Bleaching
Description
Yellowing of the surface corresponding to areas of filler in the substrate.
Cause
Excess quantities of peroxide used in the filler.
Prevention
Use a feed machine for mixing filler, or take care to calculate and measure peroxide quantities accurately.
Rectification
Rub down the affected area to the surface of the filler, seal with isolator or epoxy primer and repaint.
Other Defects:
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