Difference between revisions of "Stain block"
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Usually one coat is enough, but not always. The very worst stains can require alternating coats of emulsion and oil paint of stain block. Since oil paint is slow drying, stain block is then preferable. | Usually one coat is enough, but not always. The very worst stains can require alternating coats of emulsion and oil paint of stain block. Since oil paint is slow drying, stain block is then preferable. | ||
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| + | ==Fire== | ||
| + | Staining of walls following a fire is a bit different to water staining, and aluminium primer is favoured. This forms a layer of aluminium flakes, blocking soluble staining and odour. | ||
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| + | ==See also== | ||
| + | * [[Paint]] | ||
| + | * [[Special:Allpages|Article Index]] | ||
| + | * [[Special:Categories|Article Categories]] | ||
Revision as of 19:02, 23 November 2010
Stains on emulsion paintwork often bleed through when painted over, and repeated coats of emulsion fail to block them. Any of the following can stop this happening them:
- dilute PVA
- a coat of oil based non-gloss paint, such as undercoat or eggshell
- Stain block paint
Usually one coat is enough, but not always. The very worst stains can require alternating coats of emulsion and oil paint of stain block. Since oil paint is slow drying, stain block is then preferable.
Fire
Staining of walls following a fire is a bit different to water staining, and aluminium primer is favoured. This forms a layer of aluminium flakes, blocking soluble staining and odour.