SikaFlex 221 Polyurethane Flexi Glue/Sealant (Black)$ 16.24 SikaFlex 221 Polyurethane Flexi Glue/Sealant (Black).Specification:High quality polyurethane sealantOne-part formulationLow odourRemains permanently elasticResistant to ageing and weather exposureNon-corrosiveCan be overpaintedCan be sandedBonds metal to metal Fantastic in marine application300ml Tube – suits caulking gun.Can be used on:TimberMetals (works on steel and aluminium)Metal primersPaint coatingsCeramic materialsPlasticsSikaflex is well know in the motorhome and caravan industry as the market leader for polyurethane flexible glue.The product is fully sprayable/paintable and has extremely high impact strength.The adhesive is used for a whole host of applications, bonding roofs, skylights, awning brackets and rails, timber to metal, and metal to metal applications.As well as a sealant for doors, windows, motorhome/caravan panels, internal shower trays and panels, and pretty much any thing else you can think of.There are cheaper polyurethane products out there but the Sikaflex and its excellent UV resisting abilities make it stand out as the product to rely on. Related products SikaFlex 221 Polyurethane Flexi Glue/Sealant (White)Select options FC40 Sealant/Adhesive Glue x 4Select options Everbuild Tecnic Silicone 825 – 380mlAdd to cart Sikaflex 545 – 600ml – White Silane Terminated PolymerSelect options This product has multiple variants. The options may be chosen on the product page Sikaflex 508 – 600mlAdd to cart