CRL Super Spacer Sealant - Black Silicone

Cat. No. 877 Silicone Foam and Metal Spacer Insulating Glass Sealant is a single component urethane for the fabrication of quality single seal insulating glass units. Simply attach a SGT Polyethylene Sealant Guide to match your Super Spacer® width and backfill to the edge of the glass. Cat. No. 877 is a special low-solvent formulation that is made to be compatible with Super Spacer's adsorbent, and does not require a polyisobutylene primary seal. Cat. No. 877 may also be used with adsorbent filled aluminum spacers.

Product Warning: Insulating glass units should be totally sealed with 877 within one hour of exposing Super Spacer® adsorbent to the atmosphere.

One-Part Fast Cure Urethane with Low Solvent Formula Compatible with Super Spacer | Easy, Inexpensive Way to Make Low Production, High Quality Insulating Glass Units