Potential Issues to Monitor Even with proper preparation, it is important to be aware of the inherent differences in flexibility between the two products. These cracks can then telegraph through the latex topcoat, appearing as fine lines or fissures in the finished wall.
Best Practices for Painting Over Oil Primer Surfaces
Oil primer, often referred to as a bonding or stain-blocking primer, creates a hard, non-porous film that is highly resistant to moisture and solvents. Ensure the primer is completely dry before applying the bonding agent.
This process is known as deglossing or sanding. Adhesion Promoters and Bonding Agents For situations where the surface will experience high traffic, moisture, or significant temperature fluctuations, relying solely on light sanding might not provide enough long-term security.
Best Practices for Ensuring Long-Lasting Adherence When Painting Over Oil Primer
A bonding agent can be rolled or brushed onto the sanded oil primer, allowed to become tacky, and then the latex paint is applied. This creates a powerful mechanical bond that significantly reduces the risk of adhesion failure, effectively locking the topcoat in place.
More About Can you paint latex over oil primer
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