UltraCrete IRR 6mm & SCJ Bundle | 24 x 25KG Bags + 12 Cans SCJ | Free Delivery

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UltraCrete IRR 6mm & SCJ Bundle | 24 x 25KG Bags + 12 Cans SCJ | Free Delivery

£628.55 ex. VAT £754.26 inc VAT
PRICE PROMISE
IRR 6MM Bags & Box SCJ on Pallet
In stock
£628.55
£754.26 inc VAT
PRICE PROMISE
Free ShippingGet Delivery By --
DELIVERY TO MAINLAND UK ONLY

For Highlands, Guernsey, Jersey, Isle of Man, and Isle of Wight – call 0330 122 1025.

Standard 3-5 day free delivery on pallets applies to England only. For all other regions please call for a quote.

£628.55
£754.26 inc VAT
PRICE PROMISE
Free ShippingGet Delivery By --
DELIVERY TO MAINLAND UK ONLY

For Highlands, Guernsey, Jersey, Isle of Man, and Isle of Wight – call 0330 122 1025.

Standard 3-5 day free delivery on pallets applies to England only. For all other regions please call for a quote.

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m
You require: 0 x 750ml Unit

About the product

UltraCrete Instant Road Repair 6mm — 24 x 25KG Bags & 1 Box SCJ (12 Cans) | Free Delivery

Everything you need for a first-time permanent footway, footpath or car park reinstatement in one deal. This bundle pairs 24 x 25KG foil bags of UltraCrete IRR 6mm with a full box of 12 SCJ Cold Joint Bitumen Spray cans — the two products always used together for a compliant, permanently sealed reinstatement. HAPAS approved since 2002, instantly trafficable once compacted, and free delivery to England & Wales.

24 x 25KG foil bags IRR 6mm + 12 x SCJ cans (1 full box). HAPAS approved since 2002. PSV 65. Depth range 15–100mm. Instantly trafficable. Free delivery to England & Wales.

We’re a small, family-run business — I’m Cleo, the owner, with over 25 years in the construction industry working with businesses including Tarmac and Instarmac. If you need technical advice or help specifying quantities, call us on 0330 122 1025 — we’re always happy to help.

What’s in the Deal?

  • 24 x 25KG foil bags UltraCrete IRR 6mm — permanent cold-lay asphalt for footways, cycle tracks, car parks and driveways
  • 1 x full box (12 cans) UltraCrete SCJ Cold Joint Bitumen Spray — applied to vertical faces and substrate before and between IRR layers
  • Free standard delivery to England & Wales

Why Buy IRR and SCJ Together?

SCJ isn’t optional — it’s the product that makes the repair permanent. Applied to all vertical edges and the substrate before filling with IRR, SCJ creates a waterproof bituminous bond that prevents water ingress and significantly extends repair life. Buying them together means you have everything on site to complete the job correctly from the start.

About UltraCrete IRR 6mm

UltraCrete Instant Road Repair 6mm is a permanent cold-lay asphalt concrete manufactured with fully graded, high PSV (65) interlocking aggregate and specially formulated bitumen containing polymers and flexibilisers. Designed for permanent first-time reinstatements in footways, footpaths, cycle tracks, car parks and driveways. HAPAS approved since 2002. Instantly trafficable once compacted.

  • HAPAS approved since 2002; PSV 65
  • Depth range: 15–100mm
  • Approved for use on the London Underground and Overground
  • SROH Fourth Edition 2020 compliant (PCSM, Appendix A2.4)
  • NBS Source-registered; UCARS product
  • Foil bags keep material fresh during storage
  • Once opened, all material should be used
  • Shelf life: 6 months from date of manufacture in sealed bags

About UltraCrete SCJ Cold Joint Bitumen Spray

SCJ is a bituminous seal and tack coat spray applied to all vertical edges and substrate before and between layers of IRR. It creates a waterproof bond at every joint, preventing water ingress and ensuring the repair bonds correctly to the surrounding surface. Simple aerosol application — no waste, no brushes.

