I personally wouldn’t use folk art acrylic paints because they lack the archival properties needed to keep your paint from fading over time. However, you can use artist grade acrylics with confidence. Liquitex has a great line of artist grade acrylics and mediums. Golden does as well. Here’s a few threads to get you started. If you type acrylic paint in the spyglass you’ll find tons of helpful info! This topic has been discussed numerous times here @anjsmiles has provided lots of wonderfully informative tests and discussions as well. She also has an awesome blog! Here’s a link to her blog