Wet/Dry Patching Black Patching Cement

Asphalt Patch Coatings

Kool Seal® Storm Patch® Wet/Dry Patching Cement is a cement for asphalt-based roofing substrates that seals quickly to both wet or dry surfaces, even underwater.


  • Seals quickly, will not pull apart or lose it bond, remains soft and pliable
  • Resists temperature change
  • can be apllied to wet or dry surfaces, even underwater
Product # ColorSizeUPCPDSSDS
KS0083300-16 Black1 Gallon50926002725
KS0083300-01 Black1 Cart50926002732

Additional information

Clean Up

Immediately with mineral spirits.

Coverage Rate

10-15 sq ft per gallon per coat. Will vary considerably depending on the type of repairs made. 6-24 linear ft per cartridge depending on joint size.

Dry Time

Allow 24 hours between coats. Cures in 1-3 days.


Metal, asphalt, smooth BUR, modified bitumen, rolled roofing, asphalt/fiberglass shingles, chimney & pipe flashings. Do NOT use on shingle-ply membranes.