NEW: SEM now offers a high performance, modified silane polymer (MSP) 1K Sprayable Seam Sealer in four OEM colors. With SEM’s new sprayable seam sealers, body technicians are equipped to duplicate OEM sprayed seams on floor pans and trunk sections. This versatile sealer can also be used under rocker panels and inside wheel wells to meet or exceed OEM quality sound dampening.