This mismatch can create stress within the layers, causing cracks to appear as the underlying film moves. Multiple coats of a quality primer will reduce the number of topcoats needed, saving time and material costs in the long run.
Latex Paint Over Oil Adhesion Tips for a Secure, Long-Lasting Finish
This involves using a degreaser or a dedicated adhesion promoter specifically designed to rough up the slick surface and create a mechanical key for the new paint to adhere to. Staining and Spot Priming If you are dealing with water stains, smoke damage, or tannin bleed from wood, a specialized stain-blocking primer is essential.
Oil-based coatings create a hard, non-porous finish that repels water, making it difficult for the water-based latex to bond securely. Apply a bonding primer or deglosser to ensure the latex molecules can lock onto the old finish.
Latex Paint Over Oil Adhesion Tips for a Secure Bond
These products are formulated to seal the porous nature of wood if the oil is coming from a raw surface, or to encapsulate the glossy oil finish if it is already painted. Merely washing the surface with soap and water is insufficient to overcome the oily residue left behind by furniture or handling.
More About Latex paint over oil based paint
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