Does PG material have a recommended shelf life?

Nice! I’m on point about the finish, yeah? It seems well-made.

Let us know how it takes a lasering!

I’m very sorry for the delayed reply.

We believe Proofgrade should work well for at least a year if stored in a temperate location out of the light, although it may get more difficult to peel off the protective coating with time. Also, as the wood expands and contracts, wrinkles may appear in the protective coating.