Color film adhesion issues (Paint Incompatibility) This means that the topcoat of water-based paint does not adhere to surfaces previously coated with oil-based paint, leading to problems of peeling paint that can damage the surface.
Causes of color film adhesion issues
- Using acrylic water-based paint on very smooth surfaces, surfaces with multiple layers of oil-based paint (3-4 layers or more), or surfaces painted with alkyd resin enamel.
- Using low-quality topcoats or those with low adhesion properties, which results in poor adhesion when applied to very smooth surfaces or on oil-based paint films.
Solutions for color film adhesion issues
- Scrape off all old paint and sand the surface clean to remove dust, preparing for the next coat of paint.
- Apply a primer to enhance adhesion to the surface by selecting a high-adhesion and penetrating primer suitable for each type of long-used surface, such as applying Beger Rust Guard epoxy primer for metal in 1 coat or Beger Pro Quick Primer B-1900 multi-purpose primer for masonry in 1-2 coats.
- Apply a topcoat with high adhesion properties and long-lasting durability, such as BegerShield Diamond SuperGloss Enamel oil-based gloss paint or water-based acrylic topcoats like BegerCool UV Shield or BegerCool DiamondShield Plus in 2 coats, allowing to dry between coats for 2-3 hours.
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