CONQOR 47B – Delayed Swell Gasket & Waterstop

CONQOR 47B waterstop (formerly Superswell 47B) is for waterproofing concrete basements, pools, precast infills.

A controlled hydrophillic swellable gasket that expands in a delayed fashion when exposed to moisture, forming a seal in concrete joints.

Can be exposed to moisture for days before the swelling starts. No need to worry about a shower of rain destroying newly installed water stops.


Delayed expansion waterstop

CONQOR 47B WATERSTOP is a unique sealing gasket that expands in a delayed fashion when exposed to moisture, forming a compression seal in concrete joints

Key benefits
Built-in delay system to stop premature expansion

Allows concrete to gain full strength before expansion, and then the butyl hydrophilic polymer based gasket activates after approximately 5-10 days of constant exposure to water.

Does not lose integrity over time in water

Unaffected by repeated wet and dry cycles. This gasket has the structural integrity of a rubber-based sealant, the features of a butyl sealant, as well as the ability to expand to create a SELF-HEALING JOINT MATERIAL.

Bonds to both concrete surfaces

Very easy to handle and install. No on-site welding required as with PVC waterstops. Excellent adhesion, can be bedded into wet concrete and is suitable for use in horizontal and vertical joints.


All the details you need.


Downloadable product information, technical data sheets, MSDS and architectural specifications.


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We understand that choosing the correct solution and type of product is essential for the success of any project. MARKHAM GLOBAL has a technical support team with many years of concrete industry experience and successful project applications and are ready to help you find the right solution for your application.

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