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Main Boards => PowWow => Topic started by: razorsharptokill on June 12, 2008, 02:26:00 PM

Title: polyurethane won't dry on bocote and cocobolo
Post by: razorsharptokill on June 12, 2008, 02:26:00 PM
I didn't realize that bocote was that oily. I let my new riser dry for 2 days and it was still tacky.
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: Ted Fry on June 12, 2008, 02:42:00 PM
Best to spray with Deft first , or even cover with cyanoacrylate , then use the poly over that
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: **DONOTDELETE** on June 12, 2008, 02:55:00 PM
Is that because it has oil in the wood....
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: John Scifres on June 12, 2008, 03:13:00 PM
It'll dry in few months  :)

The superglue trick was a godsend for me.  Just spread it over the bocota first.  Let it dry and then poly will do fine.
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: kennym on June 12, 2008, 06:25:00 PM
Superglue on the bocote bow I made....
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: whossbows on June 12, 2008, 07:16:00 PM
superglue works good for me.it seals the wood in about min.
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: mmgrode on June 12, 2008, 08:01:00 PM
Yeah, it will take months to dry without properly sealing first.  Like others, I have had good luck with cyanoacrylate(superglue)  then spar or poly over that.  Good luck, Matt
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: JRY309 on June 12, 2008, 08:11:00 PM
I let a bacote bow sit for six months and it still was not dry.After I stripped it down then I just sealed it with super glue,same goes for cocobola and gaboon ebony.I just spread the super glue with my finger,I use a latex glove.
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: '46 on June 13, 2008, 01:07:00 AM
Superglue, superglue/acetone or shellac. It's gotta be sealed before the finish is applied.
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: kadbow on June 13, 2008, 11:29:00 AM
Getting that sicky finish off to seal it is fun too.  I just learned the hard way on my first bowbuild (Dryad bowblank).  Superglue did the trick.
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: kennym on June 13, 2008, 05:11:00 PM
I used a scraper to remove the first gummy coat,then used the cyon.....(can't spell it)
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: razorsharptokill on June 13, 2008, 10:06:00 PM
A cotton buffing wheel takes it off pretty good. How much superglue does it take to seal a riser?
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: warden415 on June 14, 2008, 10:14:00 AM
I had that problem once, bought some kind of "all natural" stripper from sherwin williams. It was in a white plastic container and the stripper was a greenish color. Wipe it on let it sit and it took the poly off. The stripper was almost a paste consistancy. It worked pretty well and wasnt that expensive. Maybe 10 or 12 dollars. Saved me a ton of scraping and then I sprayed a Sherwin williams 2 part conversion varnish on it. No problems since. With that SW 2 part I can spray any wood without sealing and it dries in 5 to 10 minutes. Steve
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: Ric Anderson on June 14, 2008, 10:38:00 AM
Shellac is what I would recommend.  Much easier to deal with than superglue, but takes a little longer to dry.
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: kadbow on June 14, 2008, 02:08:00 PM
It doesn't take too much super glue.  Just spread it around evenly and don't miss any spots.  Dries in no time.
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: R.W. on June 14, 2008, 05:26:00 PM
Ric Anderson,

The shellac (Zinsser Bullseye aerosol)I have says not to use under polyurethane finishes. Have you had any problem with poly over shellac, or do you use a different top coat?

Thanks
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: razorsharptokill on September 08, 2008, 10:23:00 PM
Gotta spread it thin and fast I discovered or it will look like clear finger paint! UGH.
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: WidowEater on September 09, 2008, 12:30:00 AM
gaboon ebony is the same way, makes gluing iffy too if not prepared properly
Title: Re: polyurethane won't dry on bocote and cocobolo
Post by: rainman on September 09, 2008, 10:20:00 PM
Don't use spray on shellac use the paint on kind.  Polyurethane should stick to it, I know it sticks to shellac you make yourself.  I always use shellac as a sealer because all finishes will stick to it.  It can even  be used between lacquer and polyurethans.

Dan