Sealing chemical labels:

These spray can products are recommended for water-proofing/sealing of dropper bottle and reagent bottle labels:
Micador Permanent Matt Finish, from SupplyWest Bookland
Wattyl’s Estapol
White Knight Satin Crystal Clear Acrylic, available from Bunnings
Please note that all spray cans need to be stored in a metal box so they don’t become missiles in the event of a fire.

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