Unicorn PVC Waterstop

PVC waterstop for concrete joint sealing.

Unicorn PVC Waterstop – Reliable Concrete Joint Waterstop

Unicorn PVC Waterstop is a high-quality PVC waterstop strip designed for sealing construction and expansion joints in concrete structures. Manufactured from flexible, durable PVC material, this waterstop provides reliable waterproofing for concrete joints that are subject to hydrostatic pressure and movement. The unique profile creates a mechanical barrier that interlocks with the surrounding concrete, effectively preventing water passage through the joint. Its flexibility accommodates thermal movement, settlement, and structural expansion while maintaining a permanent watertight seal. Easy to install using standard concrete practices, Unicorn PVC Waterstop is compatible with most concrete mixes and is suitable for a wide range of water-retaining and water-excluding structures.

Key Features

✔ Reliable waterproofing of concrete joints
✔ Flexible – accommodates structural movement
✔ High tensile strength and durability
✔ Resistant to chemicals and environmental degradation
✔ Easy to install with standard concrete practices
✔ Compatible with most concrete mixes
✔ Long-lasting performance

Applications

Water tank construction joints
Basement and foundation joints
Tunnel and underground structure joints
Retaining wall pours
Bridge and dam joints
Swimming pool construction
Sewage and wastewater treatment structures

Technical Specifications

Width	150mm / 230mm / 320mm
Material	Flexible PVC
Type	Flat / Center-Bulb
Length	10m per roll
Tensile Strength	> 10 MPa
Hardness (Shore A)	75–85
Temperature Range	-30°C to +60°C

Installation Procedure

Position the waterstop at the center of the construction joint.
Secure using appropriate clips or reinforcing bars.
Ensure continuous contact along the entire joint length.
For lap joints, overlap sections by at least 100mm.
For T-junctions, use preformed corner pieces or field weld.
Cast concrete carefully to avoid displacement of the waterstop.

Storage

Store in a cool, dry place away from direct sunlight and solvents. Shelf life is indefinite when stored properly.

Safety Precautions

Wear gloves during installation.
Avoid contact with hot surfaces and flames.
Keep away from children.
Refer to Material Safety Data Sheet (MSDS) before use.

Frequently Asked Questions

Seepage is typically caused by poor waterproofing, cracks in walls or roofs, inadequate drainage systems, or damaged plumbing, and can also occur from water accumulation during heavy rain finding its way through weak points.

Termite control involves soil treatment with approved chemicals that create a protective barrier around the building, preventing termites from entering.

Signs include dampness on walls, musty odours, visible mould, water stains, and efflorescence (white powdery deposits). If you notice any of these, professional waterproofing is recommended.