I've got iroko timber around my south facing aluminium windows that I've
just sandpapered off the old mahogany coloured varnish. It's a hot ledge
when the sun is glaring at it (as it is today).

This varnish previously had been a mix of Ronseal exterior painted on
top of older Sikkens Cetol HLS / Filter, and was cracking quite badly so
it had to go. I've still got tinned remains of both Ronseal & Sikkens
(last used 2003) in the tool shed.

So... which do I use?

Ronseal: Lasts 5 years (it sez on the tin), Dry and recoatable in 6
hours, in the future lightly rub down and recoat with same is minimal
fuss. It's not expensive.

Sikkens: Lasts ?, needs 16 hours wait between coats, needs one coat of
HLS and two of filter, in the future I'd only be happy stripping off to
bare wood to do it again. Costs a bit more. Lots.

Of course, I have a question mark above. How long does Sikkens normally
last in the glare of the unforgiving sun? In terms of wood protection,
it its use justified over Ronseal?

--
Adrian C