Why has my respray changed colour?
Also calledBleaching, Polyester bleeding, Staining, Staining/Plastic Bleed-Through
A repair that matched when you collected it and has since changed colour has one of two causes. A yellow or brown patch over the repaired spot is usually the body filler. Too much hardener in it stains the paint above. This is called bleaching. A repair that has faded all over points to the paint. Low-quality refinish paint with little UV protection fades.
What kind of repair does it need?
That area is painted again. For a filler stain, the area is sanded back, sealed off with an isolating primer, then painted. For a faded repair, the panel is painted again with paint that will last.
This is a workmanship fault. The question is not what it costs you. Paid work must be done with care and skill, so it belongs back with the shop that did it.
What to do next
Pursue this even if it has been a year or two. Paid work must be done with care and skill, and nobody expects a respray to change colour that soon. Find your invoice and check what paint was listed. Photograph the repaired panel next to an original one in the same light.
Sources
- PPG GBpaint maker
Yellowing of the surface corresponding to areas of filler in the substrate.
- PPG ANZpaint maker
Rub down the affected area to the surface of the filler, seal with isolator or epoxy primer and repaint
- Sherwin-Williams Automotivepaint maker
Sand affected area, isolate with two component undercoats and refinish.
- Standoxpaint maker
Refinish paints of low quality with little or no UV blocker
- Spies Hecker (Axalta)paint maker
Respray. Recommended is a solid-color 2-coat system
- Queensland Government (Office of Fair Trading)government
A business guarantees they provide their services with due care and skill.
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