This Firestone® Lap Sealant liner adhesive will glue two pieces of liner together as well it adheres to all EPDM, metal, wood, asphalt and concrete. Great for repairs, patching or to adhere liner to edging, or pavers. Firestone Lap Sealant is specifically designed edge treatment used to ensure a watertight seal while seaming two EPDM liners or flashing.


Applies, adheres and cures underwater.
Remains flexible, will not crack.

Available in 10 ounce containers for caulking guns.

3/8" bead cover 16 linear feet
1/4" bead covers 24 linear feet
 

Patching Small Holes or Tears

Use the 6" single sided tape. Thoroughly clean the liner area using Primer and an abrasive pad. Wipe clean with a paper towel. Remove the paper backing and apply the tape being careful to provide a smooth cover. Roll to provide pressure to all areas of the tape. Apply Lap Sealant to the tape edges for the final step and allow to dry for several hours before contact with water.




Application

Surfaces to which Firestone Lap Sealant HS is applied must be clean, dry, free of foreign materials and excess dusting agent. Clean with broom or rags if necessary.

Wait to apply seam edge treatment a minimum of 4 hours after completion of a flashing.  Apply a layer of Firestone Splice Adhesive along the entire seam edge, a minimum of 1" on each side of the step-off following current Firestone Splice Adhesive application procedures. Allow the Splice Adhesive to flash off (get tacky).  Note: If the seam edge has beeen contaminated, clean the seam edge a minimum of 1" on each side of the step off with Firestone QuickPrime Plus and allow to dry, prior to application of the seam edge treatment.  Apply a continuous bead of Lap Sealant  approximately 3/8" x 1/4" centered over the flashing seam edge

Firestone Lap Sealant Coverage Rate

Approximately 20-22 linear feet of 3/8" x 1/4" bead per tube.