Plastic primer is another tricky business… not all plastics are the same… we can't just identify plastic by looking at the color. Only the manufacturer knows... Most seller will say "plastic lah" but is it PE, PP, PU, HDPE, MDPE, PET, PETE, HIP… etc etc. All react differently to coatings… pengsan
Etch primer also another generic name. Get zinc base etch primer will guarantee work on aluminum surfaces.
Etch primer are suitable for galvanized steel, chrome plating surfaces too. Always a good practice to read/know the paint content.
High build paint is nice but doing multiple normal coats (with sanding between coats) will always produce a more lustrous finishing.
This post has been edited by KenC: Nov 19 2017, 10:08 AM
Folding Bicycles V6, Folding bicycle discussion