XK 150 FHC trunk inside panel

I have manufactured a replacement trunk (boot) lid inside panel from 1/8 inch baltic-birch to replace the delaminated original. The original is covered with what I can best describe as oil-cloth. A thin material, glued and stapled to the plywood. Does anyone know the name of this material, or an alternative, and if possible a source in US. The material was grey which is interesting because the car was originally white, although, I now plan to trim it in grey.
As always thank you in anticipation.


Thanks Rob, nice to find something that is still available and not too expensive.