CRL 1/2" x 1-1/8" x 4" Silicone Rubber Setting Blocks Caulking & Urethane Heaters/Coolers 8 l) bottles or single

8 l) bottles or single 5 gl

Tests Single or Double Panes

Can Be Painted Over

Known for its long wheel life

CRL 1/2" x 1-1/8" x 4" Silicone Rubber Setting Blocks Caulking & Urethane Heaters/Coolers 8 l) bottles or singleCompatible with, and Will Not Discolor, Most Silicone Sealants Can Be Used for Food and Computer Related Applications 80 Durometer Hardness These CRL Silicone Rubber Setting Blocks have superior durability, are U. V. resistant, and are compatible with most silicone sealants. They will not discolor the silicone should the two come in contact with each other. Job specific testing prior to start up is recommended with each silicone sealant manufacturer.