A unique product when compared to other products because of its DRY SEAL TECHNOLOGY, while other open cell window and door foam sealants can easily absorb and trap water - particularly from water pooling or wind-driven rain events. Unlike open cell foams, Handi-Seal® repels water, allowing for quick evaporation of moisture. It has been specifically formulated as a low pressure foam. Low pressure means that as the foam expands, it does not exert harmful pressure on windows and doors, which can lead to bowing of frames.