Autoglym Magma - magic! Also - interesting secondary use!

[watercooled]

If you have white/light coloured car and pay close attention to the paintwork I'm sure you'll be aware of this, but a load of tiny bits of what's essentially rust, either brake dust or what's known as 'industrial fallout' get embedded in the paintwork. When I first noticed it I panicked a bit because it looks like a load of tiny rust pits from close up! The thing is, normal cleaning doesn't remove it, and attempting to pick them off just smears the tiny speck into a big, obvious streak which still doesn't come off easily!

One way to deal with it is a clay bar, which if you're not aware is a piece of special clay you run across the wetted surface carefully to pick up these contaminants, but it's fairly laborious work and something I've not actually gotten around to. So after finding out about it online, I decided to give Autoglym's 'Magma' a go. After normally washing the car, you spray this over the bodywork and alloys (works great for brake dust too) and where it meets iron oxide it reacts into a reddish colour and smells quite strongly (turns out it contains what's basically hair perming solution, and it does smell like it!) then you give it a quick wipe over and a good rinse a few minutes later.

I was pleasantly surprised by how well it worked on those little rust spots! And it brigs alloys up nicely too. Just something to be aware of, it takes quite a lot of rinsing to get the chemical out of the nooks and crannies where it seems to find a never ending supply of ferrous dust and keep pouring out red liquid!


Having done all that, I turned my attention to our bath, which thanks to a rusted-away screw on the shower rail, was full of similar rust specks which wouldn't come away with the usual bathroom cleaners. I decided to give Magma a go again! And yes, it really does stink in a confined space, but a few minutes later and pretty much all of those specks were gone! Obviously it's not a recommended use so I took the risk on that one, but the logic paid off.


I'm quite sceptical by default of many niche cleaning products, given many of them contain much the same stuff, but this one one which seems to work well for me at least!

[Lowe]

Aka, fallout remover. Lots of other brands that do the same and are lots cheaper.

[watercooled]

Yeah I'm aware it's not the only brand of the chemical, just quite pleased by how well it worked. Also got it quite cheap on black Friday - one of the only things I did buy!

I'm not aware of any 'lots cheaper' though, even vs RRP, maybe if I was buying gallons of the stuff! Any suggestions for when I run out?

[Jonj1611]

I used Magma, had excellent results with it

[peterb]

Ammonia + Citric Acid + Thioglycolic Acid + Iron reacts to form ferric thioglycolate, which is red/purple in colour (Hence the ‘bleeding’ effect.)

The original article is at https://www.detailingwiki.org/decont...llout-remover/

[watercooled]

The thioglycolic acid, or more specifically its salt form sodium mercaptoacetate according to the MSDS for Magma, is main active ingredient and the bit that reacts to form the colour. Ammonia/citric acid aren't listed in the Magma MSDS interestingly but are maybe left out or substituted to make it kinder to paintwork or ferrous parts in general? Magma and a few similar products pride themselves on being non-acidic or pH neutral.

[philehidiot]

I think they're quite expensive but I have an S10 respirator for this kind of work. Helps with cleaning drains and cutting onions.

NATO spec filters are quite steep but you can get generic ones which are great for bog standard, non CBRN use.

[Zak33]

Helps with cleaning drains and cutting onions.
.

class....utter class

[peterb]

Yes, think I’ve got one somewhere, or maybe it was an S6...

[Saracen999]

I think they're quite expensive but I have an S10 respirator for this kind of work. Helps with cleaning drains and cutting onions.

....

I have a solution for both of those. For the drains, I pay someone to do it For onions, maybe it's something genetic but very rarely do I get any effect from onions. But what does help is a really, REALLY sharp knife.


I love the idea of the mask for onions. I had this flash of a mental image of you going into the kitchin in a full NBC suit ... right, onion time.