What should I do before painting?

Generally, you should prepare the surface by removing dirt, grease, rust, wax, moisture and loose paint.

Generally, you should prepare the surface by removing dirt, grease, rust, wax, moisture and loose paint. Make sure the surface is clean, dry and free of contaminants. If painting uPVC it is recommended that the WRX Trade Primer be used due to the possibility of residual chemicals from prior cleaning and surface preparation.