Dual Seal Mastic

Bituminous Mastic

Key Features

Bituminous mastic
Trowelling consistency
Easy to fix
Effective barrier to transmission of water
For crack filling and sealing
Compatible with the Dual Seal system

What is Dual Seal Mastic?

A trowlable mastic comprising a special formulation of expandable minerals and elastomeric compound which expands and stiffens in the presence of water to form a water proof barrier.

Dual Seal Mastic in Use

For use with DUAL SEAL waterproofing membranes to form a 450 fillet in internal corners, around pipe entries and any penetrations. It is also used for filling Voids, tie holes and any honeycombing, prior to installation of the DUAL SEAL membrane.