What should I consider when painting plastics with edding permanent spray?

Not all plastics are paintable. Flexible plastics such as soft PVC cannot be painted because the plasticisers they contain pass into the paint layer, affect paint adhesion and inhibit drying. Most rigid plastics can be painted, however, and you can use edding 5200 permanent spray on these. Suitable materials include polyurethane (PUR), polystyrene (PS), polyamide (PA), rubber-modified polypropylene (EPDM), acrylonitrile butadiene styrene plastic (ABS), glass fibre reinforced plastic (GRP), rigid polyvinyl chloride (rigid PVC), polyester (PES) and polyethylene terephthalate (PET). Unsuitable materials include polyethylene (PE, HDPE, LDPE) and polypropylene (PP); the surface properties of these plastics do not offer sufficient binding capabilities, preventing the paint from adhering to the surface. Most plastics are also sensitive to solvents and react strongly to fluctuations in temperature. That’s why we strongly recommend priming with the edding 5200 permanent spray plastic primer, to form a paintable barrier between the plastic substrate and the subsequent coat of paint. The edding 5200 permanent spray plastic primer is the ideal bonding agent for the subsequent coat of edding 5200 permanent spray acrylic paint. Before you start painting on plastic, test on an inconspicuous area first to determine whether the paint is compatible with the base material.  

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