CRL Dual Hytrel Cup Caulking & Urethane Heaters/Coolers It also works well with

It also works well with plastic

and Plastics

CRL Loctite® Superbonder® Adhesive sets in seconds to form a permanent transparent bond

formed-in-place silicone rubber building joint and glazing sealant

and other common building substrates

CRL Dual Hytrel Cup Caulking & Urethane Heaters/Coolers It also works well withReplaces Worn Leathers in Bulk Load Guns The most commonly worn out component part in bulk caulking guns are the leather cups. CRL Dual Hytrel Cups replace the leather cups found in most 2" (51 mm) diameter barrels. Product images shown are of the actual product or a close representation. Colors can vary depending on your computer's video card and on how your monitor's color is adjusted.