I emailed them nearly a week ago and no reply. So I was hoping to find answers elsewhere.

I read water-based for one paint line. Then then MAX lineup doesn't say that. Just says acrylic. So I'm not sure.

So here, let me change the question to make it more about the paint and not about the brand......

I already know I can thin acrylic paints that are NOT water-based with other chemicals like the Mr Leveling Thinner I love.

Can I thin water -based acrylics with those same thinners? Or do I have to use water?