{"product_id":"ledar-ms728-room-temperature-curing-sealant","title":"Ledar MS728 Room-Temperature Curing Sealant","description":"\u003cp\u003e MS728 is a single-component MS polymer sealant that cures at room temperature. Its curing speed depends on ambient temperature and humidity, with faster skin formation under high temperature and humidity, and slower curing under low temperature or low humidity. The final cure time is also affected by the sealant thickness. \u003c\/p\u003e\n\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0704\/1558\/1340\/files\/Ledar_MS3937_Modified_Silane_Elastic_Adhesive_Sealant.png?v=1766126093\" alt=\"\"\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e Low odor, low VOC, free of isocyanates, PVC, and organic solvents, safe to use.\u003c\/li\u003e\n\n \u003cli\u003eUV-resistant and durable in extreme temperatures, with a service life exceeding 20 years.\u003c\/li\u003e\n\n\u003cli\u003e Minimal shrinkage after curing, smooth and glossy surface without depressions.\u003c\/li\u003e\n\n\u003cli\u003e Can be used in bridge suspension coating applications, compliant with main cable corrosion protection standards (JT\/T694-2007).\u003c\/li\u003e\n\n\u003cli\u003e Medium modulus with high elongation and excellent rebound properties.\u003c\/li\u003e\n\n\u003cli\u003e Compatible with various porous and non-porous substrates, paintable and sandable.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cbr\u003e \u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e Elastic sealing for joints on stainless steel, aluminum, coated surfaces and more.\u003c\/p\u003e\n\n\u003cp\u003e Excellent adhesion to fluorocarbon paints, epoxy primers and phosphating primers.\u003c\/p\u003e\n\n\u003cp\u003e Suitable for brushing, injection, caulking, surface sealing or pre-made tape and reinforced fabric wrapping.\u003c\/p\u003e\n\n\u003cp\u003e\u003cbr\u003e \u003cstrong\u003eTypical Use Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e Bridge main cable systems: sealing cable loop joints, butt joints and saddle clamp grooves.\u003c\/p\u003e\n\n\u003cp\u003e Metal structures, ventilation hoods, ducts, warehouses, modular buildings.\u003c\/p\u003e\n\n \u003cp\u003eWelds, connection points, galvanized sheets, rivets, bolts and anti-corrosion sealing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cbr\u003e \u003cstrong\u003eUsage Guidelines\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e Surfaces must be clean, dry and free from dust and oil.\u003c\/li\u003e\n\n\u003cli\u003e Oily substrates are unsuitable for direct sealing.\u003c\/li\u003e\n\n\u003cli\u003e Rusted or corroded metal surfaces should be treated before application.\u003c\/li\u003e\n\n\u003cli\u003e Always test adhesion before large-scale use due to environmental and material differences.\u003c\/li\u003e\n\n\u003cli\u003e Recommended application temperature: 15°C – 40°C. Cold conditions may increase extrusion resistance.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e \u003c\/p\u003e\n\n\u003ctable width=\"100%\" style=\"width: 99.9987%; height: 274.166px;\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003e \u003cstrong\u003eProperty\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e \u003cstrong\u003eSpecification\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003e \u003cstrong\u003eTest Method\u003c\/strong\u003e \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 39.1667px;\"\u003e\n\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 39.1667px;\"\u003e Appearance\u003c\/td\u003e\n\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 39.1667px;\"\u003e Black \/ White \/ Grey, uniform ice-cream paste\u003c\/td\u003e\n\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 39.1667px;\"\u003e Visual \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003e Density\u003c\/td\u003e\n\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e ~1.41 g\/cm³\u003c\/td\u003e\n\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003e GB\/T533 \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003e Non-volatile Content\u003c\/td\u003e\n\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e ≥97%\u003c\/td\u003e\n\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003e HB6743 \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003e Working Time\u003c\/td\u003e\n\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e 0.5-2 h\u003c\/td\u003e\n\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003e Touch Test \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003e Skin Time\u003c\/td\u003e\n\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e 8-24 h\u003c\/td\u003e\n\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003e HB5242 \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003e Slump\u003c\/td\u003e\n\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e ≤10 mm\u003c\/td\u003e\n\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003e HB5243 \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003e Tensile Strength\u003c\/td\u003e\n\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e ≥2.5 MPa\u003c\/td\u003e\n\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003e HB5246 \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003e Elongation at Break\u003c\/td\u003e\n\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e ≥280%\u003c\/td\u003e\n\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003e GB\/T528 \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 39.1667px;\"\u003e\n\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 39.1667px;\"\u003e Heat Aging (120°C for 7 days)\u003c\/td\u003e\n\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 39.1667px;\"\u003e Tensile ≥2.0 MPa, Elongation ≥150%\u003c\/td\u003e\n\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 39.1667px;\"\u003e HB5246\/HB5247 \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003e Adhesion\u003c\/td\u003e\n\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e Phosphate\/Epoxy primer ≥4 kN\/m\u003c\/td\u003e\n\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003e HB5249 \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003e Corrosion Resistance\u003c\/td\u003e\n\n \u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003eImmersion in 3% NaCl at 60°C for 20d – no corrosion or degradation\u003c\/td\u003e\n\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003e HB5273\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003ePackaging\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e 300ml cartridge\u003c\/li\u003e\n\n\u003cli\u003e 570ml sausage\u003c\/li\u003e\n\n\u003cli\u003e 20L drum\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cbr\u003e \u003cstrong\u003eStorage \u0026amp; Shelf Life:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e Store in a cool, dry place at 10–25°C (max 45°C)\u003c\/p\u003e\n\n\u003cp\u003e 12-month shelf life.\u003c\/p\u003e\n\n\u003cp\u003e Avoid extreme heat or freezing\u003c\/p\u003e\n\n\u003cp\u003e Keep original packaging sealed\u003c\/p\u003e","brand":"Ever Trust Tools","offers":[{"title":"Room Temperature Curing \/ MS Polymer \/ Medium","offer_id":45838280949916,"sku":null,"price":0.0,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/1558\/1340\/files\/Ledar_MS3937_Modified_Silane_Elastic_Adhesive_Sealant.png?v=1766126093","url":"https:\/\/trading.evertrusttools.com\/products\/ledar-ms728-room-temperature-curing-sealant","provider":"Ever Trust Tools","version":"1.0","type":"link"}