Removing rust underneath vehicle.

Apr 22, 2004 2 Replies
D

Is there a proper way to remove rust from all areas possible underneath an older vehicle so I can spray Zero Rust, which is just a rust proof paint. Yesterday I purchased a 3" rough wire brush for my 5" grinder and rough tested it last night on metal, it sparks a lot and is difficult to control. I have thought of sand paper, grinding wheels, but am not really sure what is the way to go.



Any body out there who can lead me in a direction as to what are the proper tools to remove rust. Also remember I will be working underneath a vehicle.



Thanks in advance Denny B


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J

Have a look at this stuff.

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It's expensive, but you don't have to get rid of all the rust before using it, just the loose scale.

Try the end-on type of brush rather than the circular ones. Wear safety glasses.

If you have access to air tools, that's the way to go.

Keep in mind that you may run out of metal while chasing rust. In other words when all the rust is gone you have a hole. Whatcha gonna do then?

Better plan for it.

Also, where under the vehicle? If this beast has been through a salt-laden Canadian winter, the first thing to do is pull up the carpets and check the floorboards. Salt slush from boots and overshoes soaks into the carpet which acts like a poultice, holding saturated brine against the metal. You may be doing some rust chasing topside!

Been there, done that.

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P

POR-15 and the like cover up the rust and inhibit it, the best thing to do is to actually get rid of the rust. Sandblasting works great, as does a phosphoric acid based metal conditioner.

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