- Product Type:Elastomeric Sealant
- Application Area:AC Ducts, HVAC Ducts
- Compatible Substrates & Surfaces:Metal, Glass
- Cure Method:Moisture Cure
- Application Method:Gun
- Chemical Family:Silicones
POLYSIL HI-TEMP is a one-part silicone sealant that provides a long lasting, flexible seal with excellent adhesion to most surfaces. POLYSIL HI-TEMP cures in the presence of atmospheric moisture. There is little change in gunability at temperatures ranging from -80ºF to 600ºF.