Welcome to DWF

For any inquiries please contact
Tel: +974 4469 4539
Mob: +974 5019 1196
P.O. Box 50311, Doha – Sate of Qatar
Website: www.dohawaterproof.com
Email: info@dohawaterproof.com

Introduction

Concrete, the world’s most commonly used construction material, requires protection from aggressive factors, whether it is used to construct a sewer pipe, tunnel, wall in sewerage insulation, or civil foundations in salty or corrosive soils.

HDPE Geomembrane (High Density Polyethylene)

HDPE geomembrane liners are the preferred product for lining projects. HDPE liners are resistant to many different solvents and are the most widely used geomembrane liner in the world. HDPE liners is a membrane that is flat on both sides. HDPE geomembrane liners has a low coefficient of friction and can be easily cut, machined, welded, and thermoformed for easy fabrication. It used for complex shaped products such as fuel tanks, trash containers, dump carts, pallets, agricultural tanks, highways barriers and water and waste tanks

Specifications

Material: Polyethylene HDPE-LLDPE
Maximum Width: 7.5m
Length: Custom made up to 150m

Thickness

Geomembrane plain sheet: 0.75mm to 8mm
T-Lock from 1.5mm to 4mm
V-Lock from 1.5mm to 8mm

Types of HDPE Available

  • HDPE GEOMEMBRANE SHEET
  • HDPE TEXTURED GEOMEMBRANE SHEET
  • HDPE T-LOCK LINER
  • HDPE V-LOCK LINER
  • HDPE WELDING ROD

HDPE T-Lock

T-Lock Plastic sheet is a T-ribbed membrane that is flat on one side, while the reverse side contains parallel T-Shaped ribs. These ribs are cast into concrete at the new construction stage, thus isolating the concrete from the harmful effects of corrosive chemicals.

HDPE V-Lock

The V-Lock sheet liner has 2 splayed studs, each one 15 mm in length and joined by a cross bar in a V arrangement. The double stud unit is formed during the extrusion process, and it is integral to the sheet itself. The stud units ensure perfect embedment of the sheet liner to concrete after casting.

Welding Rod

Doha Waterproof factory supplies PE welding rod for extrusion welding. Polyethylene welding wire is often used for repairing gouges in HDPE pipe or sheet, or welding outlets on HDPE joints.
The polyethylene plastic welding rod is made from high grade polyethylene and color masterbatch through heating, plasticizing and extrusion process.

Features

  • Highly flexible.
  • Available with locking extensions.
  • Provide permanent grip.
  • Excellent resistance against acids and solvents.
  • High impermeability to any gas or liquid.
  • Thermoplastic material.
  • Excellent weldability.
  • High jointing strength.
  • Resistant to sulfuric acid (H2SO4).
  • High abrasion resistance.
  • Complete protection against corrosion.
  • Minimum water absorption.

Applications

  • Lining of Sewage RCC Pipes.
  • Lagoon & ponds.
  • Chemical tanks.
  • Basements and Foundations
  • Tunnels and Underpasses
  • Floor Slabs
  • Sewerage Treatment Works
  • Pipeline Refurbishment
  • Box Culverts
  • Potable Water Tanks
  • Underground Car Parks
  • Reservoirs
  • Immersed Tube Tunnels