Hey there @EmergencyPoncho! Welcome to the community! You can edit the decal’s material and use Lerp_ScratchGrime2 or the original version. Basically you apply your base map in the first node. then whatever value you want the maps (basically their alpha in the blend), then apply the mask shape for the last 2 nodes.
It’s made for both scratches and dirt/grime so it’s a pretty solid composite!
