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 Varnish,
http://www.epifanes.com/
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