Re: Gouache over Fluid Matte Acrylic
I've been looking into this myself, trying to learn anything new since I'm still a novice when it comes to painting.
From what I've read on the subject, any paint that has a gloss to it would hinder the Gouache sticking onto it because the gloss factor acts as a sealer; think of it like varnish on wood, it protects the wood from the elements like moisture.
If the same rules apply to my own understanding about sealants and fixatives, any paint with a Matte finish should allow another coat of paint to be put onto it, including Gaouche, because the surface isn't "sealed" like paints with a Gloss Finish would.
That's my earliest understanding on the subject, since I do drawings with charcoal from time to time, fixatives is something charcoal artists invest in greatly. I checked up on it to be sure. I hope this helps out.
Craig Poling Junior