Can you paint over gloss paint with emulsion?
If you paint over gloss paint with normal matt emulsion, it just won't stick and just slides everywhere. Even if you do manage to cover it, the shininess of the gloss eventually comes through again.
The best thing for you to do next is to sand the wall with an 80 grit sand paper, prime and then apply the paint. Behr Ultra is latex based, therefore will not adhere to oil based paint. Also, like PatInPaint mentioned above you will also have to do this if you are painting over is a semi-gloss or high-gloss finish.
- There's a basic rule of thumb to follow when choosing paint sheens: The higher the sheen, the higher the shine — and the higher the shine, the more durable it will be. Flat paint has no shine; high-gloss is all shine. In between are eggshell, satin, and semi-gloss, each with its own practical and decorative job to do.
- Painting with an oil based paint over latex is OK but doing the reverse will cause you grief for many years to come since any further coats of paints applied will stick to the latex only. Sanding the walls will improve adhesion which is the only sticking point to consider when applying latex over oil.
- Apply a coat of primer. If the varnish is dark and very hard to cover, you may want to apply 2 coats of primer. It is best to use an oil bonding primer to paint over the varnish. The oil bonding primer will create a good surface for the paint to stick.
Can I use a flat paint as a primer and then paint over with a semi-gloss? Yes you can as long as the flat paint is compatible with the original paint. Example- The original paint is a latex and the flat is latex then everything will be fine. You can use any sheen over another as long as the paint is of the same type.
- There actually is no difference between latex and acrylic paints because there is no latex in latex paints. Let me explain. All water based paints today are referred to as "latex", even though there is absolutely no latex rubber in the formula. Better quality paints have more acrylic resins than vinyl.
- Typically the term "enamel paint" is used to describe oil-based covering products, usually with a significant amount of gloss in them, however recently many latex or water-based paints have adopted the term as well. Most enamel paints are alkyd resin based.
- Rinse well and towel dry. Then soak a cotton ball, Q-tip or soft rag in alcohol and rub it back and forth over the cleaned area. If paint comes off, it's latex and another coat of the same is in order. If the paint doesn't come off, it's oil-based, and an oil-based primer is a must.
Apply a primer if the satin paint is a darker hue than the color you are painting. For example, if your satin paint was a bold red and you are painting with a white flat paint, priming the surface with a latex primer will allow you to cover the old paint with fewer coats.
- 180 to 220 Grit Sandpaper: Finer grit sandpaper is great for removing the scratches left by coarser grits on unfinished wood and for lightly sanding between coats of paint. 320 to 400 Grit Sandpaper: Very fine grit sandpaper is used for light sanding between coats of finish and to sand metal and other hard surfaces.
- Use a mini foam roller to apply three thin coats of semi-gloss latex paint. Allow six to eight hours in between coats. It is important that you sand in between coats if you have any drips or residue on the piece. Use the same sanding block and a NEW tack cloth.
- Prime Before You Paint. Any latex paint color you've used on your walls can work for refurbishing wood furniture, but it is important to use some of that leftover primer first to get a smooth finish and cover well. Leftover paint can also be used as a primer.
Updated: 24th October 2018