MULCO® Rapid Patch Bituminous Sealant

MULCO® RAPID PATCH is an exterior multipurpose, bituminous sealant that dries through solvent evaporation. It effectively seals shingles, flashings, and minor foundation holes prior to applying a foundation coating. Additionally, Rapid Patch can halt roof leaks by sealing small gaps with a diameter of less than 6 mm (¼ in).


  • Exterior
  • Stops minor roof leaks
  • Adheres to dry or damp surfaces
  • Seals small gaps up to 6 mm
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