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# 207995 22-Jan-2017 16:30
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Painting three wardrobes, 6 bay mdf and two two bay wooden. One shelf in the wooden has two lots of bleeding. Thanks kids. Sealer is water based with linseed oil in it. Shall I wipe with white vinegar or turps to dissolve it? Bleach?

Had this on a garage floor which I dissolved with turps but unsure re water based undercoat.

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mdf

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  # 1707519 22-Jan-2017 16:38
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You don't normally use a sealer on wood. The stain is in the wood or on an existing coat of paint?

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  # 1707521 22-Jan-2017 16:47
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Get the undercoat with 1,2,3 on the can. That seems to stop anything bleeding thru at all.





Richard rich.ms

 
 
 
 




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  # 1707522 22-Jan-2017 16:47
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mdf: You don't normally use a sealer on wood. The stain is in the wood or on an existing coat of paint?


Ah. I want them all gloss white hence I assumed I'd need a sealer/undercoat.

They are stained and I've sanded them

mdf

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  # 1707526 22-Jan-2017 17:00
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Primer for wood, sealer for anything porous (gib and concrete).

Start with a coat of acrylic primer undercoat (e.g. Resene quick dry). One coat will be enough for timber, I always do two coats on MDF.

If the stain is old, you should be okay. If you get some bleed through you will likely need a further coat of oil based undercoat. This acts as a barrier layer.

Then two topcoats. If you haven't already bought the paint, consider a semi rather than a full gloss. It's much more forgiving and easier to get a nice looking finish.

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