Hi Paul/Shaun
I have always used a water based product on carpets and they work fine providing the correct amount is applied per square yard/metre.
I have used water based protectors on suites and found them OK...until about two years ago that is.
That's when I had a wonderful beige suite go pink on me overnight.
This is not uncommon (not all mine...only had the one that was enough) but we didn't know what was causing the reaction.
It is only within the last couple on months or so that I have found that some dyes used in the manufacture of fabrics are sensitive to acidic products ...(cleaning chemicals and protectors)
I think that all the water based upholstery protectors are on the acid side which I always thouigh was great as it was assumed to be safe on acid dyes....some of the dyes are not acid dyes!!
Aren't these fabric manufacturers wonderful? :-/
You cannot test for this on site unless you test one day and return the following day.
I now always stick to solvent based protectors for upholstery...BUT...how long before solvents are withdrawn as carriers for fluorochemical treatments under H & S laws?
Regards
Derek