Description:

Dual Seal is a high performance self swelling, self healing waterproofing membrane comprising of a thick, tough, high density polyethylene sheet laminated to 4kg/m2 of quality Bentonite granules.

The Bentonite used in the manufacture of Dual Seal is capable of repeated cycles of wetting and drying without deterioration of its sealing properties and has a life expectancy measured in thousands of years (BBA Certified). It has WRAS approval for use with potable water.

Features & Benefits:

• Provides a totally watertight barrier which is 10 times greater than concrete
• Resistance to Hydrostatic head of water of 46m
• Can be applied immediately shutters are struck to wet surface/green concrete
• Can be installed in damp conditions
• Prevents tracking of water between membrane and concrete surfaces
• Surface does not require priming
• Installation temperature -30°C to +50°C
• Easily installed by non-skilled operatives
• Non-toxic
• Eliminates need for separate protection board
• Does not require welding