Primitive Archer

Main Discussion Area => Bows => Topic started by: vinemaplebows on February 29, 2012, 08:30:39 pm

Title: Urac
Post by: vinemaplebows on February 29, 2012, 08:30:39 pm

Does Urac need exposure to the air to cure?? I typically wrap my bows in plastic, and need to know if there is air needed for curing????



Brian

Title: Re: Urac
Post by: crooketarrow on February 29, 2012, 08:53:36 pm

  NOT SURE BUT IT WOULD SEAM SO.

Title: Re: Urac
Post by: mullet on February 29, 2012, 09:01:19 pm

Brian;

I've wrapped mine before and it has cured. I'm thinking it starts setting up because of a chemical reaction to the water.

Title: Re: Urac
Post by: PEARL DRUMS on February 29, 2012, 10:24:20 pm

I know plenty that wrap and cure with no problems. I dont myself just because its more of a mess than I already make.

Title: Re: Urac
Post by: vinemaplebows on February 29, 2012, 11:39:17 pm

Thanks! :)

Title: Re: Urac
Post by: Prarie Bowyer on March 01, 2012, 12:26:00 am

The important thing is a little heat and the mix.  dont'be stingy on the powder.  If you are you can get a gummy mess that won't cure.  I had that issue with a glue job.  I was able to take a putty knife and heat gun and get my backing off the bow. 

All my bows are glued with Urac and all are completely wrapped up.

Note.  Sodium chloride is the active setting agent.  The brown powder is just walnut flower.  If you get raw sodium chloride you can get a "Clear Urac".  13:1 is the mix ratio of the Sodium Chloride. Basicaly a drop in enough glue with make a trilam.

Title: Re: Urac
Post by: Onebowonder on March 01, 2012, 01:25:18 pm

Sodium Cloride?  NaCl?  SALT???  Really?  ...and it's a liquid?  I'm trying to think of what sort of reaction would make that happen...

Title: Re: Urac
Post by: Onebowonder on March 01, 2012, 01:27:37 pm

OK, I just called Nelson's.  It's actually Ammonium Chloride that you want.  Salt will not work here...

Title: Re: Urac
Post by: vinemaplebows on March 01, 2012, 01:29:18 pm

Thanks....good info ;D

Title: Re: Urac
Post by: Prarie Bowyer on March 11, 2012, 05:00:13 pm

Quote from: Onebowonder on March 01, 2012, 01:27:37 pm

OK, I just called Nelson's.  It's actually Ammonium Chloride that you want.  Salt will not work here...

Oops, yes.  Amonium Chloride. 

Title: Re: Urac
Post by: NruJaC on March 11, 2012, 08:17:40 pm

Quote from: Onebowonder on March 01, 2012, 01:25:18 pm

Sodium Cloride?  NaCl?  SALT???  Really?  ...and it's a liquid?  I'm trying to think of what sort of reaction would make that happen...

NaCl dissolves in water pretty easily. It's pretty easy to make a Sodium Chloride solution. NH3Cl is similar.