Treatment for wooden gate

[felly]

I have a garden gate made from rough wood which has been treated and only needed weathering before painting. I wish to apply Cuprinol Timbercare but when I came to prepare the surface I uncovered a small area which seems to be discharging an orange coloured oil. I think it had been covered with some sort of white powder to protect it. Can anyone tell me how to deal with this so that I can paint it?

[heathfield]

It's typical of resin that's oozing out. Wipe as much off as possible with a cloth and methylated spirits - which dissolves resin. Get a can of 'knotting solution' (a kind of varnish) from your DIY store and follow the instructions. This will provide a seal over the resin and allow you to paint normally.

If you like, you can firstly apply a heat gun (without scorching the wood!). This will get more of the resin out.. Otherwise, later, if your gate is facing the sun, the heat from the sun will be enough to cause more resin to bleed out and blister your paintwork.

[felly]

Thanks Heathfield for the very helpful information.

[heathfield]

Oh dear! I've just re-read your question. It was the next to final word 'paint' that I concentrated on.
If you're using a timber preservative instead of actual paint, just wipe the resin off, and go ahead with the application on the timber. Any excess resin will probably still bleed through, but resin is a kind of preservative on its own, and won't do any harm beyond being visible and a bit sticky.
Sorry!

[felly]

My fault for using the wrong word. Thanks for the revised information.