  • Applied to all vertical faces and substrate — before and between IRR layers
  • Can be used in all weathers
  • Simple and economical — aerosol application, no waste
  • Approved for use on the London Underground and Overground
  • NBS Source-registered
  • Download the SCJ technical datasheet (PDF)

Complete Reinstatement System

  • UltraCrete SCJ Seal & Tack Spray (included in this deal) — applied to all vertical faces and substrate before and between layers
  • UltraCrete IRR 6mm (included in this deal) — the reinstatement material
  • UltraCrete Instaband ECO — thermoplastic overbanding applied after compaction where specified

UltraCrete Approved Manhole Reinstatement System

UltraCrete’s PAS and HAPAS approved Ironwork Reinstatement System provides a complete range of high-performance materials for the installation and reinstatement of manholes, access covers and highway ironwork. The system brings together approved bedding mortars, rapid-setting backfill concretes, cold and hot-lay surfacing materials, seal and tack coat and thermoplastic overbanding — providing a complete solution for durable, high-performance highway reinstatement. Independently tested and approved through UKAS-accredited laboratories, with products certified by the British Board of Agrément (BBA) and Pavement Testing Services (PTS).

Product Role in System
M45 Rapid strength bedding mortar
M60 Rapid strength bedding mortar
M60 F Fibre-reinforced rapid strength bedding mortar
M90 All-purpose fast-set mortar
Envirobed CD534 Cementitious bedding
PY4 Polyester resin bedding system
QC10 Rapid strength backfill concrete
QC10 F Rapid set flowable concrete
IRR 6mm (this product) Cold-lay surfacing asphalt — footways, cycle tracks & car parks
IRR 10mm Cold-lay surfacing asphalt — Type 3 & 4 roads
Tough Patch Rapid High skid resistance cold-lay surfacing
SCJ Seal & Tack Coat (this product) Bituminous seal and tack coat spray
Enviro Mastic Hot mastic asphalt surfacing
Instaband ECO Thermoplastic overbanding tape

Also Available

IRR 6mm & SCJ Bundle FAQs

I’m Cleo, owner of The Paving Experts, with over 25 years in the construction industry working with businesses including Tarmac and Instarmac. I work alongside a small team of incredibly knowledgeable and caring individuals who share the same passion for getting it right. The FAQ answers below come from the questions we’re asked every single day.

Do I really need to use SCJ with IRR?

Yes — SCJ is what makes the repair permanent. Applied to all vertical edges and the substrate before filling, it creates a waterproof bituminous bond that prevents water getting under the repair. Without it, water ingress is the most common reason reinstatements fail prematurely.

How do I apply SCJ?

Shake the can well and spray directly onto the vertical faces of the excavation and the substrate before placing IRR. Re-apply to vertical edges before each additional layer of IRR. After final compaction, apply SCJ to the joint between the repair and the surrounding surface. No brushes or mixing required — aerosol application throughout.

How many cans of SCJ do I need for 24 bags of IRR?

A box of 12 cans is the standard pairing for a 24-bag quantity. Exact usage depends on the number, size and depth of individual repairs — call us on 0330 122 1025 if you want to sense-check quantities for a specific programme.

Can SCJ be used in the rain?

Yes — SCJ can be applied in all weathers. It’s one of the reasons IRR and SCJ are the combination of choice for reactive maintenance work whatever the conditions.

Is SCJ available separately?

Yes — see UltraCrete SCJ single can or contact us for box pricing on 0330 122 1025.

Is IRR 6mm a permanent repair?

Yes. When applied correctly with SCJ on all edges and substrate, IRR 6mm provides a first-time permanent reinstatement. HAPAS approved since 2002.

What surfaces is IRR 6mm designed for?

Footways, footpaths, cycle tracks, car parks and driveways. For Type 3 and 4 roads, IRR 10mm is the correct specification (minimum depth 30mm vs 15mm for 6mm grade).

What is the difference between 6mm and 10mm?

6mm is for footways, footpaths, cycle tracks, car parks and driveways (minimum 15mm depth). 10mm is for Type 3 and 4 roads (minimum 30mm). If your repair is shallower than 30mm, 6mm is the correct specification.

Should I choose bags or tubs?

Both contain 25kg of the same IRR 6mm material. Bags give better pallet efficiency (56 vs 52 tubs) and suit larger repairs or bulk purchasing. Tubs are resealable, stackable and easy to carry to the point of repair — preferred by contractors moving between jobs. Once opened, all material should be used.

How quickly can the area be opened to traffic?

Instantly — once correctly compacted, immediately trafficable for pedestrians and cyclists. No curing wait required.

Can I use IRR 6mm in the rain?

IRR 6mm is compaction-cured and can be used in light rain. If heavy or persistent rain is forecast, UltraCrete Tough Patch is the better product — it is water-cured and specifically designed for wet conditions.

When should I use Tough Patch instead of IRR 6mm?

UltraCrete Tough Patch is recommended for areas requiring maximum skid resistance and for use in heavy or persistent rain. Call us on 0330 122 1025 if you’re unsure.

