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CS-300 High Performance Surface Primer

Surface preparation coating and installation aid for concrete and metal surfaces for bonding preformed sealants in wet conditions or frozen concrete structures.


CS-300 surface primer has the ability to create a bond on wet concrete surfaces. CS-300 is ideal when working in extreme weather conditions such as freezing temperatures or heavy rain.

Physical Properties

Color:                                            Light Amber

% Solids:                                      18 % ±2%

Solvent Type:                               Hexane

Flash Point:                                  -20˚F

Weight per Gallon:                      5.9 pounds

Dry Time @ 77˚F (25˚C):              15 minutes or less

Dry Time @ 40˚F (4˚C):                15 minutes

Clean Up:                                     Mineral Spirits

Coverage per Gallon:                  Approximately 300 sq. ft on wet cast concrete

Min. Storage Temperature:        40˚F – 80˚F

Surface when dry:                       Tacky