Densyl Mastic

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Molding and Filler Mastic

A cold applied self-supporting mastic. Densyl Mastic is a cold-applied self-supporting mastic with excellent sealing properties.

Uses and Applications

Densyl Mastic Blankets are used to contour flanges, couplings, valves and irregular surfaces. It is applied prior to the tape application and generally used in conjunction with primer, Denso Petrolatum Tapes or Denso Bituminous Tapes.

Petrolatum based molding and filler mastic.   Molded on flanges, couplings and valves before using petrolatum tape or other tapes.   Densyl Mastic provides waterproof sealing, filling and caulking.