Had an interesting call yesterday from Josh and I think the conversation (shortened a few hours) is worth mentioning as an education.
IN SHORT!
Epoxy, there are a 1000 ways to make an epoxy and every industry is unique.
Automotive refinish (Us) we think we have the best and our sales compared to the majors would perhaps support that theory.
Want the very best epoxy?? Epoxy made for off shore oil platforms; will it work on a car? No way, would not be worth a crap because what is put in it and what is left out. This is also true for the older bottom paints on ships.
Epoxy for cement floors, will the SPI work? Yes, is it the best for cement floors? NO. I have it on the floor of the wife’s garage but, it has it draw backs because we need more intermediates added to perform well under automotive paint and they don’t, so they have a slight edge in strength and they add an intermediate that prevents tire staining, if the tires are parked, when wet and hot. If we used that additive, you could cough on the paint and it would fall off.
How about epoxy that cures great at 25-40 degrees? Bet a lot of you would like that one! Sorry, it is made for an industrial application and could never be used on a car with any success at all.
Also a note on another subject, the thread he was referring to is the same one, Shine is referring to and the whole point to remember is products made for different industries are made that way for a purpose, hence the statement Urethane is best on raw metal, WRONG the guy making this statement is someone that has made a living putting his label on por 15 and selling it at flea markets in his own words for 35 years.
Moisture cured, is totally different chemistry then Iso cured, thank GOD!