I should have mentioned the obvious need to clean and degrease the bilge..
Even if it were virgin glass surface, it would still have wax on it..

I would hate to see anyone use large quantities of acetone in the bilge. But
I believe you can clean it adequately with TSP to clean and remove the
grease and ordinary dirt.. Followed by plenty of ventilation and a wipe down
with acetone. Just be careful..

Steve