Rust Resistance Drivetrain Painting?

[THE "10" SILVERADO]

Hey,
I am going to be braking into my driveshaft soon to replace my u-joints and in the process I decided to repaint it along with my rear axle, and sway bar, while sanding the surface rust off of most of my frame and get the (falling off) undercoating off of everything....when I decide to repaint all of the sanded parts is there any special paint that is for automotive parts? I was thinking maybe metal rustoleoum paint but just wanted to hear some other input....and besides sanding the rust off of those parts is there any other prep I need to do to get them ready to paint?

Thanks

[lindstromjd]

Use POR-15. It's expensive, but works awesome.

[TheWhiteElephant]

Quality work all starts with proper surface preparation--meaning a very clean surface to start with. Depending on how much oil and grease are on the surface, start by degreasing the parts completely. Afterward, you can wash the surface with soapy water. If you have limited tools, just wire wheel everything to knock off the rust. You can use an assortment of wire brushes, coarse sand paper or discs and scrapers to help. After all the rust is off, clean the surface of any oil/grease that might still be on there. Paint thinner on a clean rag works very well.

After it all dries, you can definitely use Rustoleum. I've used it before on frames and other undercarriage and engine compartment parts with great success. I have painted axles with it using a brush with a Rustoleum quart and was very pleased with the final result. You can use spray cans or buy it in quarts and brush it on. Rustoleum is a very good product, especially for us budget-minded folks.

One thing about undercoating--it is very tough to remove, especially if it is the tar-based stuff. Soaking it with paint thinner and then getting on it with a scraper works very well.

The last thing I would highly recommend is that you use semi-gloss black as opposed to gloss black, especially on the chassis and undercarriage. Gloss paint brings out ALL the minor imperfections while semi gloss does a good job of hiding any imperfections in the surface. Semi gloss is the same as underhood black that Eastwood sells.

[THE "10" SILVERADO]

Originally Posted by TheWhiteElephant

One thing about undercoating--it is very tough to remove, especially if it is the tar-based stuff. Soaking it with paint thinner and then getting on it with a scraper works very well.

Yeah, some of it will be a problem because it isn't breaking off but some of it just falls off when the wind blows For the still stuck on undercoating I just want to take it off before it ends up like the rest of the undercoating...

[nbpro]

http://www.eastwood.com/rust-encapsulator.html

YouTube - Eastwood's Rust Encapsulator on...

[TheWhiteElephant]

Originally Posted by nbpro

http://www.eastwood.com/rust-encapsulator.html

YouTube - Eastwood's Rust Encapsulator on My Classic Car

Right on! I have used Eastwood's Rust Encapsulator (and am using it right now) with great success. This stuff actually "wants" a (clean) rusty surface to begin with.

[tapeworm]

Originally Posted by nbpro

http://www.eastwood.com/rust-encapsulator.html
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I like really like the Eastwood stuff. It seems to hold up better than POR15