Sealing roofing and flashing

Loctite® PL Polyurethane® Roofing & Flashing Sealant is perfect for sealing cracks between wood or metal and roof flashing and chimney and roof edging. It is also good for shingle tabbing, and covering roofing nails.

Step-by-Step Directions


Trim nozzle of cartridge to desired opening.


Place cartridge in a caulking gun and puncture the inner seal.


Apply the sealant with a steady pressure along the area to be sealed.


  • Loctite PL Polyurethane Roofing & Flashing Sealant remains flexible. It has a joint movement capability of ± 25% allowing it to accommodate the construction material movement to protect the original seal. Loctite PL Polyurethane Roofing & Flashing Sealant is weatherproof and extremely durable as it will not shrink or crack from prolonged UV or ozone exposure.