{"product_id":"sika-西卡-sikatop®-540-seal-former-mseal-540","title":"Sika SikaTop-540 Seal","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px;\"\u003e\u003cstrong\u003eQuick Summary:\u003c\/strong\u003e\u003cp\u003eSikaTop-540 Seal (formerly MSeal 540) is a high-elasticity polymer-modified cementitious waterproofing slurry by Sika. Bridges fine cracks, breathable to prevent moisture build-up. Certified safe for drinking water contact. Suitable for potable water tanks, reservoirs and external wall waterproofing. Supplied as a kit.\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003eSikaTop 540 — High-Elasticity Drinking Water Grade Waterproofing Slurry\u003c\/h2\u003e\u003cp\u003eSikaTop-540 Seal (formerly MSeal 540) is a two-component, pre-proportioned waterproofing slurry system comprising a liquid polymer (Part A) and pre-blended powder (Part B). When mixed, they produce a smooth, brush-applied waterproofing slurry that bonds excellently to various building substrates. This polymer-modified slurry, based on selected synthetic resins and cement, provides enhanced adhesion while allowing water vapour transmission to prevent internal moisture accumulation. The product is certified for drinking water safety and passes fire resistance testing.\u003c\/p\u003e\u003ch2\u003eSikaTop 540 Features\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eTwo-component pre-proportioned system (liquid polymer + powder), consistent quality\u003c\/li\u003e\u003cli\u003ePolymer-modified for improved adhesion to multiple substrates\u003c\/li\u003e\u003cli\u003eHigh elasticity, bridges fine cracks, accommodates minor structural movement\u003c\/li\u003e\u003cli\u003eGood breathability (allows water vapour transmission), prevents moisture build-up, reduces long-term maintenance\u003c\/li\u003e\u003cli\u003eDurable and weather-resistant, suitable for exposed application\u003c\/li\u003e\u003cli\u003eEasy to apply by brush or spray\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eDrinking water safe\u003c\/strong\u003e — certified for potable water contact\u003c\/li\u003e\u003cli\u003ePasses fire resistance testing\u003c\/li\u003e\u003cli\u003eVery low VOC content\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003ePotable Water Waterproofing\u003c\/strong\u003e — drinking water tanks, reservoirs, cistern interiors\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eExternal Walls\u003c\/strong\u003e — concrete, masonry and other substrate exterior waterproofing\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eTerraces \u0026amp; Balconies\u003c\/strong\u003e — terrace, balcony, kitchen and bathroom sub-floor waterproofing\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003ePlanters \u0026amp; Tanks\u003c\/strong\u003e — planters, sumps, water tanks interior waterproofing\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eBridge Decks\u003c\/strong\u003e — bridge and flyover deck rain penetration protection\u003c\/li\u003e\u003cli\u003eBuildings with minor structural movement\u003c\/li\u003e\u003cli\u003eProjects requiring breathable substrate protection without moisture entrapment\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eWhy Choose SikaTop 540?\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eDrinking water grade:\u003c\/strong\u003e One of few waterproofing slurries certified for potable water contact\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eBreathable:\u003c\/strong\u003e Allows water vapour transmission, prevents internal moisture build-up\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eHigh elasticity:\u003c\/strong\u003e Bridges fine cracks, accommodates minor building movement\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eExposed use:\u003c\/strong\u003e Can be left exposed without additional protective layer\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eFire rated:\u003c\/strong\u003e Passes fire resistance testing\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003ePackaging\u003c\/h2\u003e\u003cp\u003eKit (Part A liquid in plastic container + Part B powder in paper bag)\u003c\/p\u003e\u003ch2\u003eSikaTop 540 vs SikaTop 107\u003c\/h2\u003e\u003ctable\u003e\u003cthead\u003e\u003ctr\u003e\u003cth\u003eProperty\u003c\/th\u003e\u003cth\u003eSikaTop 540\u003c\/th\u003e\u003cth\u003eSikaTop 107\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003eElasticity\u003c\/td\u003e\u003ctd\u003eHigh (bridges fine cracks)\u003c\/td\u003e\u003ctd\u003eRigid (no crack-bridging)\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eBreathability\u003c\/td\u003e\u003ctd\u003eGood (allows vapour transmission)\u003c\/td\u003e\u003ctd\u003eStandard\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eWater Pressure\u003c\/td\u003e\u003ctd\u003ePositive side\u003c\/td\u003e\u003ctd\u003ePositive side\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eDrinking Water\u003c\/td\u003e\u003ctd\u003eCertified\u003c\/td\u003e\u003ctd\u003e—\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eExposed Use\u003c\/td\u003e\u003ctd\u003eCan be exposed\u003c\/td\u003e\u003ctd\u003eRequires protective layer\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eBest For\u003c\/td\u003e\u003ctd\u003eBreathable + elastic + potable water scenarios\u003c\/td\u003e\u003ctd\u003eIndoor bathroom\/WC general waterproofing\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eImportant Notes\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eSubstrate must be clean, sound, free from laitance, loose particles, grease and old coatings\u003c\/li\u003e\u003cli\u003eSubstrate must be thoroughly saturated with water before application\u003c\/li\u003e\u003cli\u003eMix using mechanical stirrer (slow-speed drill with paddle), mix until uniform and lump-free\u003c\/li\u003e\u003cli\u003eProtect fresh coatings from direct sun, high temperatures and wind to prevent rapid drying\u003c\/li\u003e\u003cli\u003eCure using damp hessian, polyethylene film or Sika Antisol S curing compound\u003c\/li\u003e\u003cli\u003eFreezing will destroy the product — prevent freezing during storage\u003c\/li\u003e\u003cli\u003eClean tools with water before resin hardens\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eFor detailed application methods, coverage rates and technical parameters, please refer to the official product data sheet.\u003c\/em\u003e\u003c\/p\u003e","brand":"Sika 西卡","offers":[{"title":"Default Title","offer_id":45242499203222,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/sika_sikatop_540_seal_waterproofing_vietnam_product_package.png?v=1760463032","url":"https:\/\/wahhingwp.com\/en\/products\/sika-%e8%a5%bf%e5%8d%a1-sikatop%c2%ae-540-seal-former-mseal-540","provider":"華興建築防水材料有限公司","version":"1.0","type":"link"}