If you put latex paint over oil, you'll end up with that fruit roll-up look all over your house because they just can't adhere. Since they're not compatible, they won't form a good bond. 15-30 days after painting, you'll even be able to peel that paint right off after getting the surface wet. Yikes!
The point of an oil primer is that you can then paint anything over it. Painting latex paint over oil paint will end up either peeling off, as shown, or if the oil paint was scuffed/scoured, you can get micro cracking of the paint which shows up and is a pain to get rid of.
Latex paint (and even other oil-based paint) can be successfully applied over older oil-based paint as long as the surface is fully cured and there is nothing inherent in the coating that prevents another layer of paint to be added.
Sherwin-Williams Duration is the longest-lasting exterior paint brand, according to Consumer Reports. This wonderful 100% acrylic latex paint resists fading, cracking, and peeling while offering the added benefit of being self-priming.
Oil-based paints are affected by galvanized steel and concrete. Wood surfaces can produce natural oils which can prevent paint adhesion. Smooth surfaces are unable to form a mechanical adhesion with some paints, so any layers applied to them could peel off immediately.
This is the most important step. Apply a bonding primer that is specifically designed to promote adhesion between oil-based and latex paints. A good quality primer I like to use is Stix. I also use this on my kitchen cabinets before painting them.
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.
Method 1: Use Spray Varnish
First, lay down some old newspapers or anything else to protect surfaces around your work area. Next, hold the can about 12 inches away from the painting and evenly spray the surface. Allow the first coat of sealer to dry completely before applying a second coat.
If the peeling is due to poor adhesion or surface preparation issues, it is generally possible to paint over it. However, if the peeling is caused by moisture, mold, or other structural issues, addressing the root cause is essential before applying new paint.
One disadvantage is their strong odor. Oil paints also take longer than latex paints to dry compared, which can be a significant inconvenience for anyone on a strict timeline. Finally, oil-based paints tend to cost more than latex paints upfront, making them less ideal for anyone on a budget.
Oil-based paints are no longer legal in Virginia and five other states. This is because oil paints create a ton of pollution, both in the air and in the ground. They have a lot of toxic fumes that make them dangerous to be around before they dry, especially for the painting contractors who use them.
Oil-based paints allow for greater open-time (or length of time the paint may be brushed before it sets), exceptional flow & leveling (finish smoothness) and resistance to abrasion, once cured.
In addition, water-based paint is preferred when covering an oil-based product because it has a faster drying time and resists fading in the sunlight for exterior applications.
Peel Stop® tightly bonds to old paint and problem areas forming a sound surface for new paint. Peel Stop® forms a tough acrylic film that stays flexible and helps prevent peeling by letting moisture escape. A clear sealer, Peel Stop® works like nothing else to stop peeling problems on old or new surfaces.
If you must apply high-quality latex paint over oil paint, it's best to do so with a latex primer designed for use with both latex paint and oil paint. Using a paint primer can help ensure that latex and oil paint adhere to each other properly and create a lasting, durable finish.
If the paint does NOT come off, it is oil-based paint and you will need to prime the surface with a bonding primer before applying latex paint. The primer can be latex, but it has to be a product that is made to prepare the surface and help with adhesion and that says “bonding” on the label.
Oil-based Resists Peeling paint is known for its extreme durability. Painting your home's shutters? For wood shutters, stick with oil-based Resists Peeling paint, which will adhere better to wood surfaces. For vinyl and plastic shutters, choose latex Resists 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.
Pure Acrylic Paints: Pure acrylic paints, in general, offer higher durability. However, it's important to note that not all acrylic resins are created equal. Some variations, like styrene acrylics and elastomeric acrylics, offer superior durability in specific contexts.
Should I paint the front door satin or semi-gloss? Satin finishes are great for hiding imperfections and providing an elegant look that can last longer than other types of paint. Semi-gloss is more durable, making it ideal for high-traffic areas such as entryways.
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.
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.
New paint will not improve the adherence of the suspect old paint coating. Rather it is likely to make it slightly worse due to the stresses imparted as the new paint coating dries. Waterborne paints take a few days to develop full adhesion especially if applied in heavy coats in dubious weather.