Waterproofing Membranes & Sheets

PD1700 comprises a high compressive strength cuspate High-Density Polyethylene (HDPE) drainage core with a geotextile filter attached to one side. It can be used alongside GP gas or waterproofing barriers to offer both shielding and drainage for external tanking purposes.

HYDROLOCK is a mechanically bonded Geosynthetic Clay Liner (GCL) composite comprising pulverised bentonite enclosed between two layers of geotextile. The internal 5 kg of natural sodium bentonite swells upon contact with water to create a low-permeability waterproofing barrier.

GP TITANBOND is a fully bonded waterproofing membrane that combines the GP TITANBOND membrane with a durable virgin polypropylene geotextile. It is designed for gas, water, and tanking protection of underground structures where harmful ground gases are anticipated.

GP TITANTANK is consists of a self-adhesive layer with an upper surface of GP TITANFLEX and a lower surface of siliconised polypropylene release film. TITANTANK is used for gas-proofing, waterproofing, and tanking underground structures where harmful ground gases are anticipated, serving as a post-applied fully bonded membrane.

The GP DPC Rolls are crafted as a single-layer, embossed damp proof course with high-performance capabilities, engineered to resist Methane, Carbon dioxide, Radon, and Moisture. They meet stringent standards set by BRE, CIRIA, and BSI (BS EN 14909 and BS8485:2015), ensuring excellent mortar adhesion. This makes them well-suited for vertical and horizontal applications in buildings taller than three storeys.

WP SAM features self-adhesive SBS polymer-modified bitumen with a grey co-extruded polyolefin upper surface and a siliconised release paper lower surface. Engineered for waterproofing underground structures, it effectively blocks RADON and other harmful ground gases.