On Tue, 30 May 2006 02:32:57 GMT, "Thomas Wentworth"
wrote:

What is wrong with just plain teak oil?

Nothing actually, it looks quite good when freshly applied. The
problem with all oil finishes is that they darken (oxidize) with age
and require harsh cleaning methods (acid wash, sanding, etc.)
Eventually the teak wears thin from all that.

Cetol is a religious issue and you either love it or hate it. I fall
into the latter group. It is basically a stain which hides the
natural appearance of the teak, and has an odd (to my eye) orange tint
to it. Without faithful and regular reapplication it fades to
something which resembles old barn paint and looks quite unpleasant.
It is also very slippery when wet.

Which brings us to varnish, another religious issue. Varnish is
arguably the most attractive teak finish when properly applied and
maintained. It is a LOT of work however to keep it up, and if
neglected requires stripping and a total do over with about 7 coats.
Epifanes is a quality varnish which looks great when freshly applied
but is not as durable as Z-spar in my limited experience.

Try to find the Practical Sailor reports on varnish and other teak
treatments.