Sika Primer 290DC Surface Treatment 250ml Can Non-Pigmented

Sika Primer-290 DC is a solvent-based primer suitable for experienced professional users only. The colourless to slightly yellow primer reacts with moisture to form a thin layer, acting as a link between substrates and adhesive/sealant. This primer is designed for the treatment of timber decking strips prior to caulking with Sikaflex 290 DC or bonding with Sikaflex 298. It improves adhesion on teak, mahogany, Oregon pine and GRP based on polyester. PLEASE NOTE: Before application, the substrate must be clean, dry and free from grease, oil, dust and contaminants. Adhesion on substrates may be improved by adding and/or combining pre-treatment processes such as scuffing and cleaning. The user should seek manufacturer's advice and perform tests on original substrates before using Sika Primer-290 DC on materials prone to stress cracking.