rufus357
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| posted on 3/12/18 at 07:30 PM |
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Orangey stains that arent rust....
Cracking on with the strip down and tackling the dodgy powder coat. I could see orangey rust stains on the floor so decided to remove the floor panel,
only to find that there isn’t any rust. The orange stains are actually an oily greasy substance , any ideas on what it might be??
 Untitle
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Also what’s the best way to rustproof the rivet holes in the chassis before re-rivetting?
Thanks
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owelly
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| posted on 3/12/18 at 07:54 PM |
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I'll take a guess at Waxoyl for both questions?!
[Edited on 3/12/18 by owelly]
http://www.ppcmag.co.uk
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Doctor Derek Doctors
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| posted on 4/12/18 at 08:47 AM |
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Looks like cutting compound to me, somebody dribbling it into the drill to drill through the floor into the chassis and then not cleaning it up
afterwards.
Designer and Supplier of the T89 Designs - Single Seater Locost. Build you own Single Seater Racecar for ~£5k.
Plans and Drawings available, U2U or e-mail for details.
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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nick205
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| posted on 4/12/18 at 12:18 PM |
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Think I'd go with a rust prevention or cutting compound of some sort. I know when I drilled my MK Indy chassis I sprayed Waxoyl type rust
prevention substance inmany of the drilled holes. I also used closed pop-rivets as a means of preventing moisture getting inside the steel chassis
rails as well.
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rufus357
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| posted on 4/12/18 at 02:36 PM |
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One of the 2 seems likely! I'm not sure if I'm annoyed to have taken the floor off for nothing or pleased that its not rusty 
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nick205
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| posted on 5/12/18 at 09:04 AM |
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quote:
Originally posted by rufus357
One of the 2 seems likely! I'm not sure if I'm annoyed to have taken the floor off for nothing or pleased that its not rusty
1. Be pleased it's not rust. Rust is a pain and would and up requiring far more effort to deal with effectively.
2. Do you need to remove the floor? I guess it will expose the chassis rails so you can strip and finish if you wish, but otherwise I'd leave
the floor in place.
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Mr Whippy
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| posted on 5/12/18 at 12:11 PM |
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just looks like the kind of yuck you get in a dusty environment where grinding goes on, probably is rust, just not from your car
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FamilyGuy
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| posted on 5/12/18 at 04:51 PM |
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When I riveted my floor down I ran a bead of tiger seal along the chassis and around each hole, I also dipped each rivet in tiger seal before
inserting and finally filled the head of each rivet with tiger seal. Hopefully that should keep any water out.
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rusty nuts
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| posted on 5/12/18 at 05:25 PM |
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Not too sure about keeping water out as much as letting it out after getting caught in a downpour. I once saw a Viento with at least an inch of water
in it
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FamilyGuy
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| posted on 5/12/18 at 05:55 PM |
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I'm planning on a few strategic drain holes in the floor to stop that happening.
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PAUL FISHER
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| posted on 5/12/18 at 11:05 PM |
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You should really be using sealed blind rivets for the floor panel 😎
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Mr Whippy
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| posted on 6/12/18 at 12:04 PM |
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as above I have found getting water out more important than sealing it's amazing how much can fill up the floor in just one day and then it
sloshes about everywhere violently while being sucked up into the slipstream, basically you end up soaked 
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rufus357
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| posted on 7/12/18 at 09:34 PM |
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So 95% of the powder coat appears fine from the outside but underneath it has these weird worm tracks. They are firm and not flaky very strange...
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bonzoronnie
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| posted on 8/12/18 at 08:44 AM |
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In my personal experience, that is very typical of the type of rust to be found lurking under powder coated components.
Seen it many, many times when re-furbing things that have been powder coated.
IMHO
Powder coat looks great to the eye but I much prefer a good prep & reliable paint system.
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FamilyGuy
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| posted on 8/12/18 at 08:45 AM |
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Looks like filiform corrosion
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