Few things are more frustrating than seeing fresh paint start to peel or bubble soon after application. These problems not only spoil the look of your walls but also signal issues beneath the surface. Understanding what causes paint to lose adhesion—and how to prevent it—will help you maintain a durable, long-lasting finish that looks professional year after year.
Why does paint peel or bubble?
Paint peels or bubbles when the bond between the paint film and the surface breaks down. This typically happens when moisture, dirt, poor preparation, or incompatible coatings interfere with adhesion.
Peeling means the paint is lifting away from the surface in flakes, while bubbling (or blistering) occurs when air or moisture pockets form beneath the paint layer.
What are the most common causes of paint peeling?
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Moisture intrusion:
Water from leaks, humidity, or condensation can seep behind paint, loosening its grip. -
Poor surface preparation:
Failing to clean, sand, or prime before painting leads to weak adhesion and early failure. -
Painting over glossy or dirty surfaces:
Paint struggles to bond to oily, dusty, or glossy finishes without proper sanding or deglossing. -
Incompatible layers:
Applying latex paint directly over oil-based paint without priming can cause peeling. -
Excessive heat or sunlight:
Direct UV exposure and heat can dry paint too quickly, weakening its bond. -
Trapped humidity:
Painting during humid conditions can seal moisture under the surface, eventually leading to bubbling or peeling.
What causes paint to bubble or blister?
Bubbling paint happens when air, heat, or moisture gets trapped beneath the surface during or after painting. The main culprits include:
- Painting on a hot surface or under direct sunlight
- Painting too soon after cleaning (when walls are still damp)
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High humidity or painting after rain
- Inadequate primer or surface contamination
How can I fix peeling or bubbling paint?
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Identify and fix the source:
Before repainting, locate the cause—such as leaks, condensation, or poor ventilation—and correct it. -
Remove damaged paint:
Scrape away loose or peeling areas with a putty knife, then sand smooth. -
Clean the surface:
Use mild soap and water to remove grease and dust, then allow the wall to dry completely. -
Prime properly:
Apply a high-quality primer or sealer to improve adhesion and block moisture. -
Repaint carefully:
Use premium paints like those in Randall’s Paint Collectionsapplying thin, even coats in ideal weather conditions.
How can I prevent paint from peeling or bubbling in the first place?
- Always clean and dry the surface thoroughly before painting.
- Use the right primer for your wall type (especially when switching between latex and oil-based paints).
- Paint only in mild, dry weather—ideally between 10°C and 25°C.
- Avoid painting on damp or sun-heated surfaces.
- Choose moisture-resistant or mildew-resistant paints for bathrooms, kitchens, and basements.
- Allow sufficient drying time between coats.
Proper preparation and product selection make all the difference in achieving professional, long-lasting results.
What type of paint resists peeling and bubbling best?
High-quality latex acrylic paints are ideal for most interior and exterior applications. They offer strong adhesion, flexibility, and resistance to cracking or peeling—especially when paired with a compatible primer.
Randall’s experts can help you find the perfect product for your wall type and environmental conditions.
When should I call a professional painter?
If the damage is extensive, or if moisture and adhesion issues persist after repairs, it may be best to hire a professional. Skilled painters can identify hidden causes and ensure proper surface treatment.
Explore professional help through our Services Pageor fill out a Painter Order Formto connect with trusted local experts.
Get Expert Help to Keep Your Paint Looking Perfect
Peeling or bubbling paint can be frustrating, but with the right products and preparation, it’s completely preventable. Visit your nearest Randall’s location or Contact Usto speak with one of our paint specialists.
Discover primers, sealers, and high-performance paints designed to resist moisture and maintain a flawless finish in our Collections
Protect your paint and your home—Randall’s has the premium products and expert advice you need for lasting, beautiful results.