Sika Primer-210 is a liquid primer of low viscosity to improve adhesion of Sikaflex products on various substrates. Use Sika Primer-210 is used to improve the adhesion of Sikaflex adhesives on many metals such as aluminium and galvanized steel, plastics and paint-primed substrates. This primer is also suitable to enhance the adhesion of Sikasil sealants and adhesives on porous and non-porous substrates. Characteristics and Advantages One-component Fast drying Colour Transparent, Yellow Packaging 250ml 1000ml.