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HDPE/Bentonite Sheet Waterproofing Membrane for Blindside Installations

HDPE/Bentonite Sheet Waterproofing Membrane for Blindside Installations

A sheet waterproofing membrane consisting of 20 mils of HDPE, expandable, granular bentonite and a protective layer of spun-bonded polyester.

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Holds Strong

Spun-bonded polyester protects bentonite from being displaced during shotcrete placement

Consistent Coverage

20-mil HDPE membrane ensures uniform thickness

Seals Against Moisture Penetration

Granular bentonite expands up to 8 times its original thickness

Fully Compatible

With Tremco sealants, coatings and expansion joints, which is essential for tie-ins, detailing and penetrations

Paraseal LG Is Best For

Application Temperature	-25 to 130 °F (-31.7 to 54.4 °C)
ASTM D412: Elongation	500%
ASTM D5385: Resistance to Hydrostatic Head	>231 ft
Thickness	20 mil

Download any of these featured resources or find a specific type of document below.

	Paraseal® LG	Paraseal® GM	Paraseal® GM/LG 20 Mil	Paraseal® Standard
Chemistry	HDPE/bentonite	HDPE/bentonite	HDPE/bentonite	HDPE/bentonite
Hydrocarbon Resistant?	No	Yes	Yes	No
Thickness	20 mil	20 mil	20 mil	15 mil
Applications	Blindside wall, backfilled wall, below slab on grade	Methane barrier, backfilled wall	Blindside wall, below slab on grade	Backfilled wall