How to paint over oil-based paint on walls?

Hi
If patches are minor, you could possibly use an aerosol spray stain block and then apply paint.
If more serious than minor patching and if a suitable key coat primer can not adhere to the patching, then the oil paint in the patching areas may need to be stripped back, patch repair carried out and re-painted.

I would first send down the wall and use tsd mixed with water wash the wall down leave to dry then use latex bonding primer it has to be bonding primer cause it's the only thing which works and actually covers over the oil based paint and I'll do 2 coats of that and leave to dry.

I would recommend zinsser 123 bulls eye
Which bone to any surface and is water based
So once it drys you will then be able to paint straight over it with any water based emulation you’d like
I hope this helps

If its only a little part of the wall that has the oil based paint I would of sanded down wiped and then done a white wash the matt paint would of went over

Unfortunately water based products will not adhere to a oil based surface as water and oil don't mix I would recommend first lightly sand wash with tsp and then a latex bonding primer let it dry and paint preferably with a latex emultion like Leyland super latex

Hi there you must use under coat

Most acrylic primers (ie leylands/johnstones acrylic primer/undercoat to be more specific) are ok to put on walls. A good key of surface with fine grit sand paper, dust down and a coat of acrylic primer will adhere to gloss surface. Then after acrylic primer is dry ok to go over with emulsion of choice. Hope this helps

I recommend coating the walls with a Zinsser primer.

Your best choice is to rough sand most likely with a sander to remove as much as you can and get it rough enough to grip the new paint .

Then base coat/undercoat

Then 2coats of dulux Matt

Use primer then undercoat and then the final coat. .

Hi.
I can recommend sand wall using P120 sanding paper and use DULUX TRADE ALKALI RESISTING PRIMER.

Ernest Rolnik Painting Services

Paint walls in zinsser B.I.N primer first

First prep the surface, lightly sanding it. Then you would need to use a sponge and trisodium phosphate mixed with water on the walls first to remove any existing oils. Let the walls dry. Then coat the walls with a latex or oil bonding primer. Allow to dry then then two coats of latex paint.

Sand the wall slightly and then apply trisodium phosphate using a roller and then go ahead and apply primer

First sand the area to be painted, than clean the area to remove grease and smoke with Trisodium Phosfate an efficient cleaner , after the surface is dry put a coat of oil base primer, when primer is dry apply two coats of oil base paint.

Use paint striper solution and the you begin to apply the new paint

1 Deep clean with TSP before using water-based over oil-based paint
2 Always prime when using water-based over oil-based paint.
3 Apply at least two coats of water-based paint over oil-based paint.

Primer is useable

Hi,
Whilst lining paper would do the job, a good quality primer such as Zinser Bin would suffice as a base for new good quality paint.
Hope this helps
Dave

First, lightly sand the surface and clean it with a sponge dipped in TSP (trisodium phosphate) mixed with water.
Use the bonding primer
Bonding primers are best because they are formulated to adhere to glossy surfaces, such as oil-based painted finishes. If you use a very high-quality bonding primer, you might be able to paint over oil-based paint without sanding, but always read the primer's instructions.

First, lightly sand the surface and clean it with a sponge dipped in TSP (trisodium phosphate) mixed with water.
Allow the surface to dry.
Coat it with an oil or latex bonding primer. ...
Allow the primer to dry.
Coat with two coats of high-quality latex paint.

If you would have to give a first coat of primer and then finish it with emulsion paint

Water based acrylic latex paint and other oil based paints

Use Nitromors it works a dream on removing any type of paint.
Apply a coat, Leave it for 40 minutes. Do not allow to dry out. 2. Remove blistered/softened point with scraper or shavehook.
Use protective gloves do not get it on your skin

It's unusual that oil-based paints are used on walls! Zisser stain-block primer paint may do the job.

If you want to paint over oil paint, you don't always have to remove the oil paint. If the old oil paint has hardened well and is still intact over the entire surface, you can simply paint over it with a new colour. In this case, the old oil paint will not come off. Paint the area as usual.

If you suspect that the existing paint on your walls is oil-based, it can be challenging to paint over with water-based paint like emulsion. However, you can successfully paint over oil-based paint with the right preparation and primer. Here's how to proceed:

Materials and Tools:

Oil-Based Primer: Look for a high-quality oil-based primer that is suitable for interior use. This type of primer is excellent for adhering to oil-based paints and creating a surface for water-based paint to adhere to.
Paint: Choose the water-based paint (like your matt emulsion) that you want to use for the walls.
Sandpaper: Medium-grit sandpaper (around 120-150 grit) for sanding the walls.
Painter's Tape: To protect trim, windows, and other areas you don't want to paint.
Drop Cloths or Plastic Sheeting: To protect the floor and surrounding areas.
Paintbrushes and Rollers: For applying primer and paint.
Safety Gear: Gloves, eye protection, and a mask.
Steps:

Prepare the Room: Remove furniture or cover it with drop cloths or plastic sheeting to protect it from paint splatter. Also, use painter's tape to mask off areas you don't want to paint, like trim and windows.

