I’ve never used Valchromat, but from what I understand what Ola said above is correct. Forescolor is a less expensive product that is colored with organic dyes and machines in a similar way to MDF. It’s a neat product, but I wouldn’t pay the premium for it for shop fixtures. It also comes in several different textures geared towards architectural wall panels, accents, modern cabinet doors/drawer fronts, etc… Even the more affordable Forescolor product is way more expensive than MDF