UltraScape Slipbond | Flexible Brick Slip & Natural Stone Cladding Adhesive

UltraScape Slipbond is our go-to recommendation for tilers, cladding contractors and specialist installers who need a reliable, flexible adhesive for fixing brick slips and natural stone — internally and externally, on a wide range of substrates. It’s a product our customers consistently come back to tell us they’re delighted with: a tried-and-tested cladding adhesive that performs in all weathers and gives a strong, durable bond you can rely on.

Flexible brick slip and natural stone cladding adhesive. Internal and external use. A1 Fire Rated. Frost resistant. 2-hour pot life at 20°C. Apply within 25 minutes of bedding. 16-hour set time. 5m² coverage at 3mm depth per 20kg bag. Just add water — 5.2 litres per bag. Suitable for underfloor heating. Bed thickness 3–20mm. Bond strength >1N/mm² after 28 days. 20kg showerproof bag.

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. I work alongside a team of incredibly knowledgeable and caring individuals, and between us we’ve specified and used a lot of cladding adhesives on real projects.

Getting the adhesive right is one of the most critical decisions in any brick slip or stone cladding installation. The wrong product — or an adhesive that isn’t formulated for the substrate or exposure conditions — can lead to bond failure, particularly on external installations where freeze-thaw cycling, rain and temperature variation put the adhesive under sustained stress. Slipbond is specially formulated for exactly these conditions: the high level of redispersible powder polymer gives it flexibility and durability that standard cement-based adhesives can’t match, and the 2-hour extended workability means installers have time to work accurately without rushing.

For bulk buy savings with free delivery, Slipbond is also available as a part pallet of 32 × 20kg bags (save 2%) or a full pallet of 56 × 20kg bags (save 4%).

Download the UltraScape Slipbond technical datasheet (PDF)

Key Benefits

• Reliable bond for brick slips and natural stone — polymer-modified formulation gives bond strength >1N/mm² after 28 days, suitable for both wall cladding and floor applications
• Extended 2-hour workability — gives installers time to work accurately and make adjustments, particularly on larger or more complex installations
• Internal and external use — suitable for both sheltered interior applications and exposed external walls, including external wall installation systems
• A1 Fire Rated — classified non-combustible, suitable for use on buildings where fire performance requirements apply
• Frost resistant — formulated to perform in cold weather conditions; suitable for use in all weathers
• Flexible formulation — high redispersible powder polymer content gives flexibility that accommodates substrate movement and thermal expansion
• Suitable for underfloor heating — compatible with underfloor heating systems for internal floor applications
• Just add water — fully pre-mixed dry pack, no additional components required on site; 5.2 litres of clean water per 20kg bag
• Wide substrate compatibility — bonds to sand/cement render, brick, blockwork, concrete and external wall installation systems
• Approx 5m² coverage per 20kg bag at 3mm depth

What Can UltraScape Slipbond Be Used For?

Brick Slip Installation — External Walls

Slipbond is our recommended adhesive for fixing brick slips to external walls. Its frost-resistant, flexible formulation makes it suitable for exposed external applications where the adhesive will be subject to weathering, freeze-thaw cycling and temperature variation. It bonds to sand/cement render, brick, blockwork and external wall installation systems. The 2-hour pot life gives contractors working time to position slips accurately, and the >1N/mm² bond strength after 28 days ensures a durable, long-term fix.

Brick Slip Installation — Internal Walls

For internal brick slip installations — feature walls, fireplace surrounds, kitchen splashbacks and similar — Slipbond provides a strong, reliable bond to brick, blockwork and sand/cement render. The extended workability makes it well suited to detailed internal work where accurate positioning is important.

Natural Stone Cladding — External

Slipbond is suitable for fixing natural stone to external walls and substrates. On large-format stone, back buttering the stone unit prior to embedment is advisable to ensure full coverage and a strong bond. The flexible polymer formulation accommodates the differential movement that can occur between natural stone and the substrate, reducing the risk of bond failure over time.

Natural Stone Cladding — Internal

For internal natural stone wall and floor applications, Slipbond’s extended workability and flexible formulation make it a reliable choice. It is compatible with underfloor heating systems for floor applications, and bonds to the full range of standard internal substrates.

External Wall Installation Systems

Slipbond is specifically formulated for use with external wall installation systems, making it suitable for external wall build-ups where brick slips or natural stone are being fixed to a carrier system.

Why Landscaping Contractors Use Slipbond

Got an existing concrete patio or base that needs transforming? Slipbond provides a flexible, frost-resistant bonding solution for fixing suitable porcelain and natural stone paving to a prepared concrete substrate — without the need to build up a completely new bedding system.

For landscaping contractors, this is a particularly useful proposition. Where a customer already has a sound concrete base, Slipbond can be used as a bonding layer between that substrate and the paving material — resurfacing an existing base rather than starting from scratch. Trade guidance specifically identifies Slipbond as suitable for bonding porcelain tiles and slabs to concrete substrates for external patios.

• Ideal for existing concrete bases — useful where a customer already has a sound concrete patio or driveway base that needs resurfacing with porcelain or natural stone
• Suitable for porcelain applications — trade guidance specifically identifies Slipbond for bonding porcelain tiles and slabs to concrete substrates
• Works with natural stone — specifically formulated for natural stone with a flexible, polymer-modified formulation
• Flexible polymer formulation — increased flexural capacity makes it particularly useful where some movement or vibration in the substrate needs to be accommodated
• External use and frost resistant — important for UK landscaping, where installations are exposed to changing weather conditions year-round
• 3–20mm application thickness — gives the installer flexibility when dealing with minor variations in the substrate surface
• Extended workability — 2-hour pot life gives contractors time to work accurately across larger or more intricate areas
• One product for different materials — the same adhesive can be used for appropriate porcelain, natural stone and brick slip applications, reducing the number of products needed on site
• Practical 20kg bag format — easy to transport and mix on site

What Substrates Is Slipbond Compatible With?

