Waterproofing membranes
EXCALD HDPE — HDPE Pre-Applied Self-Adhesive Waterproofing Membrane
Pre-applied HDPE membrane that bonds to subsequently poured concrete, helping limit lateral water migration beneath basement slabs and behind below-ground walls. Select the adhesive-lap system for the approved concrete sequence and detailing method.
Product image
Recommended applications
Basement rafts, below-ground walls, tunnels and underground civil works.
Key product data
| Composite thickness | 1.2, 1.5, 1.7 mm; confirm selected 1.2 mm grade |
|---|---|
| Lap system | Self-adhesive / لاصقة |
| Storage | ≤45°C; relative humidity ≤80% |
Reference information from the supplied product data. Performance and consumption depend on the grade and application conditions; confirm details in the batch documentation.
Standards & test methods
Reference standards and test methods stated in the product technical data. The two 1.2 mm options are identified here as A and B by their different HDPE film thicknesses. Select the required grade when ordering.
| Property | 1.2 mm (A) | 1.2 mm (B) | 1.5 mm | 1.7 mm | Test method |
|---|---|---|---|---|---|
| Bare HDPE film thickness (mm) | 0.75 | 0.80 | 0.90 | 1.20 | ASTM D3767 |
| Tensile strength (N/mm²) | 21 | 25 | 25 | 25 | ASTM D412 |
| Elongation (%) | 400 | 500 | 500 | 500 | ASTM D412 |
| Low-temperature flexibility | -25°C | -25°C | -25°C | -25°C | ASTM D1970 |
| Puncture resistance (N) | ≥800 | ≥1000 | ≥1000 | ≥1200 | ASTM E154 |
| Hydrostatic head (m) | >70 | >70 | >70 | >70 | ASTM D751-06 (2011) |
| Linear dimensional change (%) | 0.1 | 0.1 | 0.1 | 0.1 | ASTM D1204 |
| UV exposure: 45 days | No change | No change | No change | No change | ASTM G153 |
| Colour | White / light grey | White / light grey | White / light grey | White / light grey | — |
| Peel adhesion to concrete | ≥880; unit printed as M/M, confirm | ≥1500 N/m | ≥1500 N/m | ≥1500 N/m | ASTM D903 |
References reproduce the editions listed in the product data. Confirm the required edition, selected grade and supporting test report for consultant approval.
Application & selection notes
For hot, dry site conditions, check substrate temperature, moisture, working time and curing before application. The heat resistance of a cured membrane does not permit installation outside the application limits in its TDS.
Specify for Saudi Arabia, UAE & GCC projects
Send the project location or destination port, application, substrate, required thickness, area in m², quantity and delivery schedule. Request the selected grade, export packing, TDS and batch documentation for consultant review. Manufactured in China; project approvals are reviewed for each enquiry.
Contact the export teamHDPE waterproofing for basement rafts and foundations
This pre-applied waterproofing membrane is laid before the structural concrete is cast. It bonds to the subsequently poured concrete. It is intended for the specified below-ground assembly, rather than installation as a general roof covering.
Pre-applied describes the construction sequence; self-adhesive describes the selected adhesive system. Confirm lap preparation, terminations, penetrations and protection during reinforcement work. Where the specification requires welded laps, compare the separate welded HDPE product.
For a Saudi Arabia or UAE quotation, send the required thickness, drawings of critical details, basement area, destination port and consultant specification. The technical table on this page describes the supplied grade; project acceptance must be checked separately.