What does flaking mean in painting?

Author: Reyna Heidenreich  |  Last update: Thursday, June 4, 2026

Flaking is the lifting of a brittle paint coating from the underlying surface in the form of flakes. Flaking can affect one or more coats. Flaking is a follow-on effect of cracking, where cracks in the paint film have allowed moisture to enter the paint system and compromise the adhesion bond.

How do you fix a flaky painting?

  1. Scrape off excess paint. Make sure to remove all the flaky bits. ...
  2. Fill the patches. Use a filler to help patch up. ...
  3. Sand the walls. Choose sandpaper coarse enough to smooth the filler. ...
  4. Paint on primer. Now it was time to paint on some primer, which acts as an undercoat before painting. ...
  5. After a day, paint your walls.

What is the difference between flaking and peeling paint?

It can also be caused by the use of an incorrect paint system, poor surface preparation or ageing of the paint system. Flaking is similar to peeling, but with the former the coating tends to be harder and brittle.

How do you stop paint from flaking?

Remove all loose and flaking paint with a scraper or wire brush, sand the surface and feather the edges. If the flaking occurs in multiple layers of paint, use of filler may be necessary. Prime bare timber areas before repainting. Use of a premium quality primer and topcoat should prevent a recurrence of the problem.

What does peeling paint indicate?

Peeling paint is most commonly created when water gets under the paint. Therefore, the most common areas for peeling paint to occur are in the wet areas of a house or building e.g. bathroom, laundry or kitchen. However, there may be other issues with the premises such as excess humidity or a leaky roof.

Why does paint peel off the walls of a house

Can peeling paint be fixed?

Yes, with proper preparation, priming, and painting, peeling paint can be restored effectively.

Does peeling paint always mean mold?

Peeling or flaking paint isn't just an eyesore—it's often a warning sign of deeper issues like moisture damage, poor surface prep, or extreme temperature fluctuations. Left untreated, it can lead to further deterioration, exposing surfaces to mould, mildew, and structural weakening.

Can I paint over old flaky paint?

Peeling paint must be removed prior to applying a fresh coat of paint to ensure proper adhesion. For Best Results: Refer to the how-to for guidelines on removing peeling paint. Using a scraper or 100-grit sandpaper, remove any loose, cracked, or peeling paint from the damaged area.

Does primer stop paint peeling?

Well, an alternative to this drastic action is using a binding primer. A popular choice is Zinsser's Peel Stop, which is a water-based primer that penetrates chalky surfaces and helps to glue-down the edges of cracking and peeling coatings to the substrate so they can be successfully painted over.

What is the best sealer for peeling paint?

Zinsser Peel Stop 1-gal. Water Base Clear Interior/Exterior Binding Primer and Sealer (Case of 4) glues down peeling paint and bind chalky surfaces. Designed to seal cracked and checked surfaces for durability, it helps provide a sound surface.

What kind of paint goes over peeling paint?

For every decorating problem, Zinsser has the solution. Peel Stop is a clear, flexible bridging sealer for surfaces where peeling, flaking, dusting or chalking is a problem. It tightly bonds to old paint and problem areas forming a sound surface for new paint.

Should I remove peeling paint?

Peeling or cracking paint is not just unsightly—it can pose a safety hazard. As soon as you notice a problem, remove the peeling areas and start over with fresh coats of primer and paint.

Does peeling paint mean water damage?

Look for these water damage signs when trying to detect water damage in your ceiling: Peeling, bubbling, or flaking paint. Small hairline cracks or a larger, spiderwebbed pattern of cracks. Water rings, usually a light brown color.

Why is my wall flaking when painting?

Improper Painting Surface Preparation

The painting surface needs to be thoroughly prepared before the paint job is initiated. When the paint is applied on an unprimed or uneven surface, it will start blistering and peeling. Proper prep work is a must if you want to avoid this.

How do you make paint not flake?

To avoid peeling paint, make sure to properly prep the surface beforehand. Take a damp sponge with a bit of dish soap and gently clean the area. Allow the surface to dry completely before adding your first coat of primer or paint.

Why are there flakes in my paint?

The cause of flakes and particles in paint and lacquers.

New paints and lacquers dry quicker than before. Paint tends to stick to a plastic roller grid or plastic lid of wall paint packaging and dry. Flakes easily come off and fall back into the paint. And boy, do we hate hard particles in paint!

Will Kilz stop peeling paint?

Over time, fluctuating temperatures and humidity levels can make paint peel. For spaces where this is normal like kitchens, using KILZ 3® Premium Primer (known for its exceptional adhesion and durability) before you paint can help ensure your paint job lasts longer.

What is the best primer to stop peeling?

Peel Bond is a great bonding primer that can be used when you need to apply a topcoat over a surface that you are concerned it may not stick to.

What happens if you paint over old paint?

If the old paint is flaking, bubbling, or peeling off, it might not be a good idea to paint over it directly. This is because the new layer of paint might not adhere properly to the surface, leading to an unattractive and uneven finish.

How to fix flaking paint?

It's best to scrape off peeling paint with something like a 5-in-1 tool, then go over the area with sandpaper. If you need to, use drywall compound or spackling to repair any holes, and sand the area again. Then, finish with primer and top coat.

What is a good bonding primer?

If you have various stains, shellac Bonding primer is the ideal choice. It can be used to cover rough surfaces and old varnish as well as metal and ceramic.

What does flashing mean when painting?

Flashing, or 'the halo effect', is when patches become visible on a painted surface in certain lights/angles. Flashing appears when two areas of a painted surface have been applied differently. In the example shown below, the wall was originally painted using a roller and has since been touched up using a paint brush.

Can you sell a house with peeling paint?

Give it a freshening if the paint looks dull or faded. Paint flaking or peeling can instantly ruin curb appeal and give the impression that the house has not been well maintained. Your home could contain lead-based paint if it was built prior to 1978. It will need to have the paint removed to satisfy your lender.

How to tell if black mold has been painted over?

Discoloration or Stains

When mold has been painted over, it can start to show through the paint. It often looks like stains on the wall that take on a yellow or brown color. You'll likely notice these stains through light-colored paint or on the ceiling.

Does peeling paint mean damp?

For earlier signs of damp, you might notice a musty smell or your walls could feel cold and wet. Another sign is discolouring or peeling of your paint or wallpaper. You might also find that plaster is fragmenting too. While excessive condensation isn't a guaranteed sign of damp, it can be a cause of it.

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