The best polyurethane caulk for structural applications.
Loctite has designed a number of polyurethane sealants that are suited for any outdoor structural application.
If you’re sealing gaps around windows, doors, siding, garage framing, fascia and sill plates, pick up Loctite PL S40 Polyurethane Window, Door & Siding Sealant. This permanent and flexible polyurethane caulk sealant is tear-resistant and will not lose its function when exposed to UV rays. It’s water proof, paintable and compatible with all common construction materials.
If you’re working on a roof, reach for Loctite PL S30 Roof & Flashing Polyurethane Sealant. This professional grade sealant complies with Federal & State Regulatory Requirements, and provides extra protection against corrosion. Its non-sag formula makes it perfect for sealing flashing around roof edging and chimneys, and is perfect for shingle tabbing.