|
Daily banter For everything, and anything that doesnt fit in elsewhere |
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Evapo-rust
I've mentioned Evapo-rust in a couple of threads today so thought I would expand on it. Its a relatively new to the UK rust-eating solution that is, as far as I can tell, magic. Its not acidic, not alkaline, not phospor-based, biodegradable, safe to handle, and non-toxic, yet somehow rusty steel comes out completely clean, usually after just an overnight soak. Scrape off any chunky rust beforehand obviously so it has less work to do.
Available on Amazon here, it comes in various sizes but the only one which makes financial sense is the gallon. Pour it in to a plastic container and let it do its thing. It doesn't affect paint, rubber, plastics or aluminium. I can find nothing online about how this stuff works (ergo magic), but its rapidly becoming ubiquitous. Almost all the youtube automotive or engineering channels I watch are using it for cleaning or restoring tools, car parts, machinery etc. I've bought two gallons so far, cleaned loads of things with it, and its still working. There's a bunch of sediment in the bottom of the container which I decant every now and then, and its changed from yellow to green, but its still as effective as it was when it was new. The gel is less effective and substantially more expensive so I don't use that much, but if something can be dunked in a bucket, game on |
#2
|
||||
|
||||
Quote:
__________________
1996 A8 4.2 QS. Bose, Solar roof, um...um... rally sport towbar. Now gone to a new home as the Traders 8. Bright yellow bus o love. |
#3
|
||||
|
||||
Only if you can get the Range Rover in a bucket Dezzy. But if its that far gone you can probably get it in a bucket
__________________
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. |
#4
|
||||
|
||||
Quote:
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.
__________________
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! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds |
#5
|
||||
|
||||
Quote:
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.
__________________
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. |
#6
|
||||
|
||||
Now how did I miss that! Must get the eyes checked. Oddly enough, I came across an Irish site that was advertising it as "3.78 litres (1 UK gallon)".
__________________
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! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds |
#7
|
|||
|
|||
Good spot on the 5 litre one
I've got a brake caliper bracket soaking overnight for a before/after shot |
#8
|
||||
|
||||
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 ...
__________________
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 dιcor, 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 |
#9
|
||||
|
||||
Quote:
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!!)
__________________
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. |
#10
|
|||
|
|||
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?
|
|
|