Ron
I think only varnishes with oil dry via oxidation. I think shellac
can be reconstituted with alcohol because it dries by evaporation.
As Tim said you can add alcohol to thin it out especially if it starts
thickening up on you but there is definitely a shelf life where it will no
longer dry. I don't know the chemistry behind that.
Anyway no big shakes as its only bar tape.
Mike
On Monday, February 11, 2013 10:00:37 AM UTC-5, Ron Mc wrote:
>
> shellac/varnish/mastic - it oxidizes in the jar, which is the curing
> process.
> If you want to keep it fresh (very important if you have expensive mastic
> varnish, which is about $15/oz,. or even quality spar varnish) use this
> product - Bloxygen - spray it under the bottle cap or can lid before you
> close it.
> https://www.google.com/search?q=bloxygen&rlz=1C1PRFA_enUS414US414&aq=f&oq=bloxygen&aqs=chrome.0.57j0l3.2750&sourceid=chrome&ie=UTF-8#q=bloxygen&hl=en&tbo=u&rlz=1C1PRFA_enUS414US414&source=univ&tbm=shop&sa=X&ei=QQcZUeKEDdPdqQHbrIHQBg&ved=0CGgQsxg&bav=on.2,or.r_gc.r_pw.r_cp.r_qf.&bvm=bv.42080656,d.aWM&fp=e1c7ac95cf77e9dc&biw=1280&bih=625
>
> On Sunday, February 10, 2013 9:29:35 PM UTC-6, Peter M wrote:
>>
>> Does it really go bad after a while? I am anxiously anticipating the
>> arrival of the Bombadil in a few days but realized my shellac is about
>> 4-5 months old. I made it myself out of button lac, if that makes a
>> difference. I googled around the web and its all woodworking sites who
>> say its past it but this isnt my chiffarobe, its some twine. Hoping
>> someone with more experience will just chime in and let me know it
>> will still "go off" and dry. Otherwise I have to make and strain a new
>> batch which takes a few days. Thanks to anyone who has some learnin
>> here.
>>
>
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