CRL Gray All Purpose Putty - Half Pint Finish:Gray 877 Silicone Foam and Metal

877 Silicone Foam and Metal Spacer Insulating Glass Sealant is a single component urethane for the fabrication of quality single seal insulating glass units

It meets or exceeds the following specification standards: Federal Specifications TT-S-001543A (COM-NBS) Class A for silicone building sealants

CRL 888 Premium Grade Caulking is non-stringy during application

and tapered so you can trim the nozzle to exactly the bead size you need

CRL Gray All Purpose Putty - Half Pint Finish:Gray 877 Silicone Foam and MetalGlazes Wood, Metal, and Aluminum Sash Ideal for Over The Counter Sales Available in Two Colors Apply CRL All Purpose Putty in most any glazing application to wood, steel, and aluminum sash. Its special formulation adheres firmly to sash and glass, and outlasts ordinary putties. Surfaces should be clean, dry, and free of frost. When re glazing, remove all old putty and bedding. If necessary, place glazing in hands and roll into coils to warm and