Clean the Walls: Ensure the walls are clean and free of dust, dirt, and grease. You can use a mild detergent and water to wash the walls if needed. Rinse thoroughly and allow them to dry completely.

Sand the Walls: Lightly sand the walls with medium-grit sandpaper. This helps scuff up the existing oil-based paint to create a better surface for the primer to adhere to. Wipe away the dust with a clean, damp cloth.

Apply the Oil-Based Primer: Apply a coat of oil-based primer to the entire wall surface. Be sure to use proper ventilation and follow the manufacturer's instructions for drying time. Oil-based primers are excellent for promoting adhesion to oil-based paints.

Paint with Water-Based Paint: Once the primer is fully dry, you can paint over it with your chosen water-based paint (e.g., matt emulsion). Apply two coats for good coverage, allowing each coat to dry according to the paint manufacturer's recommendations.

Inspect and Touch Up: After the paint has dried, inspect the walls for any imperfections or areas that may need touch-up. Water-based paint typically dries faster and is easier to work with, but it's essential to ensure even coverage.

Using an oil-based primer specifically designed for interior use is a safe and effective way to ensure that your water-based paint adheres well to the existing oil-based paint on your walls. You do not need to put up new lining paper unless the walls have significant imperfections that you want to hide or if you prefer the textured look lining paper provides.

By following these steps, you should be able to successfully paint your walls and achieve a smooth and durable finish over the existing oil-based paint.

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.

sand wall down good and make sure you get a good sand down al over wall or it start to peel ..
Then after acrylic primer is dry ok to go over with emulsion .. best best to go an look would be deluxe B&Qs spectacled place s like that

ALKALI RESISTING PRIMER
Zinsser Bin

Firstly give a light sanding then clean and apply a primer. Allow to dry then apply two coats of emulsion paint.

First we're to going to sand it, then add a normal water base undercoat. Then re-coat it.

Easiest way plain wallpaper than paint

recommend sanding the sheen off your oil-based surface, then applying an oil-based primer to serve as a bridge or buffer between the old paint and the new.

Painting over oil-based paint on walls can be tricky, but it's definitely possible with the right approach. Here's what you can do:

1. **Clean the Surface:** Before doing anything else, make sure the walls are clean and free of dust, grease, and any other contaminants. You can use a mild detergent and water solution for this purpose.

2. **Sand the Surface:** Lightly sand the walls to roughen up the surface and improve adhesion. This will help the new paint grip onto the old oil-based paint.

3. **Test for Adhesion:** As you've already tried, wiping the surface with white spirit can help determine if the paint is oil-based. If the paint doesn't budge, it's likely oil-based.

4. **Use a Bonding Primer:** A super-grip or bonding primer is indeed the best option for painting over oil-based paint. While many of these primers are labeled for use on wood, metal, and ceramic, they can also be used on walls. Look for a bonding primer that explicitly mentions it's suitable for use on walls or all surfaces.

5. **Apply the Primer:** Follow the manufacturer's instructions for applying the bonding primer. Typically, you'll need to apply one or two coats, allowing each coat to dry completely before proceeding.

6. **Paint with Latex Paint:** Once the primer is dry, you can paint over it with your desired latex or water-based paint. Make sure to choose a high-quality paint suitable for walls and follow the manufacturer's instructions for application.

7. **Consider Lining Paper:** If you're still experiencing adhesion issues or if the walls are in poor condition, you can consider putting up new lining paper and painting over that. This can provide a fresh, smooth surface for painting.

8. **Test in an Inconspicuous Area:** Before priming or painting the entire wall, it's a good idea to test the adhesion of the primer and paint in a small, inconspicuous area to ensure satisfactory results.

By following these steps and using the appropriate bonding primer and paint, you should be able to successfully paint over oil-based paint on your walls. If you're unsure or hesitant, consider consulting with a professional painter for advice or assistance.

You can use Zinsser Bulls Eye 1-2-3 Primer, which is suitable for both interior and exterior surfaces, including walls previously painted with oil-based paint. It's a versatile primer that adheres well to various surfaces, providing a strong base for your topcoat. Make sure to follow the manufacturer's instructions for application and drying times. Once the primer is dry, you can paint over it with your desired emulsion paint. This should help you achieve a smooth and long-lasting finish on your walls without the need for lining paper.

Lining is in my opinion the best option, you can buy a sealer but expensive and not always successful

Sand the wall using a light sand finish.
Apply an undercoat to the complete wall
Apply your Matt paint.

You can use it on wall just and like a dust coat let it full dry the add a next based coat and you should be okay from there on