{"product_id":"sika-西卡-sikaflex-construction-sealant-joint-filler-填縫膠","title":"Sika Sikaflex Construction Sealant","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\u003eSikaflex Construction is a one-component, moisture-curing elastic joint sealant by Sika, designed for expansion joints, perimeter joints and general sealing in concrete and masonry facades. Non-sag, bubble-free cure, paintable, and bonds to most substrates without primer.\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003eSikaflex Construction Features\u003c\/h2\u003e\u003cp\u003eSikaflex Construction is a high-quality one-component, moisture-curing elastic joint sealant designed for expansion and connection joint sealing in concrete and masonry facades. It offers excellent joint movement capability, effectively accommodating joint displacement without cracking or debonding. Sikaflex is Sika's most recognised expansion joint sealant brand, widely used in construction projects worldwide.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eOne-component, moisture-curing, ready to use\u003c\/li\u003e\u003cli\u003eExcellent joint movement capability to accommodate thermal expansion and contraction\u003c\/li\u003e\u003cli\u003eGood adhesion to many substrates — no primer needed in most cases\u003c\/li\u003e\u003cli\u003eNon-sag, bubble-free curing\u003c\/li\u003e\u003cli\u003eHigh tear strength with excellent weathering resistance\u003c\/li\u003e\u003cli\u003ePaintable — matches building facade colour after painting\u003c\/li\u003e\u003cli\u003eVery high elongation at break\u003c\/li\u003e\u003cli\u003eGood workability and smooth application\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eExpansion Joint Sealing\u003c\/strong\u003e — expansion and connection joints in concrete and masonry structures\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003ePrecast Concrete\u003c\/strong\u003e — joints between precast concrete elements\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eDoor \u0026amp; Window Perimeter\u003c\/strong\u003e — perimeter sealing between frames and walls\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eBalcony Railings\u003c\/strong\u003e — balcony railing and parapet joints\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eBridge Structures\u003c\/strong\u003e — structural joint sealing\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eRetaining Walls\u003c\/strong\u003e — retaining wall expansion joints\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eUnderground Passages\u003c\/strong\u003e — underground passage joint sealing\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eSkirting \u0026amp; Wall Base\u003c\/strong\u003e — wall-to-floor junctions\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eLouvre Frames\u003c\/strong\u003e — perimeter sealing of louvre frames\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eWhy Choose Sikaflex Construction\u003c\/h2\u003e\u003cp\u003eThe key advantage of Sikaflex Construction is that it is \u003cstrong\u003epaintable\u003c\/strong\u003e — silicone sealants (such as Dowsil 791) cannot be painted after curing, but Sikaflex can. If joints need to match the wall colour, Sikaflex is the better choice. Additionally, Sikaflex Construction achieves good adhesion on most substrates without primer, simplifying the application process. Its very high elongation at break and excellent elastic recovery ensure joints remain sealed even after prolonged use.\u003c\/p\u003e\u003ch2\u003ePackaging\u003c\/h2\u003e\u003cp\u003eSausage pack. Available colours: White, Concrete Grey, Black, Beige, Dark Amber, Quartz Grey\u003c\/p\u003e\u003ch2\u003eBasic Specifications\u003c\/h2\u003e\u003ctable\u003e\u003cthead\u003e\u003ctr\u003e\u003cth\u003eProperty\u003c\/th\u003e\u003cth\u003eSpecification\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003eChemical Base\u003c\/td\u003e\u003ctd\u003ePolyurethane\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eCuring Mechanism\u003c\/td\u003e\u003ctd\u003eOne-component, moisture-curing\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eCharacteristics\u003c\/td\u003e\u003ctd\u003eHigh elasticity, high elongation, high elastic recovery\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003ePaintable\u003c\/td\u003e\u003ctd\u003eYes (after full cure)\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eSikaflex Construction vs Other Joint Sealants\u003c\/h2\u003e\u003ctable\u003e\u003cthead\u003e\u003ctr\u003e\u003cth\u003eProduct\u003c\/th\u003e\u003cth\u003eBrand\u003c\/th\u003e\u003cth\u003eKey Features\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eSikaflex Construction\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003eSika\u003c\/td\u003e\u003ctd\u003ePaintable, non-sag, for concrete\/masonry\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eSikaHyflex 305 AP\u003c\/td\u003e\u003ctd\u003eSika\u003c\/td\u003e\u003ctd\u003eCurtain wall specialist, greater movement capability\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eEmfimastic PU 25\u003c\/td\u003e\u003ctd\u003eEMFI\u003c\/td\u003e\u003ctd\u003ePolyurethane sealant, multi-substrate adhesion\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eThioflex 600\u003c\/td\u003e\u003ctd\u003eFosroc\u003c\/td\u003e\u003ctd\u003eMulti-component polysulphide, horizontal joints\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eDowsil 791\u003c\/td\u003e\u003ctd\u003eDOWSIL\u003c\/td\u003e\u003ctd\u003eSilicone sealant, not paintable\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eImportant Notes\u003c\/h2\u003e\u003cul\u003e\u003cli\u003ePaintable, but must be fully cured before painting; non-flexible paint systems may cause paint cracking — compatibility testing recommended\u003c\/li\u003e\u003cli\u003eNot suitable for swimming pools or surrounding areas\u003c\/li\u003e\u003cli\u003eNot suitable for joints under hydrostatic pressure or permanent water immersion\u003c\/li\u003e\u003cli\u003eNot suitable for bituminous substrates, natural rubber, EPDM rubber, or materials that may bleed oils, plasticisers or solvents\u003c\/li\u003e\u003cli\u003eConsult Sika Technical Services before using on natural stone\u003c\/li\u003e\u003cli\u003eUncured Sikaflex Construction must not contact alcohol-based products\u003c\/li\u003e\u003cli\u003eWhite and light colours may show slight discolouration due to chemicals, high temperatures or UV exposure — this is normal and does not affect performance\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":45242520174742,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/sika-sikaflex-construction-sealant-joint-filler-elastic-sealant-concrete-brick-exterior-walls.png?v=1760462881","url":"https:\/\/wahhingwp.com\/en\/products\/sika-%e8%a5%bf%e5%8d%a1-sikaflex-construction-sealant-joint-filler-%e5%a1%ab%e7%b8%ab%e8%86%a0","provider":"華興建築防水材料有限公司","version":"1.0","type":"link"}