HF resistant wax

[bostonmike]

I am in need of an acid resistant wax or acid resistant chemistry. Something that can stand up to HF etching with no undercut, as well as being soluble in KOH. Any help?

 

[unclesyd]

All Hf bottles at one time were coated with a very pure grade of parafin wax. I don't think it will readily disolve in KOH.
Also the etching kits that were onced sold for glass used a mixture of waxes,red, that was readily souble in warm water.
You might look at the wax emulsions that might be broken by KOH as they arn't 100% wax.