Applying Paint Over Existing Finishes
Before applying our paint over an existing finish, it’s important to ensure that the new paint will not cause the underlying layer to lift or wrinkle. Test this by applying automotive lacquer thinner to the surface with a damp cloth. If the existing finish remains intact without softening or wrinkling, it is safe to proceed with our paint. Additionally, testing a small area first before undertaking a full recoating is recommended to confirm compatibility.
Application on Powder Coatings
Properties of Powder Coatings
- Composition: Powder coatings are made of urethane, which is cured and baked at high temperatures.
Preparation for Powder Coating Application
- Cleaning: Begin by using a wax and grease remover to thoroughly clean the area.
- Sanding: Wet sand the area starting with 220 grit sandpaper, followed by 600 grit to ensure a smooth surface.
- Priming: Apply primer to any scratched areas to ensure a smooth, even base for painting.
Powder CoatingPainting Process
- Basecoat Application: Proceed with the basecoat application, allowing each layer to dry thoroughly before applying the next.
Scratch Repair for Powder Coatings
- Surface Testing: Before repainting, assess the compatibility of our paint with the existing finish by applying automotive lacquer thinner. Wet the surface and gently rub with a damp cloth to test.
- Finish Integrity: If the existing finish does not soften or wrinkle from the test, it is safe to apply our paint.
- Testing Small Area: Always test the paint on a small, inconspicuous area before proceeding with a full recoat to ensure proper adhesion and finish quality.
Fiberglass Scratch Repair Directions
- For painting rigid fiberglass parts, treat them similar to metal surfaces.
- Apply SEM Adhesion Promoter on fiberglass or any non-metal surface before primer to ensure maximum paint adhesion.
- Application Sequence
- Spray the SEM Adhesion Promoter on the clean surface first.
- Follow up with the application of primer.