Why is my IRR firm in the bag?

Bags at the bottom of a stack can appear firm due to the weight above. Apply light pressure to the edge of the bag to restore normal consistency. In cold weather, store somewhere warm overnight before use.

Is IRR 6mm approved for use on the London Underground?

Yes — both IRR 6mm and SCJ are approved for use on the London Underground and Overground.

What is the shelf life?

IRR 6mm: 6 months from date of manufacture in sealed bags. Once opened, all material should be used. SCJ: check individual cans for date of manufacture — store in a cool, well-ventilated place.

Is a larger bundle available?

Yes — see our 56-bag full pallet & 12 SCJ cans deal with free delivery to England & Wales. For bespoke quantities or programme pricing, call us on 0330 122 1025.

For technical support, specification help or to place an order, contact our team or call 0330 122 1025 — we’re a small, family-run business and always happy to help.

  • Brand: Instarmac
  • Product Type: Pothole Repair
  • SKU: TPE-IRR6X24+SCJ
  • Weight: 609.0 kg / 1342.61 lb

Delivery & Returns Info

Our delivery charges are calculated based on the size and weight of your order. When you add items to your basket, the delivery charges are displayed. Small orders are distributed via courier; larger orders via Pallet Network. Collection is available from our Tamworth depot by request (contact us first to arrange on 0330 122 1025).

Please note, there is a slight surcharge for areas that are outside of our locality, charges calculated at checkout.

Weight and size Next Working Day*
Order before 1PM (excl. VAT)
Standard 3-5 Working Day
(excl. VAT)
0-13KG
(1 small bag/tub)
£14.00 £9.00
13.01-25KG
(1 large bag/tub)
£16.00 £10.00
25.01-50KG
(2 bags/tubs)
£26.00 £19.00
50.01-75KG
(3 bags/tubs)
£36.00 £28.00
75.01-100KG
(4-5 bags/tubs)
£46.00 £37.00
100.01-249KG
(6-9 bags/tubs)
£60.00 £45.00
249.01-750KG
(10 bags plus)
£68.00 £48.00
750.01KG plus
(30 bags plus)
£75.00 £55.00
Full Pallets
(56 bags/52 tubs)
£88.00 Free of charge
Next Working Day delivery (Premium 1-2 Working Day Service) +avg. £5-10 Extra. Click here for prices
Scotland Delivery Service (Deliveries into some parts of Scotland can take 8-10 working days) Click here for prices
Local Delivery & Click & Collect: Email: orders@thepavingexperts.co.uk

Delivery Information

  • Prices apply to mainland England and Wales. Scottish delivery slight surcharge.
  • Orders are packed and dispatched Monday–Friday (excluding weekends & public holidays).

Next Working Day Delivery

  • Order before 1PM → same-day dispatch.
  • Order after 1PM or on weekends/bank holidays → next working day dispatch.
  • You'll receive tracking updates via email/SMS if you provide your details.

Delivery Examples

  • Mon before 1PM → Packed Mon, delivered Tue.
  • Mon after 1PM → Packed Tues delivered Wed.
  • Fri before 1PM → Packed Fri, delivered Mon.
  • Fri after 1PM/weekend → Packed Mon, delivered Tues (or Wed after a bank holiday).
  • Standard Service: 3–5 working days.

Notes

  • Occasional delays due to manufacturing, supply, or courier issues may happen, but we'll keep you informed.

Returns, cancel up to 14 days from date of delivery. Product to be returned in the same condition & packaging. No returns for cementitious & perishable products. You are responsible for the cost of returning goods to The Paving Experts, 20% admin restock fee applies. Need further info, click here.

For further detailed delivery information click here →

For any advice; technical, product, stock or quantity needed, call our team on 0330 122 1025.

Please see our FAQs for more information.

UltraCrete Instant Road Repair 6mm — 24 x 25KG Bags & 1 Box SCJ (12 Cans) | Free Delivery

Everything you need for a first-time permanent footway, footpath or car park reinstatement in one deal. This bundle pairs 24 x 25KG foil bags of UltraCrete IRR 6mm with a full box of 12 SCJ Cold Joint Bitumen Spray cans — the two products always used together for a compliant, permanently sealed reinstatement. HAPAS approved since 2002, instantly trafficable once compacted, and free delivery to England & Wales.

24 x 25KG foil bags IRR 6mm + 12 x SCJ cans (1 full box). HAPAS approved since 2002. PSV 65. Depth range 15–100mm. Instantly trafficable. Free delivery to England & Wales.

