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Monday, January 11, 2016
Rusty Honda Makes a Comeback
Almost Everything's Car of the Day is a 2000 Honda Accord Coupe. The owner did a great job fixing damage himself. However he soon found his brand new hood was rusting.
The hood had been primed but not painted. It is a common misconception that primer prevents rust. It is true that primer is essential in the fight. But primer and paint are designed to work together, separately they fail. Primer "bites" into metal and plastic to establish the bond between a surface and paint. Primer is porous, full of microscopic holes. These holes allow the paint to sink in and connect. Paint is not porous and keeps out water and rust.
It is critical to paint a primed part as quickly as possible to prevent rust. Once rust starts, it is like cancer. It is hard to fight and can return and grow again.