Willseal 600
Willseal 600 is a pre-compressed, self-expanding foam joint seal that acts as a flexible, breathable and weathertight primary seal in vertical exterior joints, with 50% movement capability in either direction. The high-density polyurethane foam expands to fill the joint, giving an elastic, vapour-permeable seal that stays UV-stable and flexible. It comes in sticks and rolls with pressure-sensitive adhesive on one side, so there is no mixing, masking or priming. Suited to expansion and control joints in precast concrete, masonry, brick, facades and EIFS, and to interior vapour, dust and air control.
Made by Willseal
Willseal pre-compressed foam expansion joint sealants seal building joints watertight while absorbing the movement that would destroy a field-applied sealant. Supplied in factory-sized sticks that install quickly in almost any weather, they suit facade, parapet and other building joints on schedule-driven projects. Willseal is part of the Tremco family of brands.
Where this product fits
- Stocked at or transferred between all six branches
- Volume pricing by the case or pallet
- Product specialists to confirm fit for your application
Technical documents
Download the current technical data sheet for Willseal 600.
Data sheet (PDF)More documents for Willseal 600.
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Other pre-compressed foam joints we carry
Same type of product from other manufacturers, all supplied through our branches. Our specialists can help match movement capability, colour and substrate.
Seismic Colorseal
Seismic Colorseal is the pre-compressed wall expansion joint that made Emseal famous: impregnated foam with a factory-applied silicone face that expands into the joint and stays watertight through huge movement cycles.
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The DSM System brings Emseal’s pre-compressed technology to decks, plazas and horizontal joints that see foot traffic and standing water.
View productEmseal Backerseal
Emseal Backerseal (Emseal 25V) is a pre-compressed, impregnated foam sealant that expands into the joint to form a watertight, UV-stable seal without wet sealant against the weather.
View productOther options for the same job
These solve a similar problem a different way. Check the data sheet or ask your branch to confirm they suit your project.
SJS System
The SJS (Seismic Joint System) handles the big structural gaps: parkade entrances, stadium concourses and buildings designed for serious seismic movement.
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Jeene Joint
The Jeene Joint is a pneumatically installed structural sealing profile that locks into joints under pressure, delivering watertight performance in bridges, stadiums and parking structures.
View productWabo EEJ
Wabo EEJ is a closed-cell foam expansion joint seal that compresses and recovers through thermal cycling while keeping water out.
View productNot sure which joint system fits? Tell us the joint width, movement and location and a product specialist will recommend a system.
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