Also known as: bleed through, staining, stains
Description
Original finish color or peroxide hardener from polyester body filler seeping through the topcoat, causing a discoloration of the new finish.
Origin and Potential Causes:
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Reaction of pigments from the original finish with solvents of the coat which has been applied on top of it.
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Contamination - usually in the form of soluble dyes or pigments on the older finish before it was repainted. (This is especially true with older shades of red.)
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Old finish not well sealed.
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Use of too much hardener in the polyester putty or filler.
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Insufficient mixing of the polyester putty or filler.
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