Preparation Step Purpose Recommended Action Cleaning Remove grease and dust TSP or mild detergent solution Sanding Degloss and roughen surface 220-grit sandpaper, wipe with tack cloth Priming Bond oil to latex Apply a bonding or stain-blocking primer Choosing the Right Latex Product Not all latex paints are created equal when it comes to covering difficult surfaces. Because oil and water do not mix, applying latex directly over a slick, fully cured oil surface creates a barrier where the two layers essentially slide past one another rather than bonding.
Can Latex Paint Cover Oil Base: Preparation and Priming Tips
" These formulations are engineered to provide a harder, more durable finish similar to oil-based paint while retaining the low odor and quick cleanup of waterborne products. These primers are specifically formulated to chemically bond with oil-based substrates and provide a receptive surface for the latex topcoat.
Using a medium-frit sandpaper, you should lightly sand the entire area until the surface loses its shine and feels slightly matte. For high-traffic areas like hallways or furniture, this extra durability is worth the investment.
Can Latex Paint Cover Oil Base: Key Steps for Proper Adhesion
The Critical Step of Deglossing Before you can even think about opening your latex can, you must address the shiny surface of the oil paint. This is done through sanding, but not with a random swipe of grit.
More About Can you put latex paint over oil based paint
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