Sealant and caulk polymer compositions

Abstract

A multistage aqueous emulsion polymer is provided that includes a) a first stage polymer having a Tg from -10°C to -50°C and a second stage polymer having a Tg less than the Tg of the first stage polymer, where at least one of the first or second stage polymers includes at least one C1-C20 alkyl (meth)acrylate. When the multistage emulsion polymer is formulated into a caulk composition that has substantially no plasticizers and / or no polyurethane, the caulk composition meets the requirement of a Class 35 caulk according to ASTM C719-22.