How do I resolve my varnish problem?
Yep. see your problem. You don't want to sand it through 😡
With paint strippers, and I've used some pretty aggressive ones - like when I stripped about 20 coats of ancient oil paints off the beautiful pine doors in my old cottage in Sandhurst many moons ago, I'm always a bit concerned with what remains in the wood.
Therefore I would favour careful sanding with as fine a grit that will do the job before Christmas! Then apply a quality wood sealer, Ronseal was good in those days! Damp the wood to bring up fibres and hand sand 'em flat with 'flour paper', if that is still known!? it's so fine your fingers barely notice it, but the fibres do 👍 NOT Wet&Dry, it will discolour the wood.
After that apply a UV resistant yacht grade varnish of your choice.
I'm sure Martin can recommend something and correct me if I'm wrong, but that's what I learned from my Granddad, who was a master carpenter. Amongst many other wonderful things he made church furniture.
Wow! now Queen on the radio - 'The Show Must Go On'. 😊
Young at heart 😉 Slightly older in other places.😊 Cheers Doug