{"product_id":"西卡sikalastic-702-雙組分防漏膜","title":"Sika Sikalastic 702","description":"\u003chr\u003e\n\u003ch2\u003eSikalastic 702 — Elastic Polyurea Hybrid Liquid-Applied Roof Waterproofing Membrane\u003c\/h2\u003e\n\u003cp\u003eSikalastic®-702 is a 2-part elastic polyurea hybrid (PU\/PUA) liquid-applied waterproofing membrane, part of the SikaRoof® PUR liquid-applied roofing system. It is cold applied in a single layer, self-smoothing, and requires no reinforcement. Once cured, it forms a seamless, highly elastic waterproof layer with approximately 900% elongation at break.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCold applied — no heat or flame required\u003c\/li\u003e\n\u003cli\u003eSingle-layer application, no reinforcement needed\u003c\/li\u003e\n\u003cli\u003eApproximately 900% elongation at break — excellent crack-bridging\u003c\/li\u003e\n\u003cli\u003eSelf-smoothing for a flat, even finish\u003c\/li\u003e\n\u003cli\u003e~100% solid content, very low VOC (~0.07 g\/L)\u003c\/li\u003e\n\u003cli\u003eRoot resistant (DIN CEN\/TS 14416) — suitable for green roofs\u003c\/li\u003e\n\u003cli\u003eResistant to ponding water\u003c\/li\u003e\n\u003cli\u003eCE marked to ETAG 005-1-6:2004\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFlat fully exposed roof structures\u003c\/li\u003e\n\u003cli\u003eNew construction and refurbishment roof projects\u003c\/li\u003e\n\u003cli\u003eRoofs with complex geometry — penetrations, drains, roof lights\u003c\/li\u003e\n\u003cli\u003eBalcony and terrace decks (beneath protective layer)\u003c\/li\u003e\n\u003cli\u003eSmall projects where application machinery is not practical\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Installation must only be carried out by Sika-trained and approved contractors.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\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\u003eChemical Base\u003c\/td\u003e\u003ctd\u003eElastomeric PU\/PUA hybrid\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eColour\u003c\/td\u003e\u003ctd\u003eLight grey\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eDensity (mixed A+B)\u003c\/td\u003e\u003ctd\u003e~1.24 kg\/L\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eSolid Content\u003c\/td\u003e\u003ctd\u003e~100% (by weight and volume)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eVOC Content\u003c\/td\u003e\u003ctd\u003e~0.07 g\/L\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eShore A Hardness\u003c\/td\u003e\u003ctd\u003e~75\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eTensile Strength\u003c\/td\u003e\u003ctd\u003e~10.0 N\/mm²\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eElongation at Break\u003c\/td\u003e\u003ctd\u003e~900%\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eTensile Adhesion Strength\u003c\/td\u003e\u003ctd\u003e~2.5 N\/mm² (with Sika® Concrete Primer LO)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eTear Strength\u003c\/td\u003e\u003ctd\u003e~13.8 N\/mm²\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eMixing Ratio (A:B)\u003c\/td\u003e\u003ctd\u003e1 : 1.72 (by weight)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePot Life\u003c\/td\u003e\u003ctd\u003e~25 minutes at +20°C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePackaging\u003c\/td\u003e\u003ctd\u003e25 kg (Part A: 4.7 L \/ 9.2 kg + Part B: 15.5 L \/ 15.8 kg)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eShelf Life\u003c\/td\u003e\u003ctd\u003e12 months from date of production\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eStorage\u003c\/td\u003e\u003ctd\u003eUnopened, dry, +5°C to +30°C\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCuring Times (at ~50% r.h.)\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth\u003eTemperature\u003c\/th\u003e\u003cth\u003eRain Resistant\u003c\/th\u003e\u003cth\u003eFoot Traffic\u003c\/th\u003e\u003cth\u003eFull Cure\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003e+10°C\u003c\/td\u003e\u003ctd\u003e~3 hours\u003c\/td\u003e\u003ctd\u003e~10 hours\u003c\/td\u003e\u003ctd\u003e~28 hours\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e+20°C\u003c\/td\u003e\u003ctd\u003e~2 hours\u003c\/td\u003e\u003ctd\u003e~6 hours\u003c\/td\u003e\u003ctd\u003e~24 hours\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e+30°C\u003c\/td\u003e\u003ctd\u003e~1 hour\u003c\/td\u003e\u003ctd\u003e~4 hours\u003c\/td\u003e\u003ctd\u003e~20 hours\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003ch3\u003eWhat is the difference between Sikalastic 702 and Sikalastic 680?\u003c\/h3\u003e\n\u003cp\u003eSikalastic 702 is a 2-part polyurea hybrid membrane with ~100% solid content, self-smoothing, designed specifically for roof waterproofing and requiring professional installation. Sikalastic 680 is a 1-part moisture-curing polyurethane membrane suitable for a wider range of applications (roofs, basements, water tanks) and more accessible for general contractors.\u003c\/p\u003e\n\u003ch3\u003eCan Sikalastic 702 be left exposed?\u003c\/h3\u003e\n\u003cp\u003eYes. It is designed for fully exposed flat roof applications and is root resistant. Prolonged UV exposure may cause slight discolouration; an aliphatic topcoat (Sikalastic®-701) can be applied within 7 days for additional UV protection.\u003c\/p\u003e\n\u003ch3\u003eHow long does Sikalastic 702 take to cure?\u003c\/h3\u003e\n\u003cp\u003eAt +20°C and ~50% relative humidity, it becomes rain resistant in about 2 hours, can withstand foot traffic after about 6 hours, and reaches full cure in approximately 24 hours.\u003c\/p\u003e","brand":"Sika 西卡","offers":[{"title":"Default Title","offer_id":46352842227862,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/Sika_NoClaim_pos_rgb_30_1a78ab0e-f935-4dc4-9fab-16744f05ad4d.png?v=1776682153","url":"https:\/\/wahhingwp.com\/en\/products\/%e8%a5%bf%e5%8d%a1sikalastic-702-%e9%9b%99%e7%b5%84%e5%88%86%e9%98%b2%e6%bc%8f%e8%86%9c","provider":"華興建築防水材料有限公司","version":"1.0","type":"link"}