Airtight Building

Sustainable sealing products for airtight and passive construction.

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Seal-it® 315 FACADE-LM

Seal-it® 315 FACADE-LM is a highly elastic, durable, high-quality sealant for expansion joints in façades and floors, that is based on hybrid technology and moisture-cures into a durable rubber that retains its high elasticity.

Seal-it® 330 SPRAYSEAL

Seal-it® 330 SPRAYSEAL is a durable, airtight, sprayable and brushable sealant and repair product for airtight and seamless sealing of connections, and protection and repair of building components, that is based on hybrid technology and moisture-cures into a durable rubber that retains its elasticity.

Seal-it® 331 HYBRI-COAT

Seal-it® 331 HYBRI-COAT is an elastic, airtight, durable and high-quality seal coating that can be smoothed with a brush, is based on hybrid technology and moisture-cures into a durable non-shrink membrane with high mechanical strength.

Seal-it® 380 FOIL-BOND

Seal-it® 380 FOIL BOND is a high-quality, professional assembly adhesive, based on Hybrid technology, that is specifically intended for bonding plastic films and vapour control layers. The adhesive cures through humidity to a durable, self-adhesive rubber.


Seal-it® 430 HYBRI-FOAM is een zeer flexibel, luchtdicht en hoog isolerend 1K isolatie- en montageschuim op basis van hybride technologie. Het schuim is isocyanaatvrij (0% MDI) en veilig in gebruik. Een opleidingsplicht/ speciale training is dan ook niet van toepassing.

Seal-it® 450 PUR CLEANER

Seal-it® 450 PUR CLEANER is an effective and fast-acting cleaning product to remove/dissolve fresh/uncured PU foam stains and residues. Also suitable for cleaning and rinsing out PU guns.

Seal-it® 471 PU-FOAM FLEX

Seal-it® 471 PU-FOAM FLEX is a highly flexible, airtight and highly insulating 1k insulation and installation foam, specially designed for flexible and airtight sealing and filling of joints, adjustment and installation spaces, seams and connections between various building components, and that moisture-cures into a durable foam that retains its flexibility.

Seal-it® 510 CLEANER

Seal-it® 510 CLEANER is a non-aggressive and effective cleaning product for degreasing various surfaces, specially developed to improve adhesion of glues, sealants, paints, coatings and lacquers.

Seal-it® 520 PRIMER

Seal-it® 520 PRIMER is a high-quality, extra-durable adhesive primer for sealants and adhesives that is specially developed for porous surfaces/materials and that moisture-cures into a durable membrane.

Seal-it® 565 PE TAPE

Seal-it® 565 PE TAPE is a strong self-adhesive glazing tape, developed specifically for obtaining correct joint dimensions with top sealing in glazing constructions.

Seal-it® 575 PRESS-BAND

Seal-it® 575 PRESS-BAND is a high-quality, open-cell polyurethane foam tape for joint sealing, that retains its elasticity and that is impregnated with fire-retardant and environmentally friendly acrylic resin, for a durable joint seal that is resistant to driving rain.

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Click on one of the Seal-it® or Cover-it® categories for extensive product information on applications, properties, the standard product line, application conditions, test reports, certificates and technical and safety data sheets.