Chassis refurb and protection
Chassis refurb and protection
Author
Discussion

4535jacks

Original Poster:

91 posts

224 months

Tuesday 2nd September 2008
quotequote all
I've started to refurb the chassis, I want to rid the car of surface rust and get an expert welder to strengthen up the areas most affected. Can some recommend an excellent welder in the Medway area?
What is the best method of ridding surface rust. I've been using a drill with a wire brush attachment and wet and dry paper both with WD 40, is there a better solvent or fluid to get rid of rust.

Finally what is the best treatment to get rid of the pitting affect on the surface and leave a smoother finish.

I was then planning on hammerite and waxoyl, any better ideas?

Gary

scotty_d

6,795 posts

225 months

Tuesday 2nd September 2008
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That sounds fine hard work but once its waxoyled its easy to maintain year in.

What i might do i drill in to the chassis and fill it with old engine oil and a waxoyle mix to protect it inside as well, i know this will add a bit of weight but if it helps stop rust it may be worth it just an idea???

dogbucket

1,256 posts

232 months

Tuesday 2nd September 2008
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Consider using something better than Hammerite as it will eventually fail and you will be doing it all again. POR15 is the most popular, or a 2 part paint called Epoxy Mastic was my choice. Both will cost more than Hammerite but worth it in the long run.

imo a sprayable wax is then needed to treat the areas that cannot be painted without a body off like the corner plates etc. Waxoyl or Dinitrol.

HRG

72,863 posts

270 months

Tuesday 2nd September 2008
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Emery Tape is good as you can break lengths off and wrap it round the chassis rails.

GreenV8S

31,027 posts

315 months

Wednesday 3rd September 2008
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Rather than a plain wire wheel, get a wire wheel in a resin matrix because they last much longer. You can also get a fibre wheel which seems very effective at getting rid of stray bits of powder coating. And strips of emery tape of course for the bits you can't get at with power tools.

winters

217 posts

222 months

Wednesday 3rd September 2008
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I'll shortly be starting some chassis work too, once my car returns from its service. As to what to use, I asked my (well respected TVR-) servicing garage what they would recommend I use. They said definitely use some rust inhibitor as the initial coat and recommended Loctite Rust Remedy (7503) - it is what they use.

Loctite say it's a 'Rust neutraliser for bodywork, chassis, subframes. Stabilises the rust process by forming a sound bonded surface which can be sanded,filled or painted.' Presumably similar to this POR15 stuff? Anyone tried it - any opinions/comparisons?

I guess then painting and waxoyling. Can hardly wait! wink

Good luck with yours, Gary.

GreenV8S

31,027 posts

315 months

Wednesday 3rd September 2008
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POR is a family of products not just paint, but if you were applying the POR15 system you would use an acidic rust converter before painting. The rust converter chemically converts rust to a hard compound (iron phosphate in the case of POR15) which resists further corrosion.

That Daddy

19,463 posts

252 months

Wednesday 3rd September 2008
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Here you go http://www.frost.co.uk/item_Detail.asp?productID=8... and http://www.frost.co.uk/item_Detail.asp?productID=9...thumbup dont use WD40 to clean or lube the abrasives though its oil based and may get into the pits of the steel causing the paint/primer to not bond to the metal properly,just my cents worth.

Edited by That Daddy on Wednesday 3rd September 09:03