HDPE/Bentonite Waterproofing Systems

HDPE/Bentonite Waterproofing

Tremco’s Paraseal® waterproofing systems combine expandable, granular bentonite with high-density polyethylene (HDPE) for lasting protection in horizontal, vertical and lagging applications. Bentonite can expand up to 8 times its original thickness, and pairs with the HDPE to create a dual-layer solution. Paraseal systems are fully compatible with a complete line of drainage mats in addition to Tremco tapes, detailing sealants, waterstops and more.

A: Drainage Mats

A wide variety of TREMDrain® drainage mats, fittings and accessories are available to help ensure project needs are met for horizontal and vertical applications.

B: Paraseal HDPE/Bentonite Membranes

Paraseal membranes pair incredibly absorbent granular bentonite clay with HDPE to create a dual waterproofing barrier.

C: Tapes & Detailing

Compatible Tremco detailing materials like Paraseal Permenant Seam Tape and Para JT bond strongly to TREMproof Membranes to ensure continuous waterproof protection.

Benefits of Tremco HDPE/Bentonite Waterproofing Systems

Cost-Effective for the Long-Term

A broad range of products can fit any project budget — but our energy-efficiency and maintenance solutions can also help ensure cost-effective ownership and operation for the long-term

Faster Construction Time

With quick-installation products with reduced detailing work, Tremco products help minimize downtime and keep projects on track

Leak-Free Performance

TREMproof waterproofing membranes provide maximum protection from water infiltration and are third-party tested at our Building Science Laboratory

System Properties

Installation Temperatures	-25 to 130 °F (-31.7 to 54.4 °C)
Freeze/Thaw Cycles	No effect before or after installation
HDPE Thickness	20 – 60 mils
Color (Bentonite/HDPE)	Gray/black
Life Expectancy	Indefinite