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Adheseal PU15 Polyurethane AdhesiveVendor:
For perimeter window sealing, precast concrete panels, and joint connections requiring high durability, Adheseal PU15 Polyurethane Adhesive is a low-modulus elastomeric sealant and adhesive. It accommodates significant thermal and structural movement, curing via atmospheric moisture to create a permanently flexible, dustproof, and waterproof seal...- From $11.99
- From $11.99
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Adheseal PU25 Polyurethane AdhesiveVendor:
For expansion joints, precast panels, and structural connections requiring reliable elastomeric movement, PU25 Polyurethane Adhesive provides a highly flexible seal that accommodates up to 25% joint movement. Tested to AS/NZS 4020 for potable water contact and AS1530.3 for low ignitability, this medium-modulus sealant is...
- From $11.12
- From $11.12
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Adheseal PU50 Polyurethane SealantVendor:
Adheseal PU50 is a high-modulus polyurethane sealant and adhesive for demanding construction joints and flexible bonding where toughness and movement resistance matter. With Shore A 45 hardness and ±25% movement capability, it is particularly suited to anti-pick public-area joints, expansion joints and other applications...
- From $14.96
- From $14.96
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Everflex PU240 Polyurethane Adhesive and SealantVendor:
For joint sealing and structural bonding where vibration, mechanical wear, or water exposure cause standard sealants to fail, Everflex PU240 Polyurethane Adhesive and Sealant provides a high-strength, flexible joint. This high-modulus, moisture-curing polyurethane formulation is pick-resistant and accommodates joint movement up to ±25% in...
- From $11.74
- From $11.74
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Adheseal Megaprene 40GG Polyurethane SealantVendor:
For expansion and connection joints in tilt-up panels, pavement slabs, and window frames where high movement and weathering resistance are required, Adheseal Megaprene 40GG Polyurethane Sealant is a single-component, moisture-curing joint sealant that accommodates +/- 25% joint movement. It cures to form a tough,...
- From $11.33
- From $11.33
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Sikaflex Pro Polyurethane Sealant 600ml SausagesVendor:
For movement and connection joints in concrete and masonry facades, Sikaflex PRO is a one-component, moisture-curing polyurethane sealant. It provides a reliable seal for expansion joints on porous substrates and is suitable for both indoor and outdoor general sealing applications, including potable water systems...- From $16.48
- From $16.48
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Sikaflex Pro Polyurethane Sealant 300ml CartridgesVendor:
For movement and connection joints on concrete and masonry facades, Sikaflex Pro Polyurethane Sealant 300ml Cartridges provides a highly elastic, moisture-curing seal that accommodates joint shifting without losing adhesion. This one-part polyurethane sealant is formulated for connection joints on porous substrates and general sealing...
- From $241.80
- From $241.80
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Sikaflex 11 FC + Polyurethane Adhesive and SealantVendor:
For horizontal and vertical joints that experience physical movement, or assembly jobs requiring a direct bond between concrete, masonry, stone, ceramic, wood, metal, or glass, Sikaflex 11 FC + Polyurethane Adhesive and Sealant provides a single-component, elastic polyurethane barrier and adhesive. Formulated with i-Cure...
- From $277.80
- From $277.80
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Sikaflex Construction AP+ Polyurethane SealantVendor:
For movement and connection joints on porous substrates and general indoor or outdoor sealing, Sikaflex Construction AP+ provides a flexible, moisture-curing barrier. This polyurethane sealant manages joint movement on high-exposure facades, concrete structures, and metal connections without sagging or losing its seal. How it...
- $311.80
- $311.80
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Bostik Seal 'N' Flex One P390 Polyurethane Sealant 600ml - BlackVendor:
For expansion joints in precast panels, tilt-up concrete, brickwork, and fibre cement sheet cladding, Seal 'N' Flex One P390 Polyurethane Sealant 600ml provides a highly flexible, low-modulus barrier that accommodates joint movement without pulling away from the substrate. It is acoustic rated and meets...- From $322.60
- From $322.60
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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:
For expansion joints in precast and tilt-up panels, brickwork, concrete, and fibre cement sheet, Seal 'N' Flex One P390 Polyurethane Sealant 300ml provides a Class-A joint seal that accommodates high-movement thermal cycles. It cures to a tough, flexible barrier that handles constant contraction and...
- $355.80
- $355.80
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Grey
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White
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Bostik Seal ‘N’ Flex One Plus P590 Polyurethane Sealant 300mlVendor:
For expansion and construction joints in precast panels, concrete cladding, and window installations where joint movement causes standard sealants to shear or pull away, Seal ‘N’ Flex One Plus P590 Polyurethane Sealant 300ml provides a low-modulus, high-movement barrier. This polyurethane formulation cures bubble-free—even on...
- $238.80
- $238.80
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Bostik Seal ‘N’ Flex One Plus P590 Polyurethane Sealant 600mlVendor:
For sealing expansion and construction joints in precast panels, insitu concrete, brickwork, and metal cladding, Bostik Seal ‘N’ Flex One Plus P590 provides a low-modulus polyurethane seal that accommodates joint movement without tearing or pulling away from the substrate. Joint movement and elasticity This...
- From $322.60
$310.60- From $322.60
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Bostik Fireban One Polyurethane SealantVendor:
For joints in insitu concrete, precast panels, blockwork, plasterboard, and fiber cement sheet requiring fire or acoustic certification, Bostik Fireban One Polyurethane Sealant provides up to a 4-hour fire rating under AS 1530.4-2014 and AS 4072.1-2005. This Australian-made, one-part intumescent sealant cures to form...
- From $16.73
- From $16.73
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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.