Why Polyurethane Caulk Is Better Than Urethane Acrylic Caulk
A trip to the hardware or home improvement for a tube of caulk can be a confusing experience. Trying to figure out the difference between polyurethane, acrylic, and urethane (among other types) and their uses can make your head spin. Today’s caulks and sealants perform better than ever. Both polyurethane and urethane acrylic caulk serve the same purpose: to fill gaps between building materials and to keep water and air out. But each type has unique qualities, so it’s important to know which type works best based on the job you’re doing. What is Polyurethane Caulk? Polyurethane is an organic compound produced by the reaction of glycol and isocyanate. It is moisture- and corrosion-resistant - making it useful as a heavy-duty adhesive, sealant, and caulk. Polyurethane caulk can be applied with a caulk gun. In addition to its resistance to moisture, chemicals, and corrosion, polyurethane caulk provides excellent flexibility. It is flexible enough to resist cracking and lo...