{"product_id":"alchimica-hyperdesmo®-s-wr","title":"Alchimica Hyperdesmo® S-WR Low VOC Polyurethane Waterproofing Membrane","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px\"\u003e\n\u003cstrong\u003eSummary:\u003c\/strong\u003e\n\u003cp\u003eHyperdesmo® S-WR is a low VOC single-component polyurethane (PU) liquid waterproofing membrane by Alchimica. Low solvent formula (VOC only 73 g\/L), non-hazardous for transport (non-IMO). Can be applied by brush, roller or airless spray. Cures to form a highly elastic hydrophobic film with over 1000% elongation, service temperature range -40°C to 80°C. Suitable for foundation walls, roofs (under protective layer), terraces and balconies.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eProduct Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLow VOC formula (73 g\/L), non-hazardous goods (non-IMO), easier transport and storage\u003c\/li\u003e\n\u003cli\u003eSingle-component, moisture-curing — ready to use from the can\u003c\/li\u003e\n\u003cli\u003eHigh elasticity — elongation over 1000%, accommodates substrate movement\u003c\/li\u003e\n\u003cli\u003eHigh solid content, thick film formation, low consumption (minimum 1.5 kg\/m²)\u003c\/li\u003e\n\u003cli\u003eCan be applied on vertical surfaces — excellent thixotropy, no sagging\u003c\/li\u003e\n\u003cli\u003eLow temperature resistance to -40°C, membrane remains flexible\u003c\/li\u003e\n\u003cli\u003eNon-toxic when cured\u003c\/li\u003e\n\u003cli\u003eGood vapour permeability — no moisture build-up under the coating\u003c\/li\u003e\n\u003cli\u003eBonds to various substrates without primer (concrete, fibre cement, mosaic, metal, etc.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFoundation wall waterproofing\u003c\/li\u003e\n\u003cli\u003eRoof waterproofing (under protective layer or tile finish)\u003c\/li\u003e\n\u003cli\u003eTerrace and balcony waterproofing (with protective covering)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eLimitations\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNot recommended for UV-exposed applications (must be under protective layer)\u003c\/li\u003e\n\u003cli\u003eNot recommended for thermo-insulating materials\u003c\/li\u003e\n\u003cli\u003eNot suitable for unsound substrates\u003c\/li\u003e\n\u003cli\u003eNot suitable for swimming pool surfaces or chemically treated water contact\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Data (Liquid Form — Before Application)\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth\u003eProperty\u003c\/th\u003e\u003cth\u003eValue\u003c\/th\u003e\u003cth\u003eTest Standard\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eVOC Content\u003c\/td\u003e\u003ctd\u003e73 g\/L\u003c\/td\u003e\u003ctd\u003e—\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eConsumption\u003c\/td\u003e\u003ctd\u003eMinimum 1.5 kg\/m² (one to two coats)\u003c\/td\u003e\u003ctd\u003e—\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eViscosity\u003c\/td\u003e\u003ctd\u003e3000-6000 cP (25°C)\u003c\/td\u003e\u003ctd\u003eASTM D2196-86\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eSpecific Gravity\u003c\/td\u003e\u003ctd\u003e1.5-1.6 gr\/cm³\u003c\/td\u003e\u003ctd\u003eASTM D1475 \/ ISO 2811\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTechnical Data (Cured Form)\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth\u003eProperty\u003c\/th\u003e\u003cth\u003eValue\u003c\/th\u003e\u003cth\u003eTest Standard\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eService Temperature\u003c\/td\u003e\u003ctd\u003e-40°C to 80°C\u003c\/td\u003e\u003ctd\u003e—\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eHardness\u003c\/td\u003e\u003ctd\u003eShore A 60\u003c\/td\u003e\u003ctd\u003eASTM D2240 \/ ISO R868\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eTensile Strength\u003c\/td\u003e\u003ctd\u003e30 kg\/cm² (3.0 N\/mm²)\u003c\/td\u003e\u003ctd\u003eASTM D412 \/ EN ISO 527-3\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eElongation\u003c\/td\u003e\u003ctd\u003e\u003e 1000%\u003c\/td\u003e\u003ctd\u003eASTM D412 \/ EN ISO 527-3\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eWater Vapour Transmission\u003c\/td\u003e\u003ctd\u003e0.8 gr\/m².hr\u003c\/td\u003e\u003ctd\u003eASTM E96\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCE Certified Performance (EN 1504-2 Surface Protection — Coating)\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth\u003eProperty\u003c\/th\u003e\u003cth\u003eValue\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eCO₂ Permeability\u003c\/td\u003e\u003ctd\u003eSD \u003e 50 m\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eWater Vapour Permeability\u003c\/td\u003e\u003ctd\u003eSD \u003c 5 m (Class I, permeable)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCapillary Absorption\u003c\/td\u003e\u003ctd\u003eW \u003c 0.1 kg\/m².0.5h\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eAdhesion Strength (Pull-off)\u003c\/td\u003e\u003ctd\u003e≥ 1.5 (1.0) N\/mm²\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eAdhesion After Thermal Compatibility\u003c\/td\u003e\u003ctd\u003e≥ 1.5 (1.0) N\/mm²\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eReaction to Fire\u003c\/td\u003e\u003ctd\u003eEuroclass F\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eArtificial Weathering (EN 1062-11)\u003c\/td\u003e\u003ctd\u003eNo change (no blistering, cracking, flaking or colour change)\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eApplication Method\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSurface preparation: high-pressure water cleaning, remove oil, wax, loose material, mould release agents, and cured membranes\u003c\/li\u003e\n\u003cli\u003eFill surface irregularities with polyurethane sealant or cement sand mortar\u003c\/li\u003e\n\u003cli\u003eMixing: low-speed mixer (300 rpm). For spray application, add 5-10% SOLVENT-01\u003c\/li\u003e\n\u003cli\u003eApplication: roller, brush or airless spray (200-250 bar), minimum two coats\u003c\/li\u003e\n\u003cli\u003eRecoat interval not exceeding 48 hours\u003c\/li\u003e\n\u003cli\u003eCleaning: wipe tools with paper first, then clean with SOLVENT-01. Rollers are not reusable\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSubstrate Conditions (Concrete, No Primer Needed)\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHardness: R₂₈ = 15 MPa\u003c\/li\u003e\n\u003cli\u003eMoisture content: W \u003c 10%\u003c\/li\u003e\n\u003cli\u003eRelative humidity: \u003c 90%\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackaging\u003c\/h2\u003e\n\u003cp\u003e4 kg, 22 kg and 200 kg drums\u003c\/p\u003e\n\n\u003ch2\u003eShelf Life\u003c\/h2\u003e\n\u003cp\u003eMinimum 12 months in unopened original container stored in dry conditions at 5-25°C. Use promptly after opening.\u003c\/p\u003e","brand":"Alchimica","offers":[{"title":"Default Title","offer_id":43759196569750,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/hyperdesmo-s-wr.jpg?v=1719569461","url":"https:\/\/wahhingwp.com\/en\/products\/alchimica-hyperdesmo%c2%ae-s-wr","provider":"華興建築防水材料有限公司","version":"1.0","type":"link"}