What happens if you polish matte car paint?
A shiny patch on a matte car usually means something rubbed it. Polish, wax, a machine or hard rubbing in one spot. That flattened the texture that makes it matte, so the spot now reflects light. It is not dirt, and cleaning will not bring it back.
What kind of repair does it need?
Painting the panel. No product puts the matte texture back, because it was part of the layer that got rubbed away. Very light shine may improve with a matte sealant. A properly polished patch needs a respray.
Matte and satin cannot be polished, so there is no cheaper step to try first. The panel is sprayed again, with the sheen checked on test panels first. It needs a shop certified for matte work.
What to do next
If a detailer or car wash did this, take it back to them before you pay anyone else. This is damage they caused. Until then, use only matte shampoo and matte sealant. Keep it out of automatic car washes. Matte paint should never be cleaned by machine.
Sources
- Kiacar maker
Using excessive pressure can cause paint finish blemishes to show.
- PPG / Mercedes-Benzpaint maker
Test panels MUST be produced using the intended hardener/thinner/ratio/spraygun combination…
- I-CAR RTSindustry training body
A major aspect of success on semi-gloss or matte clearcoat is matching the gloss level.
- BMWBlogmedia
Polishing, an abrasive process, is meant to smooth out the surface and level off imperfections.
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