View Full Version : flash rust
12-01-2005, 06:54 PM
If a car is sitting in a new garage that is sealed pretty well how long will bare metal last b4 is starts to get flash rust? How long till putting etch primer would be a waste and have to re-sand.
12-01-2005, 09:55 PM
The answer to your question depends on several unknown factors. What is the humidity in that new garage, the temperature etc.
If I were using etch primer I'd want to have it primed within about a week just to be safe. If you coat it with Picklex you can let it sit for months then epoxy prime it.
12-02-2005, 12:35 PM
If 'new garage' also means new concrete floor, there's a lot of moisture coming out of that slab.
12-04-2005, 01:44 PM
I have tried what you want to do and my body panels started to show some flash rust after only a week. I rubbed it off with a red Scotchbrite pad and sprayed a Picklex-like liquid on all the bare metal. Wiped it down with a clean, moist baby diaper and let it sit. Metal is slightly gray after treatment. No flash rust in over six months. :p
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