Wood Treatment for New Planters - Ideas please!

Hi

I am about to buy two raised planters for growing veg, but the wood is untreated.
I have seen various articles saying I need to buy an eco wood treatment, as other wood treatments could leak into the soil and then the plants.

However, I am having trouble finding any as nobody seems to stock it or it is not in stock e.g.
Seal-Once nonemployee Wood Sealer,
Ecoprocote Eco-Poly Finish & Sealer,
Seal It Green etc
Does anyone have any alternatives to these please - that are simple to apply and are availabe to buy?

Thanks

 

I always line the inside of the planter with old compost bags then on the soil side i use landscape material so there is a barrier between soil and wood. The raised bed planter i bought was already treated. so no choice.
Sandy

 

Is there enough drainage though when using the bags?

 

My favourite wood treatment is, don't laugh, second hand chip oil.

Two or three coats over a week or so on dry wood give it a darker appearance.
And not that greasy once dry.
You need second hand stuff ,firstly because it's free, and secondly I think the boiling process helps it to dry.

Not much different to boiled linseed oil when you think about it.

 

Most planters have drainage holes in the bottom, but the bottom is always the first area that rots so I'd treat that very thoroughly

 

I think putting bags in the planter is an additional thing to treatment of the timber, both are a good idea, just a few slits in the plastic at the bottom is enough to drain in most places, if you are in a very wet area you might need a bit more but the compost needs to be well draining in winter.

 

I'm the proud owner of a deep fat fryer, so I buy those 5 litre containers of sunflower oil to fill it up.