Having spent a fair amount of time working in my garage and
on cars over the past few years these are the spray cans I find necessary:
PB Blaster
It is absolutely excellent at removing rust and loosening
stuff. It acts as a great penetrating lubricant. Sometimes you need to add heat
to get the best effect. This means having a blow torch on hand can be very
helpful.
Brake Cleaner
This cuts through grease like nothing else. You can go
pretty cheap here, although I have found that the more expensive stuff does a
bit better job on the first spray. Generally, a few good sprays and a wipe with
a rag and the metal looks new. Terrible to breathe in through. You want to be in
a well-ventilated area when you do this.
Rubberized Paint
3M Professional Grade Rubberized Undercoating is my brand of
choice. This stuff can coat on thick. I’ll have picture of it up later. It
allows you to coat those hard to reach and difficult metal pieces. When you’re
doing a lot of car work you often come across a lot of rust that you could wire
brush out of the way. I wish we had this when we had the engine out of the
Forester. There was some rust that was fantastic mess at the time.
I’ll update this to reflect how it stands up long term.
Right now though I can say it coats well and looks like it will work quite well.
But yeah, for someone who plans on doing work on old cars,
maybe even new ones, I would suggest having these on hand. The rubberized paint
will help with all sorts of future rust issues.
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