I have a BTL house.
I fitted a new hardwood front door and frame about 3 years ago.
I painted it with clear yacht varnish. it has been painted twice again
I only started letting it out 15 months ago.
In the meantime, The yacht varnish has flaked off. The now exposed wood
has weathered and gone a silvery grey.
Can the greyed wood be restored back to its original colour and
re-varnished with clear varnish? if so, how?
Otherwise I am resigned to either:
(a) sanding whole door and frame back down to a varnish free state, and
staining with a dark brown stain (to hide the grey wood) and
re-varnishing with a clear varnish.
(b) ripping out door and frame to replace with a white UPVC door set to
match the rest of the house windows.
The problem with any varnish is that once it cracks .. water gets in and
under ... and soon by capillary action it starts peeling.
If you want to avoid that then use a micro-porous wood finish (Sikken
Filter 7 etc.)
I had a similar problem with an oak garage door. I stripped it and used
a wood cleaner with a bit of sanding to get it back to a nice colour
and then finished with OSMO UV Protection Oil
Still looks good after three years.
 I can't for the life of me remember the name but still have some so
could take a look this evening. IIRC it came from somewhere around
Glasgow. Not that that is much help.
Just had a look. The cleaner that I used was Osmo Wood Reviver. This is
a liquid in a bottle but that seems not to be available now. They have
something similar in a gel form, which may be easier to use but I don't
know if it is the same formulation.
On Sunday, May 19, 2013 9:38:52 PM UTC+1, Stephen H wrote:
It should come back with a good sanding.
The best long term solution I have found, bar none, is Epifanes High Gloss Clear
applied as per their spec., up to seven coats, it is extremely long lasting. I
did a garden bench with it over 5 years ago and bar touch up once a year it is
still in excellent condition.
An easier alternative which we use on a wood framed gazebo, is Osmo. Very thin
so easy to apply. Renewed once a year (this Gazebo sits in full sunlight) it
stands up to it well.
I can email you a pdf report on exterior grade finished if you p.m. me off group
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