This is the very unglamorous work of interiors.
We're doing an assisted living center and we campaigned hard for a movie theater for the residents. Their budget will not allow for 15 theatre chairs when commercial ones are $350-400 each.
So we went used. I'll NEVER do this again. I'll just tell them if it's not in the budget for new... Then they CAN'T have them. These looked clean inside the previous theater and had been cleaned regularly.
The shear amount of bubble gum, candy sticky, popcorn and human slime was nauseating.
When this didn't work.
I had to resort to more drastic measures.
Wet.
Soak with "Oil Eater" commercial degreaser.
Shrub with drill brush.
Pressure wash on a low setting.
Repaint the chipped bases.
The only reason I can get away with this is that the material is extremely durable. The trade name is krypton and they use it in busses and subway cars and this actual how they clean it in those applications.
I guess this is the price I pay to earn the contract on a hundred thousand of square foot building and make sure our employees get a paycheck.
