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Hi, Since no one else has attempted an answer to your question, I'll give it a try. I am not that familiar with and have never used the MS paint lines, but I think that Crossfire is their "economy" line as is the OMNI line in PPG. The two lines should therefore be competitive, product for product between MS and PPG. That's generally speaking. It's my understanding that the MS Tec line is their higher-end auto-refinish line. That said, a detailed comparison of products within lines becomes more difficult unless one is a chemist and knows all the chemical secrets of the products. Paint companies sometimes play a little loose with the terminology - probably from a marketing standpoint. I think they all do it. For instance, PPG refers to their Delstar acrylic enamel w/hardener as a "Polyurethane Acrylic Enamel". They've done that for years. Delstar is a very, very good acrylic enamel (if you can get it and want to pay a high price) but I personally think that the addition of polyurethane to the designation is more hype than anything else. The same can be said for DuPont's Centari acrylic enamel. DuPont refers to that as acrylic enamel when one hardener is used and an acrylic urethane when a different one is used. Go Figure. Anyway, the line between an acrylic enamel with hardener and an acrylic urethane is somewhat blurred as far as I can tell. It probably depends mostly on the exact ingredients and their relative quantities in whatever proprietary hardener is used. In summary though, from looking at the spec sheet for the Crossfire #55, I'd guess that it is as close to PPG OMNI MTK acrylic urethane as possible within the MS Crossfire line. I don't see anything else in that line that looks to be closer. The fact that the term "enamel" is in the designation, is not particularly relevant. I think all the urethanes, including the polyurethanes can be considered within the basic enamel family. At least I have heard them referred to that way. See also this paint history brief from DuPont.  Rod
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