I wondered about adding a little APC to some of the more popular milder foaming soaps, mainly for tough road grime.
This thread has me looking at the P21s as prep for polishing though.
May throw that in the cart for next order.
Let me give you a bit of chemical insight into some of these products.
- Snowfoam
- Prewash
- Non-acid wheel cleaner
- All purpose Cleaner
- Traffic Film Remover
They are all based on very similar principles and, often a product classed as one can easily be sold as another with limited (often no) change. Lets take a snowfoam, prewash and a traffic film remover. In detailing circles, a traffic film remover is seen as a crime, except for in the worst of jobs. It will guaranteed strip your LSP, it will do damage to the paint, it will cause corrosion. So we have prewash and snowfoam products, which address this and are much safer for detailers. Right? Most detailers believe it, but it just isn't accurate.
THEORETICALLY, your prewash and snowfoam products will be much milder, they could still be alkaline but they would specifically avoid the really aggressive ingredients, notably caustic soda. The reason is that, whilst this works and is really cheap, it is much more corrosive than the alternatives. On things like chrome, you should just never use a product like this. Almost based on chrome and trims alone, you should use a non-caustic product - if you really want to be convincing with your detailer 'tag'.
THEORETICALLY, your TFR would be designed for heavier cleaning, less critical, less sensitive and more 'touchless' applications. The vehicles would rarely have much in the way of sensitive finish and, if so, if it happened to go cloudy over a few years, no one would really care. So we use the heavy duty ingredients, bang out a cheap and effective product and commercial users are happy because their vehicles look reasonably clean, reasonably easily and at low cost.
BUT, detailing products, such as snowfoams, are increasingly turning out to be every bit as aggressive and corrosive as their TFR counterparts - totally destroying the detailing belief about product demarkation. In practice, there are numerous, caustic based, snowfoams which are nothing more than aggressive TFRs with a bit of extra foaming added. Since they do not strip LSPs, they are then sold as safe (anyone knowing my postings will know that I am adamant that no half decent LSP should ever be stripped by a wash like this, whatever the product - so this 'safety' is, again, playing on a detailing fallacy). Then, of course, people note that this style of product does clean well so they whoop and holler. No one ever steps back and thinks, 2 years later, whether their wash product could be responsible for the slow degredation occuring - they just whip out the polisher and correct it. I am firmly coming to the opinion that detailing products and detailers are becoming ever more inclined to use aggressive products because they are failing to recognise the bigger picture - just because you don't see a product doing immediate harm, does not mean it is not doing more harm than something else would and that the cumulative effects will not be very apparent (of course, no one in the detailing sector does tests like this, even though the chemical industry knows them well). Basically, TFR/Prewash/Snowfoam are now all confused terms - from marketing literature alone, it is often impossible to know if a product is nice, safe and friendly and designed for detailing or whether it is an aggressive industrial cleaner which has been lifted from the Truckwash section and put into a fancy bottle for 10x the price.
To follow, the APC products - not at all dissimilar. You will probably find that many snowfoams will actually be high foam APCs and will work perfectly as an APC. From that perspective, it is very confusing that people would go mixing APC with snowfoams. Even ignoring the fact that they are likely to be very similar, why don't you just go and buy a better snowfoam?!
As a final note - surfactant films. Many of these products are INTENTIONALLY DESIGNED to leave residues. As above, many are lifted from industrial vehicle wash applications where it is desirable to avoid water spots and to expedite the drying process. We have beading and sheeting agents (nothing to do with wax, just surfactants) which stick to the surface, temporarily, and modify how it behaves in contact with water. It is not a case of whether it happens or not, because it does. It is a case of how much. As I have alluded to many times before, these temporary films DO deposit and they do seem to confuse the life out of the detailing sector. You just should not be able to strip a decent LSP with a dilute water based mix. As before, if you manage to do it, your LSP is either rubbish or you have probably got a surfactant film over the top and have not stripped at all.