The DR Series PVC Waterstop is designed for external expansion joints in concrete structures where water ingress must be controlled at the outer face of the joint. Unlike an internal waterstop, this product is installed on the exterior side of the joint line and is intended to bridge movement while preserving a continuous barrier.
Final selection should be confirmed against the project drawing, movement requirements, and approved waterproofing details.
For exposed concrete, basements, tunnels, reservoirs, and retaining structures, the external profile is often chosen where the joint line needs a robust visible and durable waterstop solution.
Simplified diagram showing the external waterstop bridging a movement joint at the concrete surface.
The DR Series external expansion joint waterstop is represented here by the DR250 model, which is the current catalog reference. Exact dimensions and tolerances should be confirmed against the approved technical drawing.
| Model | Nominal Width (mm) | Typical Profile Height (mm) | Application Note |
|---|---|---|---|
| DR250 | 250 | 24 | Primary model for larger external movement joints in exposed or water-retaining concrete works. |
| The information above is a practical catalog summary for the current DR250 offering. Project-specific selection should be verified against structural drawings and approved technical documentation. | |||
The DR Series is typically specified for concrete structures where the joint line needs a durable external waterproofing solution. Common application areas include:
An internal joint waterstop is typically installed within the concrete section, whereas the DR Series is designed for the external face of the joint where it can work directly with the waterproofing system and exposed joint detail.
The DR Series is designed for external expansion joints in concrete structures where the exposed joint line needs a reliable waterproofing barrier against water ingress.
The DR250 model is the current catalog reference for larger external movement joints and is typically selected when the project requires a broader profile and stronger continuity at the joint face.
Yes. It is commonly used in reservoirs, tanks, basements, tunnels, and other structures where the external joint detail must remain watertight under sustained moisture exposure.
It should be installed along the external joint face with careful attention to surface preparation, alignment, anchorage, and coordination with the surrounding waterproofing system, sealants, and termination details.
DV Series PVC Waterstop is a dumbbell-profile internal construction joint waterstop used in reinforced concrete structures where a continuous watertight seal is needed across movement joints.
SV Series PVC Waterstop is an internal construction joint waterstop used in reinforced concrete structures where a continuous barrier is required across a non-moving construction joint.
SO Series PVC waterstop is an internal expansion joint waterstop for reinforced concrete structures where a continuous watertight barrier is required across movement joints. The center-bulb profile is embedded centrally within the concrete pour and flexes to accommodate expansion, contraction, and shear displacement along the joint line.
