*THIS PRODUCT IS CURRENTLY DISCONTINUED. Loctite is working to reformulate and we will update the listing if/when a replacement becomes available!*
LOCTITE® SI 7657 is a gold mist colored, phenolic copper-based sealant aerosol that helps dissipate heat and prevent gasket burnout. Also for use as an adhesive, applications include gaskets for cylinder heads, exhaust manifolds, and carburetors. The copper content improves heat transfer and eliminates hot spots. It remains tacky indefinitely and can fill surface imperfections.
Contains copper to dissipate heat and prevent gasket burnout
Air dry cure
Can also be used as an adhesive and to fill surface imperfections
Resists shop fluids, including gasoline