Forum home› Problem solving
This Forum will close on Wednesday 27 March, 2024. Please refer to the announcement on the Discussions page for further detail.

Sealing concrete pots

shanelee66shanelee66 Posts: 28
in Problem solving
Hi everyone. 
I've started getting into diy concrete pot making but I've read that the concrete can harm the plant? Thinking of sealing inside with pva? Any advice would be appreciated. 

Thanks 

Posts

  • ObelixxObelixx Posts: 30,090
    Clear acrylic varnish would be as good and you can now by exterior grade in matt, satin or gloss finish.

    Apply at least 2 coats, 24 hours apart but not more than 3 or it goes milky.   Great stuff for stopping porous pots like terracotta and concrete form absorbing water and then drying and cracking and a great way to stop the lime content and other chemicals in concrete from leaching into your planting medium.
    Vendée - 20kms from Atlantic coast.
    "The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
    Plato
  • shanelee66shanelee66 Posts: 28
    Thanks so much for your reply and will have a look for some.
Sign In or Register to comment.