3M™ All Purpose Sealant Primer P591

3M™ All Purpose Sealant Primer P591 prepares surfaces to maximize bonding, resist moisture, and support bond integrity. A primed surface optimizes the performance of 3M™ Adhesive Sealants 500-series and 700-series on typical substrates like fiberglass, PVC, polycarbonate, aluminum, stainless steel, cold rolled steel, and glass. Its moisture resistance is ideal for bonding glass, acrylic, and polycarbonate windows like portholes and windshields on boats, RVs, railcars, buses, trucks, specialty vehicles, and trailers.