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Rising damp |
Usually seen around the base of walls. Underground
water is sucked up by capillary action and trapped
behind ordinary paint. Causes paint peeling
and discolouration. |
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Fungus |
Ordinary paint attracts and holds dirt particles
and water. Fungus feeds on these dirt particles
damaging the paint. |
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Blistering & peeling |
Ordinary paint forms a waterproof seal so water
and water vapour collect behind it.
The pressure causes the paint to tear or blister. |
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Discolouration & fading |
Ordinary paint is easily damaged by alkaline in
water trapped behind the paint surface. Pigments are
very vulnerable to fading caused by solar radiation. |
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Efflorescence |
Caused by water soluble salts leaching through
damaged paint. The water evaporates and the
white crystals are left behind as efflorescence. |
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Chalking |
Ordinary paint is very vulnerable to chalking,
especially inferior quality formulations.
Pigments are eroded from the surface by
weathering, leaving chalk filler exposed. |
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Dirty paint |
Ordinary paint is elastomeric. It softens, expands and
contracts, trapping atmospheric dirt. |
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