Hi John, Well, I am not surprised they don't carry the Delstar mixing tints. They don't in my area either. That's an expensive acrylic enamel that's not used much anymore in the auto refinish business. I also am not surprised about not having the Ditzco. That was (is?) PPG's alkyd (synthetic) enamel from years past. That's used even less in the bodyshops. I am not sure PPG still makes it at all. I am not familiar with PPG's industrial lineup. I know the major paint manufacturers also have industrial/architechural paint lines as well as automotive ones. Out of curiosity I did find out the following for you: The paint numbers you mention are in PPG's line known as "Commercial Performance Coatings". That line is covered here. The epoxy primer tech sheet is here. The tech sheet for the ALK200 (without hardener) is here. And for the ALK200/201 go here. I am surprised (well, actually I'm not) that the salesperson told you it would be "good enough" to use the hardener (ALK201) with only a charcoal mask. That's definitely not what the manufacturer recommends. The ALK201 hardener does contain isocyanates. See the MSDS sheet for this material here. The catalyst for the epoxy (EPX901) does not contain isos. See the MSDS for that here. Note the recommended respiratory protection measures for each of the materials. It is always easy to play fast and loose with somebody else's health. Just like it is always easy to spend somebody else's money :o). Deltron is a high-end urethane in PPG's main, native line. It is expensive. For red, think big $$$. It would also contain isos in the required hardener. I am surprised that they apparently do not carry PPG's economy line of auto paints called OMNI. You might want to specifically ask them about that. The MP170 epoxy primer is in that line as is the MAE acrylic enamel and the MTK acrylic urethane. I really can't advise you on the commercial line. At first blush it would appear that the EPX900 would be similar to the OMNI MP170. The ALK200 stuff is referred to as a "acrylic modified alkyd". Whatever the H that means. I would peg it as having a performance similar to an alkyd (synthetic) enamel. My concern would be early fading of the ALK200 since it is a synthetic enamel. It seems to cost significantly more than a typical synthetic though...more like the OMNI MAE acrylic; so perhaps it could work out well for you. Not many choices out there for performance if you are trying to stay away from isos. I got carried away with links in this one. I hope they all work correctly. Good luck. Rod
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