Peeling and Flaking

Problem Description:

Peeling and flaking refer to the partial or complete detachment of paint from the surface following furniture painting. This issue commonly arises when the paint does not adhere properly or when the underlying layer has not sufficiently cured. Peeling or flaking can cause significant aesthetic and functional problems, compromising the durability of the surface.

Possible Causes:

• Insufficient Surface Preparation: Failure to thoroughly clean the surface prior to painting—removing oil, dirt, dust, or residues of previous paint—impedes proper adhesion. This can lead to the paint peeling or flaking over time.
• Oily or Contaminated Surfaces: Layers of oil or dirt on the surface prevent the paint from bonding correctly to the substrate, resulting in localized peeling or flaking.

Solutions and Precautions:

• Thoroughly Clean the Surface: Ensure the surface is meticulously cleaned before painting. Oil, dirt, dust, and any remnants of old paint must be completely removed to provide a smooth and even base.
• Sand the Surface: If the surface is excessively rough or contains residual paint, lightly sand it to achieve smoothness. This promotes proper adhesion of the new paint. Use 180-220 grit sandpaper between raw and primer coats, and 320-400 grit before applying the final coat.
• Control Environmental Conditions: Maintain appropriate ambient temperature and humidity during painting. The ideal temperature range is 18-24°C (64-75°F) with humidity between 45-65%. Failure to comply may result in improper curing and subsequent peeling.

Summary:

Peeling and flaking problems predominantly stem from inadequate surface preparation. Careful application and selecting the appropriate materials are crucial steps to prevent these issues.