Waterstops
Waterstops are physical barriers used in formed concrete to prevent water from passing through the joints between new and old concrete. They are highly effective in addressing issues such as water infiltration, joint movement, and hydrostatic pressure. If you're facing these challenges, a waterstop can provide a reliable solution and future-proof your structures. We provide a full range of waterstops and supplies, along with expert guidance to ensure an effective and comprehensive solution for your project.
Why Choose Our Waterstops
We are Illawarra's leading waterproofing suppliers, supplying premium waterstops across the Illawarra, offering a wide range of PVC and swellable options from trusted brands. With over 120 years of experience and a highly trained team, we’re here to provide expert guidance in choosing the right waterstops for your requirements.
Waterstops product categories
Waterstops information
Waterstops are used during cast-in-concrete projects to produce watertight seals in both movement and construction joints. They are applied at the time of concrete pour and are commonly used in pools, water retaining structures or when the joint protected is below the water table.
Waterstops are generally made of either bentonite or rubber composites (that swell in the presence of water) or extruded PVC (that act as a physical barrier due to their shape).
There are 2 types of waterstops:
- Swellable waterstops that swell in the presence of water to create a pressure seal.
- PVC waterstops that have a specific shape with bulbs that make it difficult for water to move past it within the joint.
Both types of waterstop are effective.
Swellable waterstops are more easily placed than PVC waterstops but can be dislodged during the concrete pouring process.
PVC waterstops are a more difficult application as they are tied to the steel reinforcement. They also need to be placed prior to any concrete being poured as they need to go into both the older concrete and the new concrete to b
Featured Waterstops products
Waterstop RX - Amcol Australia
An active sodium bentonite based waterstop that is designed to replace conventional passive PVC dumbbell waterstops, thus eliminating the requirement of split-forming and product seam welding.
Supercast PVC Waterstops - Parchem Construction Supplies
Centrally and externally placed, pvc waterstop profiles.
Sikaswell S2 - Sika Australia
Hydrophilic Polyurethane Sealant Waterstop.
Sikaswell A Profile - Sika Australia
A range of Swellable joint sealing profiles
