P21s (red) vs megs wheel brightner

[paddy328]

This is a test i did a while ago on one of the wheels of my 328 sport. It had a nail in it, so while it was off, i decided to do a little test on the inside of the rim.

Here are the two test subjects.


I tried spraying the megs wb on and it didnt really do anything.

To be honest, i never really planned on doing a test, but when i saw the difference the p21s made over the megs, i ran and got my camera.

This is after spraying the p21s on the wheel. Notice the colour.


This is without touching it and see how the brake dust is running off.


The p21s removed most of the crap without even touching the wheel. I only needed to adgitate in a couple of places wih a swissol wheel brush.
Once done, i rinsed the wheel off with the shower.( i had it in the bath) (and yes i do live at home with no girfriend to shout at me) and it came out like this.


This stuff is the best wheel cleaner i have ever used but its hard to get hold of. The only real place to get it is german ebay, and its not cheap.

One bad thing about it though is that it smells so bad. Like bottled arse gas.

[George @ DU]

Paddy,

Great write up. Since I read your mentioning about P21s Gel Red on a previous thread, I was curious about what it was, what it did and how it compared. This answered all of my questions. I'll be sure to make an inquiry about getting it in the states. Thanks again!

George

[derek80]

I was also curious when you mentioned P21S red, and WOW that stuff really cleans very well, nice product
From what I know, Megs Wheel Brightener is one of the most effective/strong wheel cleaners out there...i gotta visit germany someday.

Originally Posted by paddy328

( i had it in the bath) (and yes i do live at home with no girfriend to shout at me)

:spit:

[paddy328]

megs is a good wheel cleaner but the red p21s is better and is safer on the wheels.

[Juztang]

I've always wanted to try the P21S wheel cleaner. Now I might actually give it a shot!

[picus]

So what's the deal with this red version? The green gel we get here is nowhere near as strong as WB. It's intended for aluminum/chrome wheels, and is ph balanced... WB is ph 2 (afaik), and of course contains hydroflouric acid... it'd be a disaster on aluminum wheels but it works wonderfully on mags.

So ya, more info on this red P21S please... Acid? Caustic?

[paddy328]

To be honest i dont know. I have heard someone say it smells so bad because it has amonia in it. Ive used it on painted wheels and also on my friends audi tt.

[Mikeyc]

Originally Posted by picus

So what's the deal with this red version? The green gel we get here is nowhere near as strong as WB. It's intended for aluminum/chrome wheels, and is ph balanced... WB is ph 2 (afaik), and of course contains hydroflouric acid... it'd be a disaster on aluminum wheels but it works wonderfully on mags.

So ya, more info on this red P21S please... Acid? Caustic?

I've heard people talk about P21S red from time to time and I'm curious about it as well. On rare occasions WB just doesn't get the job done and the P21S we have here in the USA is no where near as strong as the red version.

[awahl63]

Wow...any more info on this product?

[TOGWT]

Originally Posted by picus

So what's the deal with this red version? The green gel we get here is nowhere near as strong as WB. It's intended for aluminum/chrome wheels, and is ph balanced... WB is ph 2 (afaik), and of course contains hydroflouric acid... it'd be a disaster on aluminum wheels but it works wonderfully on mags.

Quote: So ya, more info on this red P21S please... Acid? Caustic?

P21S products do not use acid and are not extreme alkaline (caustic)

Quote: ...hydroflouric acid... it'd be a disaster on aluminum wheels
It would be a disaster on the person using it as well.

Hydrofluoric Acid (SiO2):
[: is a highly toxic and corrosive solution of hydrogen fluoride in water.]
Cleaning paint (inc wheel surfaces) - ten or more years ago this method was widely used by body-shops and detailers to remove water spots from paint surfaces, however, as time progressed, we started to see metallic paints darken under the clear coat.

Hydrofluoric acid is also notoriously known to react with glass. On factory aluminium wheel surfaces, acrylic polyurethane finishes or polyester powdered coatings it will occlude (cloud) an indication that the finish surface has been compromised, it also produces micro hairline cracks, and will eventually fail.

Most of the larger automotive paint suppliers (PPG, DuPont and BASF) do not recommend this type of chemical to be used on their paints. Stating that the acid, even if thoroughly flushed with water had already compromised the clear coat and given time would also compromise the paint system, dependant on the environment the vehicle was subjected, to over a period of 2-3 years it was possible that the clear coat would occlude (cloud) indicative of clear coat failure as the acid breaks down the paints binder system.

It also has the unique ability to dissolve almost all inorganic oxides. In the human body, hydrofluoric acid reacts with calcium and damages nerves, bone, and several organs including the heart and kidneys. It has an NFPA health rating of 3; Short exposure could cause serious temporary or residual injury even though prompt medical attention was given This substance should be handled with extreme care, beyond that accorded to hydrochloric, sulphuric, or other mineral acids

Information resource - Hydrofluoric acid - Wikipedia, the free encyclopedia
Material Data Sheet - MSDS - HYDROCHLORIC ACID, 33 - 40%