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Daily banter For everything, and anything that doesnt fit in elsewhere |
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#1
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https://www.thompsonsltd.co.uk/qevp5...r-soluble.html It's listed there at £21.59 (ignore the silly RRP they give), and because I live in NI, I always get stung for additional shipping charges, so I always shop around.
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts Sold! ![]() My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds |
#2
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![]() The MSDS Attached) doesnt give its composition - just has it as a "chelator/detergent" - but it does seem to be remarkably benign for something that eats rust. ![]()
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind. |
#3
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts Sold! ![]() My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds |
#4
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Good spot on the 5 litre one
![]() I've got a brake caliper bracket soaking overnight for a before/after shot ![]() |
#5
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Thanks for the tip MJ.
![]() I'm guessing that whatever is in the stuff likes oxygen (even more than iron does) and is able to react with the oxygen in the iron, removing it and therefore reversing the rusting process. But presumably that would make it react with the oxygen in the air too, causing it to become saturated if not kept in a sealed container? .... unless it somehow reacts only with certain oxides ...
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Mark ------------------------------------------------------ 2002 FE S8 Ebony Black Pearl ------------------------------------------------------ ------------------------------------------------------ Cars Owned: The Tesla Era: 2020 Model S Performance Ludicrous+ (present) (Black, with all black premium interior and carbon fibre décor, 21" sonic carbon twin turbine wheels and FSD capability) The Audi Era: '97 A8 4.2 (Ming Blue) --> '96 A8 4.2 QS (Dark Green) --> '02 FE S8 (present) The Citroen Era: '84 BX 1.6 RS --> '89 BX 1.9 DTR Turbo --> '94 XM 2.0L Turbo --> '96 XM 2.0L Turbo Exclusive --> '00 Xantia Activa 2.0L Turbo The Banger Era: '76 1.2L Lada VAZ-2101 (Ruski Fiat 124) --> '80 1.7L Morris Ital HL, finished in Ermine White and Rust |
#6
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![]() I think the explanation lies with it being described as a "Chelator". Chelation is a type of bonding of ions and molecules to metal ions. It involves the formation or presence of two or more separate coordinate bonds between a polydentate (multiple bonded) ligand and a single central atom. These ligands are called chelants, chelators, chelating agents, or sequestering agents. They are usually organic compounds. Chelation is useful in applications such as providing nutritional supplements, in chelation therapy to remove toxic metals from the body, as contrast agents in MRI scanning, in manufacturing using homogeneous catalysts, in chemical water treatment to assist in the removal of metals, and in fertilizers. (Wikipedia explanation ....... not mine!!)
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind. Last edited by David's8; 27th February 2020 at 08:01 AM. |
#7
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So by that description, it likes iron even more than oxygen does, and is able to extract it from the iron oxide therefore removing the rust. If you leave things in it too long they get a black film over the top which needs washing off. This is especially pronounced with cast iron with a high carbon content. I wonder if once the rust is gone it then starts trying to remove iron molecules from the object itself, and in the case of cast, it leaves the carbon behind?
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#8
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I wasn't aware of this 'Chelation' you speak of. Interesting stuff; I need to do some reading. In the meantime, I think you're right, "magic" will do. Or maybe 'witchcraft'. To paraphrase Python, 'if it looks like witchcraft, it must be witchcraft!' ![]()
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Mark ------------------------------------------------------ 2002 FE S8 Ebony Black Pearl ------------------------------------------------------ ------------------------------------------------------ Cars Owned: The Tesla Era: 2020 Model S Performance Ludicrous+ (present) (Black, with all black premium interior and carbon fibre décor, 21" sonic carbon twin turbine wheels and FSD capability) The Audi Era: '97 A8 4.2 (Ming Blue) --> '96 A8 4.2 QS (Dark Green) --> '02 FE S8 (present) The Citroen Era: '84 BX 1.6 RS --> '89 BX 1.9 DTR Turbo --> '94 XM 2.0L Turbo --> '96 XM 2.0L Turbo Exclusive --> '00 Xantia Activa 2.0L Turbo The Banger Era: '76 1.2L Lada VAZ-2101 (Ruski Fiat 124) --> '80 1.7L Morris Ital HL, finished in Ermine White and Rust |
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