This answer applies to all our coatings on ANY surface:
Spray Lining and Coatings brand products will adhere well to practically any surface except chrome and certain galvanized steel. However, you need primers for the following conditions:
- Plastic Fenders, Bumpers, etc
- Bare Metal (especially bare aluminum)
Bare Metal Preparation
Whether it’s a truck bed, trailer, container, or other object, if you have a corrosion-free bare metal surface you will need an AUTO OR MARINE-GRADE 1:1 EPOXY PRIMER. There are many available on the market. The key is that it is 1:1 Epoxy Primer. For best adhesion, always consult the label or ask the sales representative if it is recommended for the specific metal surface you are applying it to.
Plastic Fenders, Bumpers, etc
If you have worked with coating plastic surface you know that without the proper prep, coatings DO NOT adhere for any significant period of time. We recommend using House of Kolor AP-01 adhesion promoter or more readily available Bull Dog Adhesion Promoter to prep a plastic surface for our coatings.
The key to using this product is to apply the coating shortly after use of the adhesion promoter. The adhesion promoter works by making the plastic surface tacky with a chemical reaction. While the surface is reacting it is most capable of accepting a bond with another material. So, it’s important to use our coating shortly after treating the surface with the appropriate adhesion promoter.