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Adheseal PU15 Polyurethane AdhesiveVendor:
Use Adheseal PU15 for flexible, durable sealing of movement and connection joints up to ±30% and as an adhesive, offering excellent adhesion and weather resistance for confident, long-term performance.- From $11.99
- From $11.99
- Unit price
- per
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Adheseal PU25 Polyurethane AdhesiveVendor:
Use Adheseal PU25FC for flexible sealing and bonding of movement joints in construction, marine, and manufacturing. It offers ±25% movement, fast curing at 3mm per day, AS/NZS 4020 potable water suitability, and is UV stable.
- From $11.12
- From $11.12
- Unit price
- per
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Adheseal PU50 Polyurethane SealantVendor:
Use Adheseal PU50FC for high-strength, flexible structural bonding and demanding sealing jobs. It offers Shore A 45 hardness for anti-pick applications, withstands +/- 25% joint movement, and cures at 3mm per 24 hours.
- From $14.96
- From $14.96
- Unit price
- per
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Everflex PU240 Polyurethane Adhesive and SealantVendor:
Use Adheseal PU-240 for high-strength, flexible sealing and bonding in demanding construction and marine applications. With +/- 25% movement capability and 35 Shore A hardness, it ensures a durable, waterproof, and abrasion-resistant joint.
- From $11.74
- From $11.74
- Unit price
- per
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Adheseal Megaprene 40GG Polyurethane SealantVendor:
Flexible polyurethane construction sealant for movement joints, façade sealing, and waterproof bonding applications.
- From $11.33
- From $11.33
- Unit price
- per
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Sikaflex Pro Polyurethane Sealant 600ml SausagesVendor:
Use Sikaflex PRO for elastic movement and connection joints in concrete and masonry facades. It handles ±25% movement, is AS/NZS 4020 approved for potable water, and ensures durable, weather-resistant sealing.- From $16.48
- From $16.48
- Unit price
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Sikaflex Pro Polyurethane Sealant 300ml CartridgesVendor:
Use Sikaflex PRO for elastic sealing of movement and connection joints in concrete and masonry, offering ±25% movement capability and potable water approval for reliable performance.
- From $241.80
- From $241.80
- Unit price
- per
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Sikaflex 11 FC + Polyurethane Adhesive and SealantVendor:
Sikaflex 11 FC+ is a single-part polyurethane adhesive and sealant that bonds concrete, masonry, wood, metal, glass, and ceramic while handling vertical and horizontal joint sealing. It suits facade joints, perimeter sealing, civil construction, and mixed-substrate bonding where you need movement capacity and a sandable, overpaintable finish.
- From $277.80
- From $277.80
- Unit price
- per
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Sikaflex Construction AP+ Polyurethane SealantVendor:
Use Sikaflex Construction AP for reliable, elastic sealing of movement and connection joints, particularly on porous substrates. Its ±25% movement capability, non-sag application, and paintability ensure durable, professional finishes for facades and general construction.
- $311.80
- $311.80
- Unit price
- per
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Bostik Seal 'N' Flex One P390 Polyurethane Sealant 600ml - BlackVendor:
Use Bostik Seal N Flex One P390 for reliable sealing of construction and expansion joints that demand ±50% movement. It's a low modulus, one-component polyurethane sealant, acoustic rated and approved for potable water contact, preventing joint failure in dynamic environments.- From $322.60
- From $322.60
- Unit price
- per
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Black
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Grey
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White
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Bostik Seal 'N' Flex One P390 Polyurethane Sealant 300ml - GreyVendor:
Use Bostik Seal N Flex One P390 for reliable sealing of construction and expansion joints that demand ±50% movement. It's a low modulus, one-component polyurethane sealant, acoustic rated and approved for potable water contact, preventing joint failure in dynamic environments.
- $355.80
- $355.80
- Unit price
- per
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Grey
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White
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Bostik Seal ‘N’ Flex One Plus P590 Polyurethane Sealant 300mlVendor:
Use Bostik Seal 'N' Flex One Plus P590 for construction and expansion joints needing high movement capability. It offers +100% / -50% joint movement with bubble-free curing and AS/NZS 4020:2018 potable water certification.
- $238.80
- $238.80
- Unit price
- per
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Bostik Seal ‘N’ Flex One Plus P590 Polyurethane Sealant 600mlVendor:
Use Bostik Seal 'N' Flex One Plus P590 for construction and expansion joints needing high movement capability. It offers +100% / -50% joint movement with bubble-free curing and AS/NZS 4020:2018 potable water certification.
- From $322.60
$310.60- From $322.60
- Unit price
- per
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Bostik Fireban One Polyurethane SealantVendor:
Use Bostik Fireban One for fire-rated and acoustic sealing of construction joints. It offers up to 4 hours of fire resistance, 50% joint movement capability, and excellent durability, ensuring compliant and lasting performance.
- From $16.73
- From $16.73
- Unit price
- per
Frequently Asked Questions
Can I paint over polyurethane sealant?
Yes. Most polyurethane sealants accept acrylic, oil, and rubber-based paints once fully cured. Rigid or non-flexible paints may crack when the joint moves. Wait at least seven days before painting and test on a small area first.
What movement capability do polyurethane sealants offer?
Standard polyurethane sealants handle ±25% joint movement. Mid-range products reach ±35%, and low-modulus grades from Bostik handle ±50%. The Bostik Seal N Flex One Plus P590 offers +100%/−50% for high-movement expansion joints.
Can I use polyurethane sealant in a swimming pool?
No. Polyurethane sealants are not designed for chlorinated water or permanent immersion. They also must not be used on bituminous surfaces, natural rubber, or EPDM. Choose a pool-rated product for underwater applications.
How long does polyurethane sealant take to cure?
Most polyurethane sealants cure at 3 mm per 24 hours at standard temperature. Full cure takes seven to fourteen days depending on joint depth, humidity, and product grade. Do not apply paint until the sealant is fully cured.
Are polyurethane sealants safe for potable water contact?
Yes. The Bostik Seal N Flex P390, Adheseal PU25, and Sikaflex Pro carry the AS/NZS 4020 potable water certification. Confirm the product data sheet before use with drinking water systems, as certification varies between formulations.