What hidden dangers does the shrinkage and expansion of foam rubber bring to doors and windows?

PolyurethaneFoamingGlue is a kind of glue that is mainly used for the side seams of building doors and windows and the expansion and contraction of components. Filling, sealing and bonding of seams and holes. It is a polyurethane elastic sealing foam material that relies on moisture to cure. It is a one-component, moisture-cured, multi-purpose polyurethane…