Several different types of caulk are available, including latex, acrylic, silicone, polyurethane, and butyl rubber exterior ...

Acrylic latex caulk is generally the cheapest ... You can buy either acid-cure silicone caulk or neutral-cure silicone caulk. Acid-cure caulk bonds well with nonporous materials, such as glass ...

Direct heat can soften silicone and can even melt it. Carefully heat the entire length of the caulk. Be mindful of any surrounding materials like plastic or acrylic, as these can melt under high heat.

Silicone adhesives and sealants have a high degree of flexibility and a very high temperature resistance (up to 600° F), but lack the strength of other epoxy or acrylic resins ... FORD ESE-M4G195-C - ...