CRL 1/2" x 1-1/8" x 4" Silicone Rubber Setting Blocks Self-Oiling Cutters Measures Thickness of Air Space

Measures Thickness of Air Space in Sealed Insulating Glass Units and Overall Unit Thickness

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

USE ONLY WITH ADEQUATE VENTILATION

and your glass is cut

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

CRL 1/2" x 1-1/8" x 4" Silicone Rubber Setting Blocks Self-Oiling Cutters Measures Thickness of Air SpaceCompatible 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.