Are the RAL colors rated for exterior use?

They are! Most of our RALs are now TGIC-free Polyester products and are considered to be suitable for indoor and outdoor applications.

Can we get this in a matte finish, 20% gloss?

It is possible that we could reformulate a version to be low gloss. If this is something that you would like to pursue please fill out and submit the color match form, which can be found in the "documents" section of our website. Another option which may be a more cost effective route (depending on job size) would be to simply apply a low gloss clear top coat over the RAL base coat.