Just my humble opinion, go to a Sherwin Williams or your local
hospital's maintenance department. They surely have experience with
this sort of thing. I would ask them about materials used in isolation
rooms and operating rooms.

Your local Lowe's or H.D. employees are there to sell you something.
Half of the time they are not even qualified to do that.

Tom in KY, wondering if anyone else has had to deal with the same
issue, and what they may have done?