1. Mix Xypex with clean water only (water that is free of salt and other deleterious materials).
2. Mix clean water into the Xypex powder with a paddle on a slow speed electric drill (250 RPM) or with other equipment that ensures adequate mixing. For small jobs, Xypex may be mixed by gloved hand or by trowel.
3. Be sure that the quantity mixed can be applied within 20 minutes. As the mixture thickens, stir frequently but do not add water.
MIXING FOR SLURRY COAT
Mix Xypex powder with clean water to a creamy consistency in the following volume proportions:
For Brush Application 1.25 - 1.5 lb./ sq. yd. (0.65 - 0.8 kg/m2) 5 parts powder to 2 parts water
2.0 lb./sq. yd. (1.0 kg/m2) 3 parts powder to 1 part water
For Spray Application 1.25 - 1.5 lb./sq. yd. (0.65 - 0.8 kg/m2) 5 parts powder to 3 parts water (Ratio may vary with equipment type)
MIXING DRY-PAC
Using a trowel, mix 1 part clean water with 6 parts Xypex Concentrate powder by volume for 10 to 15 seconds. Lumps should be present in this mixture. Do not mix more than can be applied in 20 minutes.