... trimmed, sawn, sanded and, if necessary, painted and plastered. Polyurethane foam sealant will cure when moisture in the air reacts with ... the chemicals of the foam.Features: 1) single-component, moisture curable,multi-purpose. 2) ... doorframes and walls. 3) waterproof,adiabatic,soundproof,heat-preserving,and insulating. 4) anti- erosion,no toxicity after cured. 5) can ...