We’re a small, family-run business — I’m Cleo, the owner, with over 25 years in the construction industry working with businesses including Tarmac and Instarmac. If you need technical advice or help specifying quantities, call us on 0330 122 1025 — we’re always happy to help.

What’s in the Deal?

  • 24 x 25KG foil bags UltraCrete IRR 6mm — permanent cold-lay asphalt for footways, cycle tracks, car parks and driveways
  • 1 x full box (12 cans) UltraCrete SCJ Cold Joint Bitumen Spray — applied to vertical faces and substrate before and between IRR layers
  • Free standard delivery to England & Wales

Why Buy IRR and SCJ Together?

SCJ isn’t optional — it’s the product that makes the repair permanent. Applied to all vertical edges and the substrate before filling with IRR, SCJ creates a waterproof bituminous bond that prevents water ingress and significantly extends repair life. Buying them together means you have everything on site to complete the job correctly from the start.

About UltraCrete IRR 6mm

UltraCrete Instant Road Repair 6mm is a permanent cold-lay asphalt concrete manufactured with fully graded, high PSV (65) interlocking aggregate and specially formulated bitumen containing polymers and flexibilisers. Designed for permanent first-time reinstatements in footways, footpaths, cycle tracks, car parks and driveways. HAPAS approved since 2002. Instantly trafficable once compacted.

  • HAPAS approved since 2002; PSV 65
  • Depth range: 15–100mm
  • Approved for use on the London Underground and Overground
  • SROH Fourth Edition 2020 compliant (PCSM, Appendix A2.4)
  • NBS Source-registered; UCARS product
  • Foil bags keep material fresh during storage
  • Once opened, all material should be used
  • Shelf life: 6 months from date of manufacture in sealed bags

About UltraCrete SCJ Cold Joint Bitumen Spray

SCJ is a bituminous seal and tack coat spray applied to all vertical edges and substrate before and between layers of IRR. It creates a waterproof bond at every joint, preventing water ingress and ensuring the repair bonds correctly to the surrounding surface. Simple aerosol application — no waste, no brushes.

  • Applied to all vertical faces and substrate — before and between IRR layers
  • Can be used in all weathers
  • Simple and economical — aerosol application, no waste
  • Approved for use on the London Underground and Overground
  • NBS Source-registered
  • Download the SCJ technical datasheet (PDF)

Complete Reinstatement System

  • UltraCrete SCJ Seal & Tack Spray (included in this deal) — applied to all vertical faces and substrate before and between layers
  • UltraCrete IRR 6mm (included in this deal) — the reinstatement material
  • UltraCrete Instaband ECO — thermoplastic overbanding applied after compaction where specified

UltraCrete Approved Manhole Reinstatement System

UltraCrete’s PAS and HAPAS approved Ironwork Reinstatement System provides a complete range of high-performance materials for the installation and reinstatement of manholes, access covers and highway ironwork. The system brings together approved bedding mortars, rapid-setting backfill concretes, cold and hot-lay surfacing materials, seal and tack coat and thermoplastic overbanding — providing a complete solution for durable, high-performance highway reinstatement. Independently tested and approved through UKAS-accredited laboratories, with products certified by the British Board of Agrément (BBA) and Pavement Testing Services (PTS).

Product Role in System
M45 Rapid strength bedding mortar
M60 Rapid strength bedding mortar
M60 F Fibre-reinforced rapid strength bedding mortar
M90 All-purpose fast-set mortar
Envirobed CD534 Cementitious bedding
PY4 Polyester resin bedding system
QC10 Rapid strength backfill concrete
QC10 F Rapid set flowable concrete
IRR 6mm (this product) Cold-lay surfacing asphalt — footways, cycle tracks & car parks
IRR 10mm Cold-lay surfacing asphalt — Type 3 & 4 roads
Tough Patch Rapid High skid resistance cold-lay surfacing
SCJ Seal & Tack Coat (this product) Bituminous seal and tack coat spray
Enviro Mastic Hot mastic asphalt surfacing
Instaband ECO Thermoplastic overbanding tape

Also Available

IRR 6mm & SCJ Bundle FAQs

I’m Cleo, owner of The Paving Experts, with over 25 years in the construction industry working with businesses including Tarmac and Instarmac. I work alongside a small team of incredibly knowledgeable and caring individuals who share the same passion for getting it right. The FAQ answers below come from the questions we’re asked every single day.

Do I really need to use SCJ with IRR?

