Material Formulas

How does everyone handle naming of their materials? We have it where we have the Potential for PL-1 through PL-10, and are trying to figure the easiest way to name formula driven materials. I am struggling a bit with how to go about naming things for PL-1 through PL-10 and only using one formula.

Currently I have something like this:

=PL_1_Core &IF(Formaldehyde_Free_NAUF_or_ULEF=1, " NAUF", "") &" - " &Mel_1 &IF(MEL_1_Has_Grain_Direction=1, " [GRAIN]", " [SOLID]") &" LINER UP - " &_PL_1 &IF(PL_1_Has_Grain_Direction=1, " [GRAIN]", " [SOLID]")

but would like to find a way for this formula to update for PL-1 through PL-10, so we only have a couple materials instead of one for each PL color.

Any help would be greatly appreciated,

Thanks

Aaron