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Offline ardeekay

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glass bedding
« on: July 01, 2012, 09:31:52 PM »
How long is it supposed to take for acraglass gel to set up?  I did a 50-50 mix, (gel - hardener) and after 36 hrs I can still mark the stuff with my thumbnail.. is there a faster bedding material? 
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Offline oneoldsap

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Re: glass bedding
« Reply #1 on: July 02, 2012, 01:41:15 PM »
 Sounds like you used some old stuff . It should be hard in about 12 hours ! The Gel seems to have a rather short shelf life , I've had it go bad and not harden , it will also look grainy when it's bad !
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Offline ardeekay

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Re: glass bedding
« Reply #2 on: July 02, 2012, 08:57:30 PM »
You called it .... its been sitting here un opened for 9 years.. Will it eventually get hard?  or should I dig it out and use some JB Weld in its place?  Have you ever heard of anyone using Bondo instead?  Thats a lot easier to work with.. Bob
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Offline gunnut69

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Re: glass bedding
« Reply #3 on: July 03, 2012, 06:49:30 PM »
Thats pretty old but I've not had acraglass go bad.. sorry. Usually if it starts kicking over it will harden. If there's a problem it is usually a lack of complete mixing. Heating, warming should accellerate the hardening process. Did you add any reenforcement material, (aluminum dust, etc.) as they can slow the chemical process thats the hardening.. Contact Brownells for better info on shelf life.. I've used some kits that were very old but not sure how old.. They worked the same as brand new stock. I'd give it time and see how it hardens, bet it does ok..
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Offline oneoldsap

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Re: glass bedding
« Reply #4 on: July 04, 2012, 08:25:01 AM »
                I have had the Gel go bad in a lot less than 9 years ! No it will not ever cure properly . Dig it out and get some new stuff , this is experience talking here ! Maybe it's the agent that turns AcraGlass into a gel that's the culprit ! That's a good question about the Bondo . I don't see why the fine Tirer Hair wouldn't work , you'd probably have to do some mixing experiments to get the proper ratios , as only a small quantity would be needed . I don't know if it can be died either , more experiments . I'm going to give it a try sometime in the future !
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Offline hoghunting

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Re: glass bedding
« Reply #5 on: July 06, 2012, 05:29:07 AM »
Quote
The Gel seems to have a rather short shelf life , I've had it go bad and not harden , it will also look grainy when it's bad !

Had the same problem a few years ago and contacted Brownells. The tech said to heat the resin in the microwave or put the container in hot water until the resin returns to a buttery consistency. The gel has a 10 year life.

I scraped out the bedding as it never set up, heated the resin, bedded again, and it worked like a charm.
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Offline oneoldsap

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Re: glass bedding
« Reply #6 on: July 06, 2012, 07:45:31 AM »
                      Outstanding , I won't have to throw any more away ! I wonder why that isn't mentioned in the packaging .
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Offline ardeekay

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Re: glass bedding
« Reply #7 on: July 14, 2012, 03:09:51 PM »
I will use that trick.. ( try it anyway just to get rid of the stuff, for not firearm applications..) but in the future, I will not buy any more Brownells bedding stuff... I was  not aware of a 'shelf life.."  If a person can't depend on the material setting up..... what good is it..  I have used JB in the past, and never had any issues with it.. same with a lot of other products that require mixing 2 materials..thanks to all for the input..  but if I wanted to use something that won't set up, maybe duct-tape, or melted crayons would be equal...!!  Bob
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