CRL 1/2" x 1-1/8" x 4" Silicone Rubber Setting Blocks Self-Oiling Cutters The black color helps to

The black color helps to disguise the backer rod in certain joint applications

Apply a continuous bead of Moistop Sealant to the perimeter of the rough opening or to the backside of the mounting flange (D) of the window

they seal out air and dirt to preserve the quality of the remainder of the sealant

This CRL 12 Scale Set can be used with either the CRL MG1500 or MG1500MM Glass Thickness Lasers

CRL 1/2" x 1-1/8" x 4" Silicone Rubber Setting Blocks Self-Oiling Cutters The black color helps toCompatible 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.