Products / Butyl Liquid Rubber

Butyl Liquid Rubber is a one-component, solvent-based butyl rubber roof coating applied by brush, roller or airless spray, with the catalyst already in the container. The maker states a one-coat application with no primer that results in a 20-mil film, at a coverage rate of 50 sq ft per gallon. The data sheet lists elongation of 500% and tensile strength of 1520 psi (ASTM D412), permeance of 0.166 perms at 10 mils (ASTM E96), and passing results for ASTM G21, ASTM D471, ASTM D522, TT-C-555B and wet adhesion (ASTM C794/D903) over metal, SBS and APP modified bitumen, smooth BUR, EPDM, TPO, Hypalon and SPF. It is sold in 1-gallon and 5-gallon pails in white and black, with further colors on larger orders; the data sheet states the white is ENERGY STAR qualified, several colors are listed with the Cool Roof Rating Council, and the product is Miami-Dade and State of Florida approved.