Lucas 5500M Seam Sealer, Brushable Mastic Grade (3G) - Lucas 5500M Rubberized Seam Sealer, Brushable Grade Mastic, White Color. An intermediate viscosity designed for manual application to seams and fasteners. 3-Gallon Pail. Price/Pail.
Lucas 5500M Seam Sealer, Brushable Mastic Grade (3G)
$195.00 SALE $139.15
(Savings: $55.85)
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Lucas 5500M Rubberized Seam Sealer, Brushable Grade Mastic, White Color. 3-Gallon Pail. Price/Pail.

Ordering Notes:

  • Combustible item; UPS or Truck shipping only.


Lucas 5500M is an intermediate viscosity mastic designed for manual application to seams and fasteners. Its UV Stable and no overcoat is required. 5500M is intended for flashing, sealing and repairing metal roofs and trailers, built-up roofing, modified bitumen, TPO and many other single ply systems. Lucas 5500M Seam Sealer is manufactured from a 100% synthetic rubber base to semi-mastic viscosity. It contains no asphalt or other bituminous material. Lucas 5500M is a semi self-leveling brushable mastic viscosity.


  • Apply Lucas 5500M Seam Sealer as it comes from the container with caulking gun. Surface must be free of oil and dirt.
  • Lucas Seam Sealer will adhere to wet and underwater surfaces when used for repairs only. Caulking gun apply a bead ¼ to ½ inch thick. For single-ply systems, consult the manufacturer to insure compatibility.


  • Lucas 5500M also have 30 Oz. Tube and 5 gallons pail.

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similar product terms: wet dry cement, wet/dry cement, wet patch, roof cement, lucas 776, lucas 776 elite, lucas roof cement, lucas elite, flashing cement, rubberized flashing cement, wet/dry flashing cement, henry 505, henry 208, henry 906, henry flashmaster, karnak 19, karnak ultra 19, flashmaster

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