Yes — SCJ is what makes the repair permanent. Applied to all vertical edges and the substrate before filling, it creates a waterproof bituminous bond that prevents water getting under the repair. Without it, water ingress is the most common reason reinstatements fail prematurely.

How do I apply SCJ?

Shake the can well and spray directly onto the vertical faces of the excavation and the substrate before placing IRR. Re-apply to vertical edges before each additional layer of IRR. After final compaction, apply SCJ to the joint between the repair and the surrounding surface. No brushes or mixing required — aerosol application throughout.

How many cans of SCJ do I need for 24 bags of IRR?

A box of 12 cans is the standard pairing for a 24-bag quantity. Exact usage depends on the number, size and depth of individual repairs — call us on 0330 122 1025 if you want to sense-check quantities for a specific programme.

Can SCJ be used in the rain?

Yes — SCJ can be applied in all weathers. It’s one of the reasons IRR and SCJ are the combination of choice for reactive maintenance work whatever the conditions.

Is SCJ available separately?

Yes — see UltraCrete SCJ single can or contact us for box pricing on 0330 122 1025.

Is IRR 6mm a permanent repair?

Yes. When applied correctly with SCJ on all edges and substrate, IRR 6mm provides a first-time permanent reinstatement. HAPAS approved since 2002.

What surfaces is IRR 6mm designed for?

Footways, footpaths, cycle tracks, car parks and driveways. For Type 3 and 4 roads, IRR 10mm is the correct specification (minimum depth 30mm vs 15mm for 6mm grade).

What is the difference between 6mm and 10mm?

6mm is for footways, footpaths, cycle tracks, car parks and driveways (minimum 15mm depth). 10mm is for Type 3 and 4 roads (minimum 30mm). If your repair is shallower than 30mm, 6mm is the correct specification.

Should I choose bags or tubs?

Both contain 25kg of the same IRR 6mm material. Bags give better pallet efficiency (56 vs 52 tubs) and suit larger repairs or bulk purchasing. Tubs are resealable, stackable and easy to carry to the point of repair — preferred by contractors moving between jobs. Once opened, all material should be used.

How quickly can the area be opened to traffic?

Instantly — once correctly compacted, immediately trafficable for pedestrians and cyclists. No curing wait required.

Can I use IRR 6mm in the rain?

IRR 6mm is compaction-cured and can be used in light rain. If heavy or persistent rain is forecast, UltraCrete Tough Patch is the better product — it is water-cured and specifically designed for wet conditions.

When should I use Tough Patch instead of IRR 6mm?

UltraCrete Tough Patch is recommended for areas requiring maximum skid resistance and for use in heavy or persistent rain. Call us on 0330 122 1025 if you’re unsure.

Why is my IRR firm in the bag?

Bags at the bottom of a stack can appear firm due to the weight above. Apply light pressure to the edge of the bag to restore normal consistency. In cold weather, store somewhere warm overnight before use.

Is IRR 6mm approved for use on the London Underground?

Yes — both IRR 6mm and SCJ are approved for use on the London Underground and Overground.

What is the shelf life?

IRR 6mm: 6 months from date of manufacture in sealed bags. Once opened, all material should be used. SCJ: check individual cans for date of manufacture — store in a cool, well-ventilated place.

Is a larger bundle available?

Yes — see our 56-bag full pallet & 12 SCJ cans deal with free delivery to England & Wales. For bespoke quantities or programme pricing, call us on 0330 122 1025.

For technical support, specification help or to place an order, contact our team or call 0330 122 1025 — we’re a small, family-run business and always happy to help.

UltraCrete Instant Road Repair 6mm — 24 x 25KG Bags & 1 Box SCJ (12 Cans) | Free Delivery

Everything you need for a first-time permanent footway, footpath or car park reinstatement in one deal. This bundle pairs 24 x 25KG foil bags of UltraCrete IRR 6mm with a full box of 12 SCJ Cold Joint Bitumen Spray cans — the two products always used together for a compliant, permanently sealed reinstatement. HAPAS approved since 2002, instantly trafficable once compacted, and free delivery to England & Wales.

24 x 25KG foil bags IRR 6mm + 12 x SCJ cans (1 full box). HAPAS approved since 2002. PSV 65. Depth range 15–100mm. Instantly trafficable. Free delivery to England & Wales.

We’re a small, family-run business — I’m Cleo, the owner, with over 25 years in the construction industry working with businesses including Tarmac and Instarmac. If you need technical advice or help specifying quantities, call us on 0330 122 1025 — we’re always happy to help.

What’s in the Deal?

