Lima envec reline all makes and models of deburing equipment.
This post describes the relining of a William Boulton FM 10 . The process involves removing the old worn lining, grit blasting the work chamber back to base metal.
Then a suitable steel mould tool is suspended inside the work bowl and liquid polyurethane poured into the void between the steel work bowl and the mould tool. The next stage is to remove the mould tool and fit any doors or drains. Finally the outside of the FM 10 is painted to meet customer specification.

Bowl and tub relines (FM 10)