{"product_id":"ledar-ms728-room-temperature-curing-sealant","title":"Ledar MS728 Room-Temperature Curing Sealant","description":"\u003cp\u003eMS728 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\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\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLow odor, low VOC, free of isocyanates, PVC, and organic solvents, safe to use.\u003c\/li\u003e\n\u003cli\u003eUV-resistant and durable in extreme temperatures, with a service life exceeding 20 years.\u003c\/li\u003e\n\u003cli\u003eMinimal shrinkage after curing, smooth and glossy surface without depressions.\u003c\/li\u003e\n\u003cli\u003eCan be used in suspension bridge coating applications, compliant with main cable corrosion protection standards (JT\/T694-2007).\u003c\/li\u003e\n\u003cli\u003eMedium modulus with high elongation and excellent rebound properties.\u003c\/li\u003e\n\u003cli\u003eCompatible with various porous and non-porous substrates, paintable and sandable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eElastic sealing for joints on stainless steel, aluminum, coated surfaces and more.\u003c\/p\u003e\n\u003cp\u003eExcellent adhesion to fluorocarbon paints, epoxy primers and phosphating primers.\u003c\/p\u003e\n\u003cp\u003eSuitable for brushing, injection, caulking, surface sealing or pre-made tape and reinforced fabric wrapping.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eTypical Use Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBridge main cable systems: sealing cable loop joints, butt joints and saddle clamp grooves.\u003c\/p\u003e\n\u003cp\u003eMetal structures, ventilation hoods, ducts, warehouses, modular buildings.\u003c\/p\u003e\n\u003cp\u003eWelds, connection points, galvanized sheets, rivets, bolts and anti-corrosion sealing.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eUsage Guidelines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSurfaces must be clean, dry and free from dust and oil.\u003c\/li\u003e\n\u003cli\u003eOily substrates are unsuitable for direct sealing.\u003c\/li\u003e\n\u003cli\u003eRusted or corroded metal surfaces should be treated before application.\u003c\/li\u003e\n\u003cli\u003eAlways test adhesion before large-scale use due to environmental and material differences.\u003c\/li\u003e\n\u003cli\u003eRecommended application temperature: 15°C – 40°C. Cold conditions may increase extrusion resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 99.9987%; height: 274.166px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003e\u003cstrong\u003e Property\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003e\u003cstrong\u003eTest Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1667px;\"\u003e\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 39.1667px;\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 39.1667px;\"\u003eBlack \/ White \/ Grey, uniform ice-cream paste\u003c\/td\u003e\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 39.1667px;\"\u003eVisual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003eDensity\u003c\/td\u003e\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e~1.41 g\/cm³\u003c\/td\u003e\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003eGB\/T533\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003eNon-volatile Content\u003c\/td\u003e\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e≥97%\u003c\/td\u003e\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003eHB6743\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003eWorking Time\u003c\/td\u003e\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e0.5-2 h\u003c\/td\u003e\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003eTouch Test\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003eSkin Time\u003c\/td\u003e\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e8-24 h\u003c\/td\u003e\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003eHB5242\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003eSlump\u003c\/td\u003e\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e≤10 mm\u003c\/td\u003e\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003eHB5243\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003eTensile Strength\u003c\/td\u003e\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e≥2.5 MPa\u003c\/td\u003e\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003eHB5246\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003eElongation at Break\u003c\/td\u003e\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003e≥280%\u003c\/td\u003e\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003eGB\/T528\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1667px;\"\u003e\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 39.1667px;\"\u003eHeat Aging (120°C  7d)\u003c\/td\u003e\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 39.1667px;\"\u003eTensile ≥2.0 MPa, Elongation ≥150%\u003c\/td\u003e\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 39.1667px;\"\u003eHB5246\/HB5247\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003eAdhesion\u003c\/td\u003e\n\u003ctd style=\"width: 41.0412%; text-align: center; height: 19.5833px;\"\u003ePhosphate\/Epoxy primer ≥4 kN\/m\u003c\/td\u003e\n\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003eHB5249\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 33.5421%; text-align: center; height: 19.5833px;\"\u003eCorrosion Resistance\u003c\/td\u003e\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\u003ctd style=\"width: 25.1366%; text-align: center; height: 19.5833px;\"\u003eHB5273\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e300ml cartridge\u003c\/li\u003e\n\u003cli\u003e570ml sausage\u003c\/li\u003e\n\u003cli\u003e20L drum\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eStorage \u0026amp; Shelf Life:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStore in a cool, dry place at 10–25°C (max 45°C)\u003c\/p\u003e\n\u003cp\u003e12-month shelf life.\u003c\/p\u003e\n\u003cp\u003eAvoid extreme heat or freezing\u003c\/p\u003e\n\u003cp\u003eKeep 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:\/\/www.evertrusttools.com\/zh\/products\/ledar-ms728-room-temperature-curing-sealant","provider":"Ever Trust Tools","version":"1.0","type":"link"}