• Sand/cement render
• Brick
• Blockwork
• Concrete
• External wall installation systems

Coverage

Coverage figures are approximate and will vary depending on substrate regularity, application method and waste.

Features & Benefits

• Flexible cladding adhesive — UltraScape Slipbond
• Polymer-modified — high redispersible powder polymer content
• A1 Fire Rated — non-combustible classification
• Frost resistant — suitable for use in all weathers
• Extended workability — 2-hour pot life at 20°C
• Apply within 25 minutes of bedding
• Set time: 16 hours
• Bond strength: >1N/mm² after 28 days
• Bed thickness: 3–20mm
• Coverage: approx 5m² at 3mm depth per 20kg bag
• Water required: 5.2 litres per 20kg bag
• Colour: grey/brown
• Suitable for underfloor heating
• Internal and external use — walls and floors
• Compatible with external wall installation systems
• Substrate compatible: render, brick, blockwork, concrete
• Just add water — fully pre-mixed dry pack
• 20kg showerproof bag
• Manufacturer: UltraScape (Instarmac Group)

Technical Specification

Download the UltraScape Slipbond technical datasheet (PDF)

Frequently Asked Questions about UltraScape Slipbond

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.

What is UltraScape Slipbond?

UltraScape Slipbond is a flexible adhesive designed for fixing brick slips and natural stone to a range of substrates. It can be used for both internal and external wall applications.

What can Slipbond be used for?

Slipbond is designed for fixing brick slips and natural stone to substrates including sand/cement render, brickwork and blockwork. It can also be used for wall and floor applications and with internal and external wall installation systems.

Can Slipbond be used outside?

Yes. Slipbond is suitable for internal and external applications and is designed to perform in varying weather conditions. It is also frost resistant.

Is Slipbond suitable for natural stone?

Yes. Slipbond is specifically formulated for fixing natural stone as well as brick slips.

Can Slipbond be used for brick slips?

Yes. Brick slips are one of the primary applications for UltraScape Slipbond, making it suitable for both internal and external brick slip installations.

Can Slipbond be used on render?

Yes. Slipbond can be used to fix brick slips and natural stone to sand/cement render, as well as brick and blockwork.

Can Slipbond be used on blockwork?

Yes. UltraScape Slipbond is suitable for fixing brick slips and natural stone to suitable blockwork substrates.

Is Slipbond flexible?

Yes. Slipbond is formulated as a flexible cladding adhesive, making it suitable for applications where accommodating some movement is important.

How thick can Slipbond be applied?

Slipbond can be applied at thicknesses from 3mm to 20mm, allowing it to accommodate different installation requirements.

Does Slipbond have good workability?

Yes. One of the product’s key features is its extended workability, giving installers more time to work with the adhesive during installation.

Is Slipbond frost resistant?

Yes. UltraScape states that Slipbond is frost resistant, making it suitable for appropriate external applications.

Can Slipbond be used with underfloor heating?

Yes. The manufacturer’s product information states that Slipbond is suitable for use with underfloor heating.

How much does a 20kg bag of Slipbond cover?

A 20kg bag provides approximately 5m² coverage at a 3mm depth, although actual coverage will vary depending on substrate, application thickness and installation conditions.

Is Slipbond suitable for external stone cladding?

Yes. Slipbond is designed for fixing natural stone and brick slips in external as well as internal wall applications, making it suitable for appropriate stone cladding installations.

Can Slipbond be used to bond porcelain to concrete?

Trade guidance from paving suppliers identifies Slipbond as suitable for bonding porcelain tiles and slabs to concrete substrates for external patios. Its flexible, polymer-modified formulation and frost resistance make it a practical choice for this type of application, and it is compatible with concrete as a substrate. We would always recommend checking the specific requirements of your installation and, where needed, consulting the manufacturer’s technical team before specifying.

Why use Slipbond instead of a standard adhesive?

Slipbond has been specifically formulated for brick slips and natural stone, with flexibility, extended workability and frost resistance designed around these types of cladding applications. It can also accommodate application thicknesses from 3–20mm.

Is Slipbond A1 Fire Rated?

Yes. Slipbond carries an A1 Fire Rating, classifying it as non-combustible. This makes it suitable for use on buildings where fire performance requirements apply, including higher-risk buildings where non-combustible cladding systems are required.

How long does Slipbond take to set?

Slipbond has a set time of 16 hours. The pot life (workability) is approximately 2 hours at 20°C. Stone or brick slips should be applied within 25 minutes of the adhesive bed being laid.

How long does Slipbond last in the bag?

Slipbond has a shelf life of 8 months from the date of manufacture, printed on the bag, when stored unopened in a cool, dry, frost-free area at temperatures between 5°C and 30°C. High temperatures and high humidity will reduce shelf life.

For further information or to speak to a member of our team, contact us or call 0330 122 1025 — we’re a small, family-run business and always happy to help.

• Brand: Instarmac
• SKU: TPE-ULTSLIPBND
• Weight: 20.0 kg / 44.09 lb