Designed to seal shingles, gutters, chimneys, skylights, and ducts, this polyurethane exterior caulk is an ideal option for fixing these roof issues. The 10.1-ounce tube of exterior caulk’s ...

However, only two types of sealants yield the best results: polyurethane-based sealants and silicone-based sealants. The former is the industry standard for windshield installation and repairs ...

Material prices range from $20 to $125 per gallon. Polyurethane is one of the most budget-friendly types of sealant materials on the market. Acrylic is not far behind polyurethane-based sealants ...

Dear Henri: We clipped your column titled “Silicone caulk doesn’t stand up to polyurethane,” knowing that we would need the product you recommended — Sikaflex-1a — which we couldn’t ...

There are four basic types of caulking: latex, butyl, silicone and polyurethane. 1. Latex caulk is the most popular because it is water soluble and that makes it easy to use and easy to clean up ...

Name the surface -- there is a specialty caulk for it. If you're unsure about which one to buy, try polyurethane caulk. It sticks to everything, remains soft and pliable and can be painted.

It should not adhere to any material in the bottom of the crack in order to allow the caulking compound to stretch and compress without interference. Use a polyurethane caulking compound and apply ...