D Mastic

D Mastic


Selleys D-Mastic is an alkyl resin modified, oil based caulking compound. It forms a tack-free skin on the surface when exposed to air but remains soft underneath.

  • Adheres well to most substrates including metal, glass, concrete, masonry and timber
  • Forms a surface skin, preventing transfer by touch and dirt pick-up on exposed surfaces
  • Paintable (after skin has formed)
  • Easy clean up off non-porous surfaces with mineral turpentine
  • Non-slumping
  • Long "open" time assists in the assembly of lap joints


Suitable for

  • installing/replacing gasket fixed type windscreens in cars, boats, trucks, buses
  • Sealant for lap joins between metal panels in automotive and expanded foam sandwich panel assemblies.
  • A general-purpose mastic sealant for any exterior exposed joints subject to little or no movement for the exclusion of dust, draughts and rain.


Technology Alkyl Resin
Skin Time (23C/50%RH) N/A
Movement Capability ± 5%
Tensile Strength N/A
Shore A Hardness N/A
Curing rate (23C/50%RH) N/A

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