uneven varnish - any advice?

[Bethanne]

We have just made a den in the attic of our garage, and today I varnished the tongue and groove pine ceiling and sides. I used Translac varnish and was advised that one coat would do, but it looks uneven and blotchy. What now?

[BlueKangerooWonders]

Ours went like this. Looked great sanded, but patchy when clear varnish on. Builders thought it was something in the wood, so they re-varnished with a (v pale) colour and it was fine.

[Heated]

Had to sand down the windowsills in our house again with finer grade sanding sheet and used varnish with a bit of a colour stain in it to get it looking non blotchy.

The garage den sounds lovely - you must be handy!