[Taf]

I don't know where this idea of a "lacquer coat" comes from. They have always been a sandwich between polycarbonate layers AFAIK.

Polycarbonate is highly resistant to most chemicals, but not Methyl Alcohol (Methanol).

Some hand sanitisers were found to be contaminated with methanol which cause them to be recalled and destroyed.

Some soaps contain moisturisers to stop the skin drying-out after use.