Description
SwellMax Waterstop PLUS – Advanced Bentonite Waterbar for Concrete Joints
SwellMax Waterstop PLUS is a high-performance bentonite-based waterbar with a unique protective coating, preventing premature swelling for up to 3 days. Engineered to stop water ingress through non-movement joints in reinforced concrete structures, this waterbar ensures a long-lasting and secure seal.
Key Features & Benefits
✔ Independently tested for 7 Bar of water pressure resistance
✔ Special protective coating prevents premature swelling for up to 3 days
✔ Suitable for non-movement construction joints in reinforced concrete
✔ WRAS Approved – Safe for use in potable water applications
✔ Up to 500% swelling capacity for maximum water-tight performance
✔ Can be installed using adhesive or fixing rail
✔ Ideal for vertical & horizontal applications
✔ No sticky protection tape needed before use
✔ Durable – Swelling and shrinking process lasts for decades
Applications
✅ Precast concrete wall panel systems
✅ Shield-driven tunnels, such as subways
✅ Water supply & sewage systems
✅ Basement concrete slabs
✅ Vertical and horizontal concrete joints
Why Choose SwellMax Waterstop PLUS?
With its innovative delay-coating technology, SwellMax PLUS prevents premature activation, ensuring precise and controlled expansion. It provides a robust, flexible, and long-term solution for waterproofing non-movement concrete joints in various construction applications.
🔹 Order now for next-day UK delivery! 🚛💧
TDS
TDS SwellMax Waterstop WPTDS26 2019 03
Details
Product Description | SwellMAX Waterstop |
Product Code | SWELLMAXPLUS20 |
Packaging and Size | 20mm x 25mm |
Coverage | 30 m (each pack contains 4 x 5 m rolls) |
Storage | Store in dry conditions, protected from direct sunlight, forst and water, in temperatures > 5°C and < 70°C. Please note once wet this product will swell and will not return to original size. |
Life Expectancy | 3 years when stored correctly. |
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Security

You may also be interested in

Trade Customer?
Get all the benefits of being a trade customer by signing up for an account
- Monthly Trade Discount Codes
- Dedicated technical support team
- Certified hands-on training courses