CRL 1/4" x 1-1/8" x 4" Silicone Rubber Setting Blocks (100 pack) - SBSN4

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.

Compatible with, and Will Not Discolor, Most Silicone Sealants | Can Be Used for Food and Computer Related Applications | 80 Durometer Hardness