Why can I still see filler through paint?

If this is not done, what tends to happen is the moisture from the paint gets absorbed on the surface – the filler will be more porous than the surrounding wall – undiluted – the paint will dry quickly and you will get a halo effect where the outer edges of the filler will be evident.
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Why is my filler show through paint?

Different fillers have varying levels of absorbtion as does the original surface of the wall. That means when you paint over it the paint behaves in a different way on each surface. Ideally when you use filler you need to prime it with a watered down solution of your top coat.
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Can polyfilla be painted over?

When painting over pollyfilla I always seal it first, but wetting the surface of the polyfilla and then going over with a watered down emulsion. Otherwise the polyfilla sucks the moisture out of the paint and you get blistering, which is what I imagine is causing the problem in your case.
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How do you seal filler before painting?

Make sure that all filled areas are rubbed down smooth and level. You will need to prime the filler before painting to prevent subsequent coats being absorbed more rapidly than on other areas. Use a coat of Dulux emulsion thinned 10-20% with clean water. Once this is dried you can apply a full coat of Dulux emulsion.
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Can you primer over filler?

Do not proceed to Primer Filler stage until filled area is even. Adding body filler AFTER primer filler should be avoided to prevent possible adhesion, staining and shrinkage concerns.
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Painting over filler - PRIMING filler - MIST coat ( Avoid FLAKING Paint )



Can you paint over deep gap polyfilla?

It can be painted over.
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Can you paint directly onto filler?

If the filled area was very large I might wack a thinned coat of paint over it just to make sure that it all sealed off properly and to check it looked OK but I wouldn't normally over small areas. As a rule I put 2 coats over filler otherwise it can flash.
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Will more coats of paint hide imperfections?

Finally, you may need an extra coat or two of paint to fully cover any flaws. Most residential painting jobs will require two coats for the best results, but a third may be necessary, especially if you're painting over a pre-existing darker color with a lighter shade.
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How long should fillers dry before painting?

Ensure the filler is touching both sides of the gap. Run a wet finger or knife along the filled line, pushing it into the gap. Use a damp cloth to remove any excess. Allow the line to dry at least 30 minutes before taping and/or painting.
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Can you paint gloss on filler?

Wood filler (if brown) will need undercoating before glossing over. It does stick to gloss itself. The one I use is cellulose-based. Decorator's caulk - if you fill gaps behind skirting boards with it on walls prone to black mould you will need to paint over it as it WILL go mouldy .
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Can you paint over filled holes?

After you've filled all the nail holes, you can paint over them immediately. You need to prime these little spots, or you can use your paint as a primer by first painting over the spots, letting them dry and then rolling out the wall like you normally would.
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How long leave fillers before sanding?

Give the filler at least 30 minutes to harden; a full hour is even better. True wood fillers may dry so hard that you'll have a tough time hand-sanding it.
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How do I stop plaster showing through paint?

New plaster needs to be mist coated with a coat of contract emulsion (thinned with water to around 30%). And then once dried it needs 2 coats of vinyl matt or other emulsion of choice to acheive a solid finish.
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Can I sand down polyfilla?

Take a foot of 80 grit paper(wrapped around the 2x1") and sand in all directions. Feel for flatness with your hand. Refill any low spots then sand again. When its all flat, refill, but just a very light wipe to fill the scratches from the 80 grit, then sand again with 120.
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Can you water down filler?

Answer: Diluting filler

Fillers typically come pre-packaged, so diluting filler is unlikely. However, if you are concerned, I suggest discussing your concerns with your injector. Otherwise, be sure to see a reputable provider in your area.
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Is 3 coats of paint too much?

Research the color you're interested in to get a sense of how tricky it is to work with. Three Coats– In this last scenario, three coats would actually be the absolute minimum number needed. This most labor-intensive case is when you are painting a light color over an existing dark color.
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How many layers of paint is too much?

The general rule is that you should use two coats of paint. However, this rule changes based on the color, quality of the paint you use, whether or not you used primer, and the type of surface you're painting.
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What paint finish hides imperfections the best?

Flat paint has a velvety, matte look and is the best choice to hide any wall imperfections.
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Do you have to prime over filler?

You may need two coats. Sand it smooth - the holes should filled with the filler slightly proud so you can sand it down level with the wall without being able to see the edges of the holes - and paint. It says no need to prime so no undercoat, etc is required.
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How do you stop decorators caulking through paint?

I would first try to sand with fine sandpaper and see if this roughens the surface to remove or reduce the shine. Alternatively, touch up with primer and then redo with the paint. No need to dig the caulk out.
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Can you use emulsion on filler?

When using filler it is always good practice to thin down the first coat of emulsion when painting the surface.
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How long does wall filler take to set?

Finish with a wet knife and leave to set – normally 60 minutes. If necessary, sand down when fully dry.
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How big a gap can you fill with polyfilla?

Polycell Deep Gap Polyfilla is the easy way to fill deeper holes, up to 20mm, in one application. Easy to sand for a smooth finish. Fills holes up to 20mm and accepts nails or screws.
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Can you paint over polyfilla flexible gap?

The product sets fast and can be sanded down and painted over.
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