How to Improve Adhesion When Painting Difficult Surfaces
Some surfaces, including smooth metal, glossy paint, plastic, or sealed concrete, can be difficult for coatings to adhere to. Improving adhesion begins with understanding the surface and preparing it properly.
Light abrasion helps create a profile, giving the coating something to bond to. Chemical degreasers remove oils and contaminants that prevent adhesion. Once clean and abraded, a compatible primer should be applied to bridge the surface and the topcoat.
Testing a small area first can help confirm that the preparation method is effective. Allow proper drying and curing times between layers to ensure a strong bond.
With the right preparation steps, even challenging substrates can be coated successfully with long-lasting results.