
SX Mighty Strength MS Polymer - Multi-Purpose Adhesive & Sealant
by Siroflex
£7.18
MPNSXMSP290W
Prices updated 19 Mar 2026
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DIY Refurb UK
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Product Description
High-Performance Multi-Purpose Adhesive & Sealant for Interior and Exterior Applications. SX Mighty Strength MS Polymer is a professional-grade, solvent-free adhesive and sealant based on advanced MS Polymer technology. It delivers exceptional grab strength, flexibility, and durability on a wide range of building materials. Suitable for both bonding and sealing applications, it adheres to damp surfaces, is UV-resistant, and can be used internally and externally for structural joints, perimeter seals, panel bonding, and general construction tasks.. Key Features & Benefits. Ultimate Bonding Strength: High initial grab and permanent elasticity for secure fixing on most construction substrates.. Multi-Use Functionality: Acts as both an adhesive and a sealant — ideal for bonding panels, trims, battens, and sealing joints.. Adheres to Damp Surfaces: Can be applied to slightly wet substrates — ideal for unpredictable site conditions.. UV & Weather Resistant: Suitable for internal and external applications with excellent ageing properties.. Solvent & Isocyanate-Free: Low VOC and environmentally safe for use in occupied or enclosed spaces.. Product Details. Technology: Modified Silane (MS Polymer). Colour: White, Grey, or Black (depending on variant). Packaging: 290ml or 600ml foil sausages. Skin Time: Approx. 10 minutes. Application Temperature: +5°C to +40°C. Resistance Temperature: -40°C to +90°C. Movement Capability: ±25%. SKU: SXMS290 / SXMS600. Application Instructions. Preparation: Ensure surfaces are clean, sound, and free from grease, oil, or old sealant. For best adhesion, clean with a suitable solvent.. Apply Product: Cut nozzle to desired bead size and apply using a standard or pneumatic sealant gun.. Tooling: Smooth sealant with a spatula or wetted finger within the skin time.. Curing: Full cure occurs at approx. 2–3mm per 24 hours depending on humidity and substrate.. Limitations. Not suitable for PE, PP, PTFE, or bituminous surfaces.. Do not apply to surfaces with standing water or high alkalinity without compatibility testing.. Health & Safety. Solvent-free and low hazard. Use standard PPE such as gloves and eye protection during application. Refer to the Safety Data Sheet (SDS) for full health and safety information.
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