  • 24 x 25KG foil bags UltraCrete IRR 6mm — permanent cold-lay asphalt for footways, cycle tracks, car parks and driveways
  • 1 x full box (12 cans) UltraCrete SCJ Cold Joint Bitumen Spray — applied to vertical faces and substrate before and between IRR layers
  • Free standard delivery to England & Wales

Why Buy IRR and SCJ Together?

SCJ isn’t optional — it’s the product that makes the repair permanent. Applied to all vertical edges and the substrate before filling with IRR, SCJ creates a waterproof bituminous bond that prevents water ingress and significantly extends repair life. Buying them together means you have everything on site to complete the job correctly from the start.

About UltraCrete IRR 6mm

UltraCrete Instant Road Repair 6mm is a permanent cold-lay asphalt concrete manufactured with fully graded, high PSV (65) interlocking aggregate and specially formulated bitumen containing polymers and flexibilisers. Designed for permanent first-time reinstatements in footways, footpaths, cycle tracks, car parks and driveways. HAPAS approved since 2002. Instantly trafficable once compacted.

  • HAPAS approved since 2002; PSV 65
  • Depth range: 15–100mm
  • Approved for use on the London Underground and Overground
  • SROH Fourth Edition 2020 compliant (PCSM, Appendix A2.4)
  • NBS Source-registered; UCARS product
  • Foil bags keep material fresh during storage
  • Once opened, all material should be used
  • Shelf life: 6 months from date of manufacture in sealed bags

About UltraCrete SCJ Cold Joint Bitumen Spray

SCJ is a bituminous seal and tack coat spray applied to all vertical edges and substrate before and between layers of IRR. It creates a waterproof bond at every joint, preventing water ingress and ensuring the repair bonds correctly to the surrounding surface. Simple aerosol application — no waste, no brushes.

  • Applied to all vertical faces and substrate — before and between IRR layers
  • Can be used in all weathers
  • Simple and economical — aerosol application, no waste
  • Approved for use on the London Underground and Overground
  • NBS Source-registered
  • Download the SCJ technical datasheet (PDF)

Complete Reinstatement System

  • UltraCrete SCJ Seal & Tack Spray (included in this deal) — applied to all vertical faces and substrate before and between layers
  • UltraCrete IRR 6mm (included in this deal) — the reinstatement material
  • UltraCrete Instaband ECO — thermoplastic overbanding applied after compaction where specified

UltraCrete Approved Manhole Reinstatement System

UltraCrete’s PAS and HAPAS approved Ironwork Reinstatement System provides a complete range of high-performance materials for the installation and reinstatement of manholes, access covers and highway ironwork. The system brings together approved bedding mortars, rapid-setting backfill concretes, cold and hot-lay surfacing materials, seal and tack coat and thermoplastic overbanding — providing a complete solution for durable, high-performance highway reinstatement. Independently tested and approved through UKAS-accredited laboratories, with products certified by the British Board of Agrément (BBA) and Pavement Testing Services (PTS).

Product Role in System
M45 Rapid strength bedding mortar
M60 Rapid strength bedding mortar
M60 F Fibre-reinforced rapid strength bedding mortar
M90 All-purpose fast-set mortar
Envirobed CD534 Cementitious bedding
PY4 Polyester resin bedding system
QC10 Rapid strength backfill concrete
QC10 F Rapid set flowable concrete
IRR 6mm (this product) Cold-lay surfacing asphalt — footways, cycle tracks & car parks
IRR 10mm Cold-lay surfacing asphalt — Type 3 & 4 roads
Tough Patch Rapid High skid resistance cold-lay surfacing
SCJ Seal & Tack Coat (this product) Bituminous seal and tack coat spray
Enviro Mastic Hot mastic asphalt surfacing
Instaband ECO Thermoplastic overbanding tape

Also Available

IRR 6mm & SCJ Bundle FAQs

I’m Cleo, owner of The Paving Experts, with over 25 years in the construction industry working with businesses including Tarmac and Instarmac. I work alongside a small team of incredibly knowledgeable and caring individuals who share the same passion for getting it right. The FAQ answers below come from the questions we’re asked every single day.

Do I really need to use SCJ with IRR?

Yes — SCJ is what makes the repair permanent. Applied to all vertical edges and the substrate before filling, it creates a waterproof bituminous bond that prevents water getting under the repair. Without it, water ingress is the most common reason reinstatements fail prematurely.

How do I apply SCJ?

