- Ready-to-Use Product Type:Sealant
- Chemical Family:Butyl Rubber
GS® 127T Sealant is a partially cross-linked butyl rubber base extruded sealant that provides a tenacious surface bond to most clean dry surfaces. This product is a tackier version of our GS® 127 Sealant and is non-skinning, has great elongation, and is extremely flexible at low temperatures while remaining stable at temperatures up to 300°F.