CRS Waterproof Primer is a quality flexible, white acrylic-latex roof coating. It expands and contracts with the roof’s movement to resist damage. This coating provides a protective barrier which reflects the sun’s heat and destructive UV rays.

This helps roof surfaces stay cooler and leads to a lower interior temperature.

• For bare, uncoated asphalt roofs use 1.5 Gal of CRS Waterproofing Primer per 100 Sq. Ft and let it dry for up to 48 hours before applying chosen topcoat.
• Use 1.5 Gal. per 100 Sq. Ft. over most flat roofs and approximately 2 Gal. per 100 Sq. Ft. on asphalt shingle roofs. Apply in 1–2 coats.*

1. Apply 1 to 2 coats, dependent upon the type, age, and condition of roof surface to be coated, of CRS Acrylic to clean and dry surface using a 1 1/4” exterior paint roller nap/cover.

2. Reinforcing perimeter dripedge, seams, penetrations, and other suspect areas prior to applying chosen top coat is highly recommended.

*Usage amount will vary depending upon how old or dry the roofs are.

Mixing and Storing Procedures
No thinning or reducing is necessary. Product may separate over time. use a power mixer or paint stick to quickly stir coating before use. Carefully reseal container after every use.

• Solids by Weight: 64.8%
• Solids by Volume: 56%
• Weight per Gallon: 2 lbs
• Viscosity: 125 KU
• Elongation: 250 – 300%
• Tensile Strength: 270 psi
• Initial Reflectivity: ~85%
• Permeability: < 5 perms
• Adhesion to Poly:- 4.1 lbs/in
• Urethane Foam
• Combustible Solvents: None
• Skin Time” (50% Relative 4 – 8 Hours Humidity, 70*F)
• Full Cure” (50% Relative 24 – 48 Hours Humidity, 70*F)
• Flammability” NA Clean-Up
• Soap and Water