u/ChloeDavide

I'm looking for something to seal the inside of my ground-treated timber planter boxes to stop the chemicals leaching into the soil...I don't want to eat what I grow and find I've sprouted a third arm or something. 😝

I've seen various methods: polythene, bitumen paint, Resene Lumbersider... I was wondering if anyone had any experience with any of these methods.

TIA