Shake the can well and spray directly onto the vertical faces of the excavation and the substrate before placing IRR. Re-apply to vertical edges before each additional layer of IRR. After final compaction, apply SCJ to the joint between the repair and the surrounding surface. No brushes or mixing required — aerosol application throughout.

How many cans of SCJ do I need for 24 bags of IRR?

A box of 12 cans is the standard pairing for a 24-bag quantity. Exact usage depends on the number, size and depth of individual repairs — call us on 0330 122 1025 if you want to sense-check quantities for a specific programme.

Can SCJ be used in the rain?

Yes — SCJ can be applied in all weathers. It’s one of the reasons IRR and SCJ are the combination of choice for reactive maintenance work whatever the conditions.

Is SCJ available separately?

Yes — see UltraCrete SCJ single can or contact us for box pricing on 0330 122 1025.

Is IRR 6mm a permanent repair?

Yes. When applied correctly with SCJ on all edges and substrate, IRR 6mm provides a first-time permanent reinstatement. HAPAS approved since 2002.

What surfaces is IRR 6mm designed for?

Footways, footpaths, cycle tracks, car parks and driveways. For Type 3 and 4 roads, IRR 10mm is the correct specification (minimum depth 30mm vs 15mm for 6mm grade).

What is the difference between 6mm and 10mm?

6mm is for footways, footpaths, cycle tracks, car parks and driveways (minimum 15mm depth). 10mm is for Type 3 and 4 roads (minimum 30mm). If your repair is shallower than 30mm, 6mm is the correct specification.

Should I choose bags or tubs?

Both contain 25kg of the same IRR 6mm material. Bags give better pallet efficiency (56 vs 52 tubs) and suit larger repairs or bulk purchasing. Tubs are resealable, stackable and easy to carry to the point of repair — preferred by contractors moving between jobs. Once opened, all material should be used.

How quickly can the area be opened to traffic?

Instantly — once correctly compacted, immediately trafficable for pedestrians and cyclists. No curing wait required.

Can I use IRR 6mm in the rain?

IRR 6mm is compaction-cured and can be used in light rain. If heavy or persistent rain is forecast, UltraCrete Tough Patch is the better product — it is water-cured and specifically designed for wet conditions.

When should I use Tough Patch instead of IRR 6mm?

UltraCrete Tough Patch is recommended for areas requiring maximum skid resistance and for use in heavy or persistent rain. Call us on 0330 122 1025 if you’re unsure.

Why is my IRR firm in the bag?

Bags at the bottom of a stack can appear firm due to the weight above. Apply light pressure to the edge of the bag to restore normal consistency. In cold weather, store somewhere warm overnight before use.

Is IRR 6mm approved for use on the London Underground?

Yes — both IRR 6mm and SCJ are approved for use on the London Underground and Overground.

What is the shelf life?

IRR 6mm: 6 months from date of manufacture in sealed bags. Once opened, all material should be used. SCJ: check individual cans for date of manufacture — store in a cool, well-ventilated place.

Is a larger bundle available?

Yes — see our 56-bag full pallet & 12 SCJ cans deal with free delivery to England & Wales. For bespoke quantities or programme pricing, call us on 0330 122 1025.

For technical support, specification help or to place an order, contact our team or call 0330 122 1025 — we’re a small, family-run business and always happy to help.

IRR 6mm Technical Details

PropertyDetail
Grade6mm
Format25KG foil bags (24 bags per order)
Depth range15–100mm (layer-on-layer for deeper reinstatements)
PSV65
Suitable surfacesFootways, footpaths, cycle tracks, car parks and driveways
ColourBlack
TrafficInstantly trafficable once compacted
WeatherAll weathers — wet, freezing or hot conditions
ApprovalsHAPAS approved since 2002; London Underground and Overground approved
ComplianceSROH Fourth Edition 2020, PCSM Appendix A2.4; NBS Source-registered; UCARS product
Shelf life6 months from date of manufacture in sealed bags. Once opened, use all material.
DatasheetDownload IRR 6mm datasheet (PDF)

SCJ Cold Joint Bitumen Spray Technical Details

PropertyDetail
Format750ml aerosol can (12 cans per box)
CoverageApproximately 150 linear metres per can (dependent on thickness applied)
ApplicationSpray-applied to vertical faces and substrate before and between IRR layers
WeatherAll weathers
ApprovalsLondon Underground and Overground approved
ComplianceNBS Source-registered; compatible with all UltraCrete IRR grades (6mm, 10mm, Red)
DatasheetDownload SCJ datasheet (PDF)

Delivery & Returns Info

Our delivery charges are calculated based on the size and weight of your order. When you add items to your basket, the delivery charges are displayed. Small orders are distributed via courier; larger orders via Pallet Network. Collection is available from our Tamworth depot by request (contact us first to arrange on 0330 122 1025).

