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Adheseal Hi-Flex Construction Plus MS Polymer SealantVendor:
For expansion joints, perimeter window fixing, and cladding joints where high movement capability is required, Adheseal Hi-Flex Construction Plus MS Polymer Sealant provides a neutral-cure, low-modulus elastomeric seal that accommodates up to 50% joint movement. Based on hybrid MS polymer technology, this single-component sealant...- From $11.77
- From $11.77
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Adheseal Hi-Flex 50 Hybrid MS Polymer SealantVendor:
For sealing construction joints, prefabricated concrete panels, and forming critical bond breakers under waterproofing membranes, Hi-Flex 50 Hybrid MS Polymer Sealant provides primeless adhesion and high movement capacity without the risk of gassing or bubbling, even in high humidity. What it does Hi-Flex 50...
- From $11.77
- From $11.77
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Adheseal Hi-Flex 60 MS polymer AdhesiveVendor:
For high-movement joint sealing and structural component bonding across diverse thermal expansion coefficients, Hi-Flex 60 MS polymer Adhesive is a high modulus hybrid elastomer that provides non-staining, primerless adhesion on most common construction substrates. Free from isocyanates and solvents, this low-odour formula cures via...
- From $13.88
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X'traseal MC-228 Tiling SealantVendor:
For sealing and finishing tile gaps on floors, walls, and countertops where a durable, water- and mildew-proof joint is required, X'traseal MC-228 Tiling Sealant delivers a high-gloss finish that matches the appearance of porcelain. Formulated with nano-tech polymer technology and high-end pigments, this two-part...
- From $15.65
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Frequently Asked Questions
What is MS polymer sealant?
MS polymer sealant combines the weathering resistance of silicone with the paintability and bond strength of polyurethane. It cures by atmospheric moisture, contains no isocyanates or solvents, and adheres to most substrates without primer.
Do I need to prime before applying MS polymer sealant?
No. MS polymer sealants adhere to most building substrates without primer, including concrete, brick, aluminium, powder-coated metals, timber, PVC, and fibreglass. Check the product data sheet for exceptions on lead, copper, and some plastics.
Can MS polymer sealant be painted over?
Yes. MS polymer sealants accept acrylic, oil, and rubber-based paints once cured. Rigid coatings may crack on moving joints. The X-traseal MC-228 tile gap filler cures to a hard finish and is not designed for painting.
Will MS polymer sealant stain natural stone?
No. MS polymer sealants are formulated as non-staining on natural stone, marble, and granite. Unlike some polyurethane sealants, they do not bleed plasticisers into porous substrates. They are also non-corrosive to galvanised steel and aluminium.
What movement capability does MS polymer sealant have?
Most MS polymer sealants handle ±25% joint movement. The Hi-Flex Construction Plus reaches ±50% with 1100% elongation for large facade and window perimeter joints. The X-traseal MC-228 is a rigid tile gap filler with no movement rating.