{"product_id":"sikaflex-252i","title":"Sikaflex 521UV, the all-rounder for workshop and camper construction, bonding and sealing","description":"\u003cdiv class=\"cmp-product__description cmp-font--light\"\u003e\u003cstrong\u003eWe recommend SIKA 521UV for the installation of our windows.\u003c\/strong\u003e\u003c\/div\u003e \u003cdiv class=\"cmp-product__description cmp-font--light\"\u003e\u003c\/div\u003e\u003cp\u003e\u003cstrong\u003eWeather-resistant STP adhesive and sealant with a broad adhesion spectrum\u003c\/strong\u003e\u003c\/p\u003e \u003cp class=\"MsoNormal\"\u003eSikaflex®-521 UV is a weather-resistant, one-component STP adhesive and sealant with good adhesion to a wide range of substrates such as metals, ABS, PC, FRP and wood where no special pre-treatment is usually required. This universal product is suitable for interior and exterior sealing.\u003cspan style=\"mso-spacerun: yes;\"\u003e  \u003c\/span\u003e\u003c\/p\u003e \u003cul\u003e \u003cli class=\"MsoNormal\"\u003eResistant to ageing and weathering\u003c\/li\u003e \u003cli class=\"MsoNormal\"\u003eGood adhesion to a wide range of substrates without special pre-treatment\u003c\/li\u003e \u003cli class=\"MsoNormal\"\u003eFree from isocyanate and solvents\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003ePRODUCT ADVANTAGES\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli class=\"MsoNormal\"\u003eResistant to ageing and weathering\u003c\/li\u003e \u003cli class=\"MsoNormal\"\u003eGood adhesion to a wide range of substrates without special pre-treatment\u003c\/li\u003e \u003cli class=\"MsoNormal\"\u003eFree from isocyanate and solvents\u003c\/li\u003e \u003cli class=\"MsoNormal\"\u003eCan be painted over\u003c\/li\u003e \u003cli class=\"MsoNormal\"\u003eSandable\u003c\/li\u003e \u003cli class=\"MsoNormal\"\u003eLow odor\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli class=\"MsoNormal\"\u003e\u003cstrong\u003eSurface pre-treatment\u003c\/strong\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cp class=\"MsoNormal\"\u003eThe bonding surfaces must be clean, dry and free of grease, oil and dust. The surface pre-treatment depends on the specific nature of the substrate and is crucial for a durable bond. Instructions for substrate pre-treatment can be found in the current Sika® pre-treatment table. The information contained therein is based on experience and must always be verified by preliminary tests with original materials.\u003c\/p\u003e \u003cp class=\"MsoNormal\"\u003eWe recommend pre-treatment with SikaPrimer 207 \u003ca rel=\"noopener\" href=\"https:\/\/www.waerchzueg.ch\/products\/sikaprimer-207-schwarz-30ml-dose-vorbehandlung-schwarzprimer\" target=\"_blank\"\u003eLink\u003c\/a\u003e for all surfaces except wood.\u003c\/p\u003e \u003cul\u003e \u003cli class=\"MsoNormal\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cp class=\"MsoNormal\"\u003eSikaflex®-521 UV can be processed between 5 °C and 40 °C. Changes in reactivity and application properties must be taken into account. The optimum temperature for substrate and sealant is between 15 °C and 25 °C.\u003c\/p\u003e \u003cp class=\"MsoNormal\"\u003eApply Sikaflex®-521 UV with a suitable cartridge\/bag gun or pump system. Information on selecting and setting up a suitable pump system can be obtained from System Engineering at Sika Industry.\u003c\/p\u003e \u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e \u003cul\u003e \u003cli class=\"MsoNormal\" style=\"font-weight: bold;\"\u003e\u003cstrong\u003eSmoothing\u003c\/strong\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cp class=\"MsoNormal\"\u003eSmoothing must be carried out before the sealant forms a skin. For smoothing we recommend Sika® Smoothing Agent N \u003ca rel=\"noopener\" href=\"https:\/\/www.waerchzueg.ch\/products\/sika-abglattmittel-n-1000ml\" target=\"_blank\"\u003eLink\u003c\/a\u003e. Other smoothing agents must be tested for their suitability.\u003c\/p\u003e \u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e \u003cul\u003e \u003cli class=\"MsoNormal\"\u003e\u003cstrong\u003eRemoval\u003c\/strong\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cp class=\"MsoNormal\"\u003eUncured Sikaflex®-521 UV can be removed from tools and equipment with Sika® Remover-208 \u003ca href=\"https:\/\/www.waerchzueg.ch\/products\/sika-remover-208-1000-ml-klebstoffentferner\" rel=\"noopener\" target=\"_blank\"\u003eLink\u003c\/a\u003e or other suitable solvents. Cured material can only be removed mechanically.\u003c\/p\u003e \u003cp class=\"MsoNormal\"\u003eHands\/skin must be washed immediately with suitable cleaning cloths (e.g. Sika® Cleaner-350H) or industrial hand cleaners and water. No solvents on the skin!\u003c\/p\u003e \u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0299\/8347\/3708\/files\/24-10-_2023_14-36-25_1024x1024.jpg?v=1698151155\" alt=\"\"\u003e\u003c\/p\u003e \u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/Kmm5WrVITqg?si=SiJMQbE4O09nXNeM\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"waerchzueg.ch","offers":[{"title":"Black","offer_id":33268393050156,"sku":"sika521_15","price":19.95,"currency_code":"CHF","in_stock":true},{"title":"White","offer_id":33268393115692,"sku":"sika521_16","price":19.95,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/8347\/3708\/files\/e14c8a28-2aa0-4120-86c7-6f36f4fb0c01_cropped.jpg_sea.jpg?v=1757684540","url":"https:\/\/www.waerchzueg.ch\/en\/products\/sikaflex-521uv-the-all-rounder-for-workshop-and-camper-construction-bonding-and-sealing","provider":"waerchzueg.ch","version":"1.0","type":"link"}