Friend of mine used matrix at his collision shop some. He had been in the collision/ paint body business for years. He told me then, years ago, that it was ppg. He said it smelled and sprayed just like ppg.Matrix didn't design anything. They stole everything from PPG. PPG didn't protect the formulas. Matrix copied all of it, right down to every drop of toner to produce a paint code formula. Cheap, easy way to produce something. Sound familiar? Matrix is not now similar to original PPG copy. It has been "reformulated" by Sherwin Williams (also prospray, valspar, and house of color) SW base was poor, so they just bought them out. SPI is USA made, not repackaged, and actually proud of their own products.