Got a project where I need 30mm thick MRMDF. First time I’ve used this thickness. Couldn’t find any anywhere so ended up ordering it on line. Arrived today……but…..it doesn’t look like it’s MRMDF. The core doesn’t have greenish tinge I expect, it’s the standard brown of MDF. Now, as I haven’t had this thickness before, should 30mm MRMDF have the green tinge to it’s core??