Paraseal LG

HDPE/Bentonite Sheet Membrane Dual Waterproofing System

Paraseal® LG is a sheet waterproofing membrane consisting of 20 mils of HDPE, expandable, granular bentonite and a protective layer of spun-bonded polyester. The composite weight of the material is up to 1.0 lb/ft², creating a dual waterproofing membrane.


  • Paraseal LG is designed for use over lagging on blindside walls, under slab, and buried forms such as elevator pits
  • It may be used on backfilled walls