Multi-purpose mastic adhesive SIKA Sikaflex 221 - Black - 300ml - Set of 12, Flexible mastic adhesives designed for making high-strength waterproofing joints and adheres to many substrates such as wood, metals, primers and paints (two-component), ceramics and plastics. Advantages : Single component Excellent resistance to ageing Non-corrosive Painting and sanding possible NSF approval for safe use in food environments. Features : Density: approx. 1.3kg/l (depending on colour) Application temperature: +5C to +40C Skin formation time: about 60 min Open time: about 45 min Colour: Black Packaging: Carton of 12 cartridges of 300ml Reference: 1389x12 Packaging : 1x Set of 12 SIKA Sikaflex 221 Multi-Purpose Mastic Glue - Black - 300ml2 Delivered in its original packaging Tips : SUPPORT Sikaflex 221 must be applied to dry, grease-free and dust-free surfaces. APPLICATION Drill through the cartridge membrane and apply the product with a pneumatic or manual gun. Once opened, the product must be used in a relatively short time. The optimum application temperature: +15C to +25C. The joints must be smoothed before the product has formed its skin. We recommend using Sika Tooling Agent N. Any other agent or lubricant should be tested to ensure its compatibility. Use Sika products with caution. Before use, please consult the manufacturer's product manual available on the sika.com website.