The Sika Plastix-22A Premium Grade is a high-quality, low modulus, neutral curing silicone sealant designed for a wide range of construction and industrial applications, with a particular focus on glazing, facade, and roofing projects. It offers excellent primerless adhesion to most common building substrates, both porous and non-porous. This sealant is suitable for both internal and external use and cures rapidly. It is certified to EN15651-1 type F EXT-INT-CC, Class 25LM, EN15651-2 type G-CC, Class G25LM, and EN15651-3 type S, Class XS1. Key applications include perimeter pointing around window and door frames (uPVC, wood, aluminium), sealing expansion joints, weather sealing and joint sealing of aluminium glazing systems, curtain walling, and pre-formed facade panels. It is also ideal for general glazing sealing and draught proofing, including repair work over existing sealant, parapet and roofline weather sealing, sanitary sealing, glass to glass and glass to aluminium sealing, and sealing soft metals like lead, brass, copper, and zinc. Industrial applications include sealing coated metals, anodized aluminium, and stainless steel. The sealant boasts excellent flexibility of +/- 25%, is waterproof, weather-resistant, UV-resistant, and chemical-resistant, with a service temperature resistance from -50°C to +150°C. It is suitable for use with glass, lead, polycarbonate, and acrylic sheets. The product has a shelf life of 18 months from the date of manufacture and should be stored in cool, dry conditions away from direct sunlight between +5°C and +30°C. Density is 1.03 g/cm³, and Shore A hardness is between 20-30.