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.
Acrylic/Latex paint will not adhere to oil based paint, unless you sand it down or use a latex primer that is 100% acrylic and has high adhesion. Or you can use an oil primer and then 48 hours later paint over that with a latex paint.
Oil based primer is about as universal a product as exists. Latex, acrylic and alkyd regardless of sheen are all fine on top of it.
You can paint older oil-based paint without sanding, but it's not always the best idea. If the oil-based primer or paint is in good condition, you may be able to get away with just painting over it. However, if the paint is starting to chip or peel, you need to sand it down before painting over it.
Covering with water-based paint: You can't paint over oil-based paint with water-based paint directly, but you can after some crucial prep. Doing the correct prep: Always sand the glossy surface of oil-based paint before applying water-based paint. This step ensures better adhesion and a smooth finish.
You can use a latex primer over oil-based paint as long as it is a bonding primer. Bonding primers are best because they are formulated to adhere to glossy surfaces, such as oil-based painted finishes.
Oil over acrylic is fine with certain caveats, but acrylics over oil paints and oil grounds should be avoided. Oil paints form tight, water-resistant films that provide poor adhesion when acrylics are painted on top of them. We recommend avoiding this combination.
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.
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.
Applying layers of paint
Start by adding areas of shadow and light, fill in large areas with color, then work patiently, laying on more and more intense layers of color. You need to follow the golden rule of oil painting: painting "thick on thin" .
Use on interior and exterior surfaces including woodwork, drywall, plaster, paneling, masonry, brick, painted metal and properly prepared glossy surfaces†. Use under or over water-based or oil-based paints.
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.
The general or most commonly used oil painting mediums include Linseed Oil, Liquin and Walnut Oil. You can also get meglips, burnt plate oils, stand oils, blending and glazing mediums, impasto and cold wax mediums, solvent-free gels, damar varnishes and a product called Maroger Painting Medium.
Latex paint won't stick to oil-based paint and will eventually peel off, as shown in the picture above.
High Exposure to Sunlight. Exposure to intense sunlight makes oil-based paints vulnerable to cracking. Elastic and latex paints tend to contract and expand when exposed to direct sunlight, which weakens their adhesive bonds.
Interior | Premium Stainblocking | Paint and Primer in One. Our most technologically advanced paint and primer in one, KILZ® Tribute® is 100% acrylic, low VOC, and offers both excellent stain-blocking performance and exceptional durability.
(Note: Bonding primers are not recommended for use over peeling paint).
Interior | Exterior Primer. KILZ® ADHESION Primer is a water-base, modified-acrylic primer specifically formulated to bond to a variety of 'tough-to-paint' surfaces.
A question we get asked often is, “Can you paint latex over oil?" The answer is “yes”. But you can't treat it like latex or water-based surfaces. 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.
They are Sherwin Williams Extreme Bond Primer, and Behr Bonding Primer. These top two primers were the very best at bonding in both the 24 hour test and the 38 day test.
If you encounter oil-based paint coating on your walls, doors, or antique furniture, you can easily paint over it with water-based or latex paint by following four steps.
Ensure that the oil-based primer is fully cured before applying acrylic paint. It's also a good idea to lightly sand the surface to promote better adhesion of the acrylic paint. This combination provides a solid base for the paint and can result in a durable finish.