Joint-It Dynamic FAQs

All you need to install Joint-It Dynamic is a:

• Paddle mixer
• Hose pipe and access to clean water
• Hard-bristle and soft-bristle brushes, or alternatively a Neoprene squeegee
• Finishing bar or trowel (optional)

The hard-bristle brush is used on wet paving to brush the formula into the joints, whereas the soft-bristle brush is to finish the job.

Professional installers find a Neoprene squeegee the easiest tool for jointing, and especially when working with smooth stones such as granite.

Brushes must be clean before starting the job. After the job, make sure you wash-off any particles of the grout to stop it hardening on the brushes.

Here’s how to apply Joint-It Dynamic grout (note: also see the FAQs on pre-sealing or working with specific stones):

1. Clean the paving and remove all dust and debris from the joints. Using a leaf blower is an easy way of doing so. 
2. Open a tub of Joint-It Dynamic and take out both the bottles.
3. Once you’re ready to begin application, add both bottles of liquid – Part A and Part B – to the sand mixture inside the bucket.
4. Mix thoroughly with a paddle mixer for 3 minutes until the mixture is completely combined.
5. Add 2 litres of clean water to the bucket. Tip: use the bottles provided to measure and add this water. Doing so also helps to empty all the liquid contents from the bottles.
6. Before applying the combined mixture, thoroughly soak the paving slabs with water. While working, all of the slabs must remain constantly wet, keep re-wetting it throughout application. You cannot overwater the area.
7. Using a hard-bristle brush or squeegee, immediately apply Joint-It Dynamic into the joints. Add extra water as you work to ease the flow of the product into the joints and keep the paving surfaces wet.
8. Check the paving is still completely saturated with water and that all joints are completely filled to the top.
9. Wait 15-30 minutes in temperatures between 3-15°C. At higher temperatures, wait 10-15 minutes.
10. Thoroughly sweep the excess product from the top of the paving using a soft-bristle brush or squeegee at a 45° angle to the joints. Ensure all excess sand particles have been removed from the surface of the paving. Check all joints are filled completely to the top – if not, top them up!
11. For a smoother finish, strike off the joints using a finishing bar or trowel. If you are using a trowel or similar, ensure product is still filled to the top of the joints after use.
12. Clean tools and brushes with copious amounts of soapy water after use.

The paving should not be walked on for approximately 24 hours after applying the grout. We recommend gently testing the joints to make sure they have set before walking on the paving. Extreme high or low weather conditions will affect how long Joint-It Dynamic takes to fully harden and set.

As a smoother stone, porcelain pavers do not absorb water to the same degree as other natural stone products.

When working with porcelain with Joint-It Dynamic, you must keep both the top of the paving and the formula itself saturated with clean water. This will help the grout to flow into the joints more easily.

Also, when working with smooth stones like porcelain, using a Neoprene squeegee rather than a brush will make the job so much easier.

Paving slabs made from slate or granite may absorb water at different rates – this even applies to individual slabs from the same batch.

Before applying Joint-It Dynamic when working with either granite or slate:

1. Soak the pavers first and then pause briefly, allowing time for the stones to absorb the water.
2. Check the stones to see if any are still dry – if so, repeat the soaking process to ensure all parts of the stones are saturated.

If you do notice small dots on your paving slabs, it’s likely that part of that slab is of a harder density and not enough water was used during application. The remaining residue should weather-off over the next 3–6 months.

Important note: just like black/blue limestone, slate and granite stones should also be pre-sealed before applying Joint-It Dynamic. See the advice on pre-sealing above.

As a rule of thumb, you should not walk on the paving for at least 24 hours after applying Joint-It Dynamic. The grout must have fully hardened before walking on the area.

Weather conditions can change the grout’s setting time. At temperatures around 20ºC the grout will take approximately 24 hours to set. At lower temperatures, it will take longer. 

Before walking on the patio, gently test the joints to ensure they have set.