What causes paint to chip at the cabinet door edges in New Brunswick homes and how can I prevent it?

Paint chipping at cabinet door edges is extremely common in New Brunswick homes and is typically caused by a combination of high-traffic wear, inadequate surface preparation, and the wrong type of paint for the demanding cabinet environment.

The edges of cabinet doors take more abuse than any other painted surface in your home. They're constantly touched, bumped, opened, and closed — sometimes hundreds of times per day. In NB's humid summers and dry winters, cabinet doors also expand and contract with seasonal moisture changes, putting additional stress on the paint film. When regular wall paint is used on cabinets, or when proper prep work is skipped, the paint simply can't handle this constant flexing and impact.

Surface preparation is the most critical factor in preventing edge chipping. Cabinet doors often have a factory finish that's too smooth for new paint to adhere properly. The edges, in particular, may have rounded profiles or slight imperfections that trap dirt and oils from years of handling. Before painting, cabinet doors must be thoroughly cleaned with a degreasing agent like TSP (trisodium phosphate), then lightly sanded with 220-grit sandpaper to create "tooth" for the new paint. Pay special attention to the edges — they need to be completely clean and slightly roughened. Any glossy spots or smooth areas will cause the new paint to chip off within weeks.

Paint selection makes a huge difference for cabinet durability. Regular latex wall paint is too soft for cabinet doors and will chip easily at the edges. You need either a high-quality acrylic-alkyd hybrid paint (like Benjamin Moore Advance or Sherwin-Williams ProClassic) or a specialty cabinet paint. These paints cure harder than regular latex, creating a more durable surface that can handle the constant wear. In NB, where many homes experience significant humidity swings between summer and winter, these harder-curing paints also resist the expansion and contraction that causes edge cracking.

Application technique is crucial for edge durability. Cabinet edges should be painted with a high-quality angled brush (2-2.5 inch Purdy or Wooster), not a roller. The brush allows you to work the paint into any small crevices and create a smooth, even film thickness. Apply thin, even coats rather than trying to cover in one heavy application. Two thin coats will always outperform one thick coat, especially on high-wear areas like door edges. Sand lightly with 220-grit between coats if you notice any brush marks or imperfections.

Primer is non-negotiable for cabinet painting, especially on previously painted surfaces or wood with tannins (like oak or cherry common in older NB homes). Use a high-adhesion primer specifically designed for cabinets and trim. On bare wood edges, use a stain-blocking primer to prevent tannin bleed-through that can cause discoloration and adhesion problems.

When to hire a professional: While you can successfully paint cabinet doors yourself with proper prep and materials, professional cabinet painters achieve noticeably better results on the edges through spray application. Spraying creates a perfectly smooth, even film thickness that's much more durable than brush application. For a kitchen you'll use daily, the investment in professional spray finishing often pays off in longevity and appearance. Professional painters also have spray booths that eliminate dust contamination during the critical curing period.

If your cabinet edges are already chipping, don't just touch them up — the underlying adhesion problem will cause the touch-ups to fail quickly. Strip or sand the loose paint, clean thoroughly, prime, and repaint with proper cabinet paint for lasting results.