I'm about to paint a project. The frame I am painting is a combination of raw steel tubes and old frames I have a question about self etching primer. Can it be used on previously painted surfaces? I've never used it before, and have always just used regular old primer...
primer question
- Thread starter Bigcam59
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Bigcam59 said:
Acid Paint Primer?
Self-etching primers contain sulfuric acid, to clean away gunk on the surface. For this reason, self-etching primers are not recommended over clear coat finishes or existing paint. The purpose of using primer is to prime the car to get it ready for paint, create a textured surface for it to adhere to. You will be anything but ready for more paint if you use a self-etching primer on the existing surface as it will likely cause the edges to come up.
Metal Only
Use self-etching primers on metal surfaces only. The sulfuric acid in these mixtures can cause undesirable affects to the existing paint job. When applied to paint they can cause chipping and corrosion to the existing paint surface. This will require sanding as well as a fair amount of grunt work just to get the car ready to be primed again. For this reason you should not use self-etching primer on existing paint or gloss finish.
Read more: Can You Put Self-Etching Primer Over Clear Coat & Paint? | eHow.com http://www.ehow.com/way_5715470_can-ove ... z2CVP1Z7xd
