PREBAR PVC Waterstops: Reliable Waterproofing for Concrete Joints

When constructing concrete structures, ensuring watertight joints is critical for preventing leaks and long-term structural damage. PREBAR PVC Waterstops are designed to provide superior waterproofing performance in concrete joints, making them a key component in construction projects requiring high durability and leak prevention.

What Are PREBAR PVC Waterstops?

PREBAR PVC Waterstops are flexible, durable PVC profiles embedded in concrete joints to prevent water ingress. They are essential for both internal and external waterproofing systems, ensuring that movement in the structure does not compromise its watertight integrity. These waterstops create a physical barrier, preventing water from passing through concrete joints and reducing the risk of leakage in structures exposed to water pressure.

Applications of PREBAR PVC Waterstops

Basements & Underground Structures – Prevents water penetration through construction joints.

Retaining Walls & Foundations – Protects against hydrostatic pressure.

Water Tanks & Reservoirs – Ensures watertight containment of liquids.

Tunnels & Dams – Provides long-term waterproofing in heavy-duty environments.

Expansion Joints in Bridges & Parking Structures – Allows for controlled movement while maintaining waterproofing integrity.

How Do PREBAR PVC Waterstops Work?

PREBAR PVC Waterstops function by creating a mechanical barrier within the concrete joint. Once embedded, they effectively block water from seeping through cracks or gaps in the concrete caused by shrinkage, settlement, or expansion. Their flexible yet strong PVC material allows for movement while maintaining a secure seal against water infiltration.

Installation Guide: Quick Steps

Installing PREBAR PVC Waterstops correctly is crucial for their effectiveness. Follow these key steps:

For Internal Waterstops (Center Bulb Design for Movement Joints)

Positioning: Place the PVC waterstop in the middle of the concrete joint before pouring concrete.

Securing: Use formwork clamps or tie wires to keep the waterstop in place.

Concrete Placement: Pour concrete in layers to prevent voids around the waterstop.

Vibration: Ensure proper compaction using mechanical vibration to eliminate air gaps.

For External Waterstops (Flat Rib Design for Construction Joints)

Surface Preparation: Ensure the joint surface is clean and free from debris.

Placement: Attach the external waterstop to the concrete surface using adhesive or mechanical fasteners.

Concrete Pouring: Carefully pour concrete to cover the waterstop completely.

Curing: Allow adequate curing time before exposing to water pressure.

PREBAR PVC Waterstop Roll Sizes

Internal Systems

12.5M x 250MM

15M x 150MM

External Systems

12.5M x 250MM

15M x 150MM