Supra Expert
Supra Expert is Mulco’s professional exterior sealant, built for Canadian temperature swings with strong adhesion and lasting flexibility on windows, doors and siding. It guns smoothly in the cold, tools cleanly and holds its colour. A Quebec-made staple offered in an unusually wide colour range.
Made by Mulco
Mulco offers a wide range of high-performance sealants for both indoor and outdoor jobs. With a full selection of formulas and colours available, it’s easy to find the right product for your project.
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
Other general-purpose sealants we carry
Same type of product from other manufacturers, all supplied through our branches. Our specialists can help match movement capability, colour and substrate.
Nuflex 180
Nuflex 180 is a versatile, painter-friendly sealant from Canadian manufacturer Nuco, used across interior finishing and general construction sealing.
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Tremco 830 Sealant
Tremco 830 is TREMPRO 830+, a one-part thermoplastic elastomeric sealant for glazing and siding that seals wood, PVC and aluminum windows and doors.
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Sika TX1
Sika TX1 is a versatile, high-tack elastic sealant and adhesive for interior and exterior bonding and sealing on most common substrates.
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Titebond WeatherMaster
Titebond WeatherMaster is a premium elastomeric sealant that bonds to almost any building material, wet or dry, and can be applied in a wide temperature range.
View productDifferent chemistry, same job
These are often specified for similar applications. Check the data sheet or ask your branch to confirm they suit your joint.
Alex Plus
Alex Plus is the acrylic latex caulk plus silicone that finishers have trusted for decades: easy gunning, water cleanup, paintable in about 30 minutes.
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DOWSIL 795
DOWSIL 795 is one of the most specified silicone building sealants in North America, equally at home in structural glazing and weatherproofing joints.
View productSikaflex NP1
NP1 may be the most recognized name in single-component polyurethane sealants: gun-grade, elastomeric and adhered to nearly everything on a construction site.
View productNot sure which sealant fits your joint? Tell us the substrates, joint size and expected movement and a product specialist will recommend one.
Ask a specialist