FYI All paint bases have changed. New VTOC regulations. Behr now has a paint base for light colors and dark colors, low VTOC. In the old days it was flat or eggshell or gloss or high gloss for your base choices. Now the color your mixing dictates a different "base".

Then......Ralph Lauren came out with paint-with-texture. Some glitter, some look like suede....and so on. So now they have "glamour" paints with their own special base and special application.

I currently only buy paint with primer in it. Yes. I use satin on the walls, it's still the recommended finish. You can computer match any color.

I used to use a Kilz primer then paint, not any more. They also will tint Kilz primer.....something new-to-me. Primer used to be ONLY white.

I use BM colors/color charts, but not their paint.

So it's a result of regulations?

I think they've been tinting primer for years. Pretty sure it was used last time the living room was painted in 2004.

Because of regulations everyone had to change. The paint business is BIG! Very competitive. Always improving. New UV for exterior paint. Paints that stick to plastic. I'm a consumer. I paint whole houses. I still use oil base/alkyd when needed, water based ....latex......as a consumer. I'm not a chemist. Maybe someone else can give a broader explanation.

Does Aura satin respond like Waterborne Satin Impervo? And if so, what's the difference? The problem I've run into in the past when using latex (Regal Aquaglow) on flat surfaces like shelving, is that it takes FOREVER to dry.

I'm actually very impressed with the Regal Aquaglow Satin that was used on the walls 14 years ago. When I removed artwork recently the only evidence that something had hung there was the picture hanging hardware. No discoloration where things once hung.

I've never used waterborne Impervo, just the alkyd, and haven't used alkyd paints in many years.

Aura is fast drying, sometimes too fast for inexperienced painters.

If you don't mind using a different product than BM, the PPG Break-Through for trim, doors, shelves, cabinets, is also an excellent choice. I usually spray it, but it's also easy to brush.