Please note, there is a slight surcharge for areas that are outside of our locality, charges calculated at checkout.

Weight and size Next Working Day*
Order before 1PM (excl. VAT)
Standard 3-5 Working Day
(excl. VAT)
0-13KG
(1 small bag/tub)
£14.00 £9.00
13.01-25KG
(1 large bag/tub)
£16.00 £10.00
25.01-50KG
(2 bags/tubs)
£26.00 £19.00
50.01-75KG
(3 bags/tubs)
£36.00 £28.00
75.01-100KG
(4-5 bags/tubs)
£46.00 £37.00
100.01-249KG
(6-9 bags/tubs)
£60.00 £45.00
249.01-750KG
(10 bags plus)
£68.00 £48.00
750.01KG plus
(30 bags plus)
£75.00 £55.00
Full Pallets
(56 bags/52 tubs)
£88.00 Free of charge
Next Working Day delivery (Premium 1-2 Working Day Service) +avg. £5-10 Extra. Click here for prices
Scotland Delivery Service (Deliveries into some parts of Scotland can take 8-10 working days) Click here for prices
Local Delivery & Click & Collect: Email: orders@thepavingexperts.co.uk

Delivery Information

  • Prices apply to mainland England and Wales. Scottish delivery slight surcharge.
  • Orders are packed and dispatched Monday–Friday (excluding weekends & public holidays).

Next Working Day Delivery

  • Order before 1PM → same-day dispatch.
  • Order after 1PM or on weekends/bank holidays → next working day dispatch.
  • You'll receive tracking updates via email/SMS if you provide your details.

Delivery Examples

  • Mon before 1PM → Packed Mon, delivered Tue.
  • Mon after 1PM → Packed Tues delivered Wed.
  • Fri before 1PM → Packed Fri, delivered Mon.
  • Fri after 1PM/weekend → Packed Mon, delivered Tues (or Wed after a bank holiday).
  • Standard Service: 3–5 working days.

Notes

  • Occasional delays due to manufacturing, supply, or courier issues may happen, but we'll keep you informed.

Returns, cancel up to 14 days from date of delivery. Product to be returned in the same condition & packaging. No returns for cementitious & perishable products. You are responsible for the cost of returning goods to The Paving Experts, 20% admin restock fee applies. Need further info, click here.

For further detailed delivery information click here →

How to Apply IRR 6mm & SCJ

Stage 1 — Prepare the Area

  1. Saw cut a ‘picture frame’ around the full repair or reinstatement area.
  2. Remove all loose material and debris. The area does not need to be dry.

Stage 2 — Apply SCJ Cold Joint Spray

  1. Shake the SCJ can well before use.
  2. Spray SCJ directly onto all vertical faces of the excavation and the substrate (the base).
  3. Allow a few seconds for the tack coat to become touch-dry before placing IRR.

Stage 3 — Place and Compact IRR 6mm

  1. For reinstatements up to 100mm depth, use the layer-on-layer method: apply IRR to approximately 45mm depth and compact to 30mm for each layer.
  2. Before applying each additional layer, re-apply SCJ to the vertical edges of the previous layer.
  3. For the final surface layer, apply IRR to approximately 45mm and compact to 30mm.
  4. Compact in accordance with Appendix 8 of the SROH* Fourth Edition 2020.

Stage 4 — Seal the Joint

  1. After final compaction, apply SCJ to the joint between the repair and the surrounding surface.
  2. Where specified, apply UltraCrete Instaband ECO thermoplastic overbanding tape over the sealed joint.

*SROH: Specification for the Reinstatement of Openings in Highways, Fourth Edition 2020.

Download the IRR 6mm technical datasheet (PDF) | Download the SCJ technical datasheet (PDF)

Potholes form when water enters cracks in tarmac or asphalt, freezes, and weakens the surface, which then breaks under traffic. Instarmac UltraCrete offers fast, durable solutions including Instant Road Repair (IRR 6mm & 10mm), Permanent Pothole Repair (PPR), and Tough Patch for high-traffic areas. SCJ Cold Joint Bitumen Spray prevents water ingress, and Instaband ECO Tape seals repairs. IRR and PPR are bitumen-based and cure after compaction, while Tough Patch is water-activated for rapid curing, providing long-lasting repairs for roads, footpaths, driveways, and carriageways.