you are correct when you said that wal-mart paint ended on the better half of the ingredients,but that is because the ingredients that are in SHERWIN WILLIAMS paint are the same ingredients that are in pratt & lambert paint and wal-mart paint. the big difference in these three paint lines is that they are not all made with the same quantities of ingredients such as solids,binders, mildewcides, etc. pratt & lambert and wal-mart are made by SHERWIN WILLIAMS but are divisions of SHERWIN WILLIAMS PAINT CO. these paints are good paints, but not as high of quality of paint as SUPER PAINT,CLASSIC-99,PROCLASSIC,BATH PAINT, EVERCLEAN, & HEALTH SPEC.
ON ANOTHER QUICK NOTE you will not find the knowledge or customer service at a wal-mart or lowe's or home depot like you will at a paint dealer such as SHERWIN WILLIAMS PAINT CO. the SHERWIN WILLIAMS STAFF are not interested in selling you the most expensive paint that they make. they are interested in selling you the right product to get your job done right. you are lucky if someone walks you down to the isle the paint is located in wal-mart or lowes or home depot.