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#2
17-12-10, 09:13
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Molassas do work very well however over a longer period of time, circa two weeks for larger items. Coca Cola contains citric acid which does clean. You can make a vat with 3 %citric acid and soak the item you then have to take it out after 24hours wire brush it then soak for another 24 hours, then wirebrush / jet wash the oxidised waste from the metal. it works well but you have to really flush he steel properly then use a heat gun or blow torch to heat the metal and thoroughly dry it out otherwise it oxidises very quickly.
here is a good demo of this process http://www.youtube.com/watch?v=ckdMdiJlV7c and likewise a good example of results from an electrolysis bath for large items... this one is four parts and the link i have put is part four http://www.youtube.com/watch?v=35nmK...D41B7&index=18
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is mos redintegro __5th Div___46th Div__ 1942 Ford Universal Carrier No.3 MkI* Lower Hull No. 10131 War Department CT54508 (SOLD) 1944 Ford Universal Carrier MkII* (under restoration). 1944 Morris C8 radio body (under restoration). 
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#3
17-12-10, 16:32
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Rust Remover
Hey Richard
Thanks for those links, I checked out some of the other vids there and found some showing the Strong Arm Sprays to remove rust, that produst looks pretty amazing to remove rust from everything. Gary
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C-15A C-60S Universal Carrier MK II x4 M152 CDN VW Iltis and M101 Trailer   
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#4
17-12-10, 17:39
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Lye solution....
I used a more agressive approach to de -rusting...
Using a 45 gal. barrell with thetop cut off....filled with water and lye solution form rural hardware store.... used up to two batteries and a battery charger. Batteries would drain in about one hour.... battery charger was hot... Installed a sheet of Stainless Steel around the perimetre of the drum ..about 6 square feet.......SS will last longer in a strong solution....Suspended complete axles in the barrell using the bucket of the tractor..... did one end... reversed for other half.... working outside H gas was not a serious concern.... the lye solution really removes grease from your bare hands.... and some skin... Rinsed with a high pressure water gun and sun dried..... sprayed with Phosphoric acid to etch....sun dried again ....iron phosphate dust rub down lightly with 3M pad...... paint with POR. Lye is dangerous and toxic..... advantage is that it also removes any paint and degreases the inner part of the axle tube..... Empty drum on a rainy day when ground is already soaked with water.... skimming the greasy oil lumpy scum from the surface is recommended. Remember that the bigger the parts.... the bigger the sacrificial plate... the stronger the solution the faster and hotter things will get. Keeping pets and kids away is mandatory..... all these processes can be dangerous but then so is the torch, plasma cutter, grinder, etc..... Bob C.
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada
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#5
18-12-10, 15:42
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now my tracks are freed up (the hard way) i was going to blast them and coat them in a thinned down bitumen paint and leave them out in the sun or give them a going over with a blow torch. i don't know if they originally had a black finish to them but modern tracks always come with what i assume is a bitumen based preservative coating, anyone got any idea's on this.
eddy
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_______________________ 1941 mk1 mortar Carrier 1941 Mk1* Carrier 1942 Mk1* Carrier 1943 T16 Carrier 1945 Mk3 Dingo 1941 Mk3 Covenanter 1941 Mk4 Churchill AVRE (now sold) 1944 Mk6 Cromwell (now sold) 1952 Mk3 Centurion 1952 ARV Centurion 1952 ARV Centurion 1953 Mk3 Centurion (breaking)
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#6
18-12-10, 16:07
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not sure i know during war time they wee raw steel no paint etc etc. that said i will still do my tracks in a black coating
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is mos redintegro __5th Div___46th Div__ 1942 Ford Universal Carrier No.3 MkI* Lower Hull No. 10131 War Department CT54508 (SOLD) 1944 Ford Universal Carrier MkII* (under restoration). 1944 Morris C8 radio body (under restoration).
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#7
18-12-10, 17:47
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I woulnd't bother painting the tracks as there really is no need. Mine haven't moved in 1.5 yrs (no engine back yet) There is a bit of surface rust and thats it. As soon as you go for a drive on dirt and grass they clean right up.
What is your reasons for wanting to paint them black?
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Jordan Baker RHLI Museum, Otter LRC C15A-Wire3, 1944 Willys MB, 1942 10cwt Canadian trailer
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