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OnBuy.com£14.02Visit shop (White) Siroflex Polyflex Hm Polyurethane Sealant - 300Ml 5032822003766
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The Siroflex Polyflex HM Polyurethane Sealant in White is designed for professionals and DIY enthusiasts needing a versatile and durable sealant for various construction and repair tasks. Its key benefit is its multi-use capability, offering waterproofing, sealing, gluing, mounting, and anchoring on numerous substrates, while a potential caveat is its specific polyurethane formulation which may require specific application knowledge for optimal results. This 300ml sealant is ideal for filling cracks, joints, and gaps in building and metal constructions, and is suitable for both interior and exterior applications due to its UV and weather resistance and low odour.
| Colour | White |
|---|---|
| Model Part Number | SXPUHM300W |
| Brand | Siroflex |
While it is waterproof, it is not specifically designed for continuous underwater immersion applications. It is best suited for sealing joints that may be exposed to moisture or weather.
Curing time varies depending on temperature, humidity, and bead size, but typically it skins over in about 30-60 minutes and fully cures within 24-48 hours.
Yes, it is suitable for sealing joints around windows and doors in building construction, providing a durable and weatherproof seal.
Unopened cartridges typically have a shelf life of 12-18 months when stored in a cool, dry place, away from direct sunlight and extreme temperatures.
It adheres to many common building plastics, but it is always recommended to test on a small, inconspicuous area first to ensure compatibility and adhesion.
Uncured sealant can be wiped away with a damp cloth. For stubborn residue, a solvent recommended for polyurethane might be necessary, but always test in an inconspicuous area first.
Polyflex HM is a polyurethane-based sealant known for its strong adhesion, durability, and flexibility, making it suitable for structural joints and applications where painting over is desired.
Ensure the cartridge is properly seated in the sealant gun and the nozzle tip has been cut open sufficiently. Check if the internal seal of the cartridge has been broken.
Verify that the surface is clean, dry, and free from dust, oil, or other contaminants. Lightly abrading the surface may improve adhesion on smooth materials.
Maintain a consistent speed and angle while applying the sealant. Practice on a scrap piece of material. Use a smoothing tool to create a uniform finish immediately after application.
This can occur in very humid conditions or if the sealant was applied too thickly. Ensure adequate ventilation and refer to the product's specified curing time, which can vary with temperature and humidity.
Setup: To use the Siroflex Polyflex HM Polyurethane Sealant, you will need a standard sealant gun. Cut the nozzle tip at an angle to achieve the desired bead size. Puncture the inner seal before loading the cartridge into the gun. Apply consistent pressure to the trigger to dispense the sealant.
Compatibility: This sealant is compatible with a wide range of building materials including most metals, wood, concrete, and some plastics. It is recommended to test adhesion on a small, inconspicuous area first, especially on sensitive materials or painted surfaces. Ensure surfaces are clean, dry, and free from dust, grease, and old sealant.
Care: For best results, apply in temperatures between 5°C and 30°C. Smooth the applied bead immediately after application using a wet tool or finger. For cleanup of excess uncured sealant, use a damp cloth or appropriate solvent (refer to product-specific recommendations). Once cured, the sealant can be painted over with most water-based and solvent-based paints. Cured sealant can be removed mechanically.
