Good Morning
I am looking for some advise on how and if I can waterproof some terracotta plant pots I have painted with emulsion paint I.e tester pots ,these pots have 3 or 4 colours on them I would like to leave these planted up and then left out in the garden but need them to be waterproof is there anything I can paint on top to do this like a clear varnish or something else any advise would be appreciated.
Many Thanks
Dave