Polymetric Sand

The pavement surface and joints must be completely dry. The outdoor temperature must be equal to or greater than 4°C (39°F). No rain should be forecast within the next half hour after installation and activation.

WATERING THE SAND JOINTS

Important: You will need to gradually water the Polymeric Sand 3 times. When doing so do not direct any water on the joints as it will displace the sand from the joints. Also, make sure not to over flood the placement joints as this will wash away the active ingredients from the polymeric sand, leading to poor results or failure.

i) First Wetting

1. Work in sections of about 100 m2 (1000 sq/ft).
2. Use a water hose equipped with a shower head working at medium debit. A good water debit is necessary but no pressure that could displace the sand from the joints.
3. Starting at the highest elevation of your surface, position the shower head at 1 foot from the surface and shower the stones in a sweeping movement from left to right.
   Clean the stone surface rapidly while allowing the water to slowly migrate and channel into the joints. This first step will ensure that your stones are thoroughly free of all dust and will wet and stabilize the sand.
4. When finished watering your first section, you are then ready to proceed to the second wetting.
   
   Notes: Focus on watering the stones not the pavement joints. By doing so, you will remove any fine particles that could have adhered to the pores of the substrate and keep the sand perfectly stable in the pavement joints. If pooling of water happens on top of the joints, proceed to wet another zone of your section.

ii) Second and Third Wettings

1. Change your sprayer. Now use a water hose equipped with a fine mist sprayer. If available, use a pressure washer to work faster.
2. Start again at the top of your surface and direct a fine mist of water in the air so that water gently drops down on the pavement surface and the joints. Do so until the sand joints and pavement surface have become moistened. Do not allow pooling of water on the sand joints.
3. Wait 5 to 10 minutes and repeat Step 2 one more time.

iii) Final Verification

1. 10 minutes after the Third Wetting, verify if the Polymeric Sand is thoroughly moistened.
   To do so, empty the sand joint in a few places using a key or a small screwdriver. Your sand should be moist all the way through. If you notice that water has not fully penetrated the joints, proceed with another fine mist application of water (as in step ii) until desired results are obtained.

iv) Drying Time

1. 24 hours in dry warm weather.