Product descriptionWeathering-resistant STP adhesive sealant with a wide adhesion range. Especially suitable for installing roof fans and roof windows. Sikaflex®-521 UV is a weathering-resistant 1-component Silane Terminated Polymer (STP) adhesive / sealant that bonds well to a wide variety of bonding surfaces such as metals, ABS, PC, FRP and wood with usually no need for special pre-treatment. This multipurpose product is suitable for internal and external sealing applicatio Product benefits: * Ageing and weathering-resistant* Bonds well to a wide variety of substrates without the need for special pre-treatment* Isocyanate- and solvent-free* Can be overpainted* Can be sanded* Low odour Usage: Sikaflex®-521 UV adheres well to a wide variety of substrates and is suitable for elastic sealing and bonding. Suitable substrate materials include timber, metals, metal primers and paint coatings (2-component systems), ceramic materials and plastics.This multipurpose product is suitable for internal and external sealing applications. Seek manufacturer’s advice and perform tests on original substrates before using Sikaflex®-521 UV on materials prone to stress cracking. This product is suitable for experienced professional users only. Tests with actual substrates and conditions have to be performed to ensure adhesion and material compatibility. Typical product data: Chemical base: Silane Terminated PolymerColour (CQP001-1): White, grey, blackCure mechanism: Moisture-curingDensity (uncured): depending on color 1.4 kg/lNon-sag properties: GoodApplication temperature: ambient 5 ─ 40 °CSkin time (CQP019-1): 30 minutes ACuring speed (CQP049-1): (see diagram)Shrinkage (CQP014-1): 2 %Shore A hardness (CQP023-1 / ISO 48-4): 40Tensile strength (CQP036-1 / ISO 527): 1.8 MPaElongation at break (CQP036-1 / ISO 527): 400 %Tear propagation resistance (CQP045-1 / ISO 34): 5.5 N/mmService temperature (CQP513-1): -50 ─ 90 °CShelf life: 12 months Shipping Product can be shipped with these shipping methods. Pickup from warehouse in Finland 0,00 € Pick this delivery method when you want to pick up the goods from our warehouse in Nummela, Finland or the window will be installed locally by us. DSV - Noutopiste package 9,00 € Matkahuolto- Lähellä-package 9,00 € Matkahuolto - Jakopaketti (8-16 door to door, weekdays) 19,00 € Posti - Postal package 10,00 € Posti - Freight pallet shipment 59,00 €
