Latex paints, on the other hand, cure through water evaporation, forming a flexible film that relies on bonding to a porous surface. The Role of Bonding Primer While preparation is vital, the application of a bonding primer is the insurance policy that guarantees success.
Using a Standard Latex Primer on Sanded Oil-Based Surfaces
Applying a fresh coat of color over an existing finish seems straightforward, but the chemical reality of the materials dictates strict rules. Before applying latex, you must inspect the substrate and fill any cracks or holes with a flexible, oil-compatible filler.
Cleaning and Deglossing Begin by cleaning the surface with a degreaser to remove any dirt, grease, or airborne contaminants that could block adhesion. Oil and latex have different drying times and viscosities, so working in small sections is essential to prevent lap marks.
Using a Standard Latex Primer on Sanded Oil-Based Surfaces
Sand these repairs flush to ensure a uniform bond for the new topcoat. Roll the paint on in a consistent "W" pattern to ensure the new layer mechanically locks into the pores created during sanding.
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