Never heard of using varnish on a blade. Is this only done with a new blade or can i also do it with my blade that is a few years old? Just curious since i started to change the rubbers myself and trying to do this the best way possible so my blade ages as little as possible.
Thanks in advance!
Don't worry about aging, thats only looks as long as You keep it away from moisture. Yes You can do it with any blade new or old, but it does not make much sense to do it over an already treated blade.
Make sure the blade is void from rubber (and other) residue.,
Then one thin layer of varnish, make sure all parts are covered (blade only not handle)
Let dry completely ~12 hrs or so.
Then take a sand paper and rough it up lightly so that the glue can attach easier.
When You remove the rubber it is important to do it against the grain (from side to side). Not bottom up or top down. The wood is strongest in that direction. And the longer the rubber stays on the bigger the chance is for rips.
But even if You get rips it's no disaster, most of them are fixable. Small ones just cover with several layers of varnish.
Bigger ones cover with paper drenched in varnish. and real big ones cut a piece of wood veneer and glue it on there and then varnish. After treatment use sand paper to get an even level. Be careful not to sand too much.
Note that most types of clear lacquers can be used instead of varnish. I just do other wood work so I happen to have old fashioned varnish always available.
BTW, I just varnished a new blade last night. Now the handle is getting a linseed oil treatment. Something I do to protect it from sweat and most of the time it looks nicer and sets it apart. That procedure is far from necessary.
Cheers
L-zr