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Post by Rockhobbit on May 9, 2013 19:18:12 GMT -5
What do you use, other than Opticon, to make soft stone stable and how does it hold up on the wheels? What do you use to fill gaps?
Sheri
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on May 9, 2013 19:36:55 GMT -5
I haven;t yet, but I am planning to, if the need arises, use CA that is cyanoacrylate or super glue. The knife guys stabilize woods by soaking them in CA, put them in a vacuum chamber and the draw high vacuum onm the item, release to ambient pressure thru four cycles. No more bubbles emanate from the wood after the second cycle. Two more for certainty.
The vacuum causes the air in the wood to expand and bubble free, leaving vacuum behind, release the vacuum and the CA is pulled into the wood by this remaining vacuum. I expect the same with soft materials like some chalky fluorescents.
CA polishes up real nice.
You could use a commercial outfit to. In AZ is K&G Supply.
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Post by Rockhobbit on May 10, 2013 11:48:58 GMT -5
very interesting!
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Mark K
Cave Dweller 
Member since April 2012
Posts: 2,816 
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Post by Mark K on May 10, 2013 20:26:15 GMT -5
I used acetone with Superglue dissolved in it to stabilize some fossils I got in MT. It worked great for the fossils, but the malachite I put in it to absorb it crumbled, so I don't know what to think about that. Come to think of it, I need to clean that up.
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The Dad_Ohs
fully equipped rock polisher
Take me to your Labradorite!!
Member since September 2012
Posts: 1,860
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Post by The Dad_Ohs on May 10, 2013 20:33:13 GMT -5
I put a 1/2 thick piece of Pet Wood under a lamp for 3 hours until it got too hot to touch then spread on some CA and sert it on wax paper under the lamp again to harden... the majority of it got absorbed... I hope, but it didn't go all the way thru so I am going to cut it and see how it did... will post my results when I get to it!
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The Dad_Ohs
fully equipped rock polisher
Take me to your Labradorite!!
Member since September 2012
Posts: 1,860
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Post by The Dad_Ohs on Jun 30, 2013 11:11:14 GMT -5
as a follow up the glue didn't go a quarter way into the pet wood which really sucked because when I cut it, it fell apart on me. I guess it was still too thick even with the heating of the glue & wood.....I know there are some really thin CA type glues on the market that are made for doing this, and the prices are not bad either... but if you already have the thicker ca, and don't have a use other than rock stabilizing, I would go with the CA & Acetone, and see how that works for you!!
If anyone can give me a mix ratio, I would be grateful!!
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Jul 2, 2013 16:07:10 GMT -5
mario, perhaps you should try the vacuum/CA thing. I am buying a vacuum pump from Harbor Freight on Thursday. I have the CA. Juts need a chamber to pull the vaccum on. I am thinking one of those pain pressure pails that hold a 5 gallon bucket of paint.
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The Dad_Ohs
fully equipped rock polisher
Take me to your Labradorite!!
Member since September 2012
Posts: 1,860
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Post by The Dad_Ohs on Jul 6, 2013 17:49:27 GMT -5
mario, perhaps you should try the vacuum/CA thing. I am buying a vacuum pump from Harbor Freight on Thursday. I have the CA. Juts need a chamber to pull the vaccum on. I am thinking one of those pain pressure pails that hold a 5 gallon bucket of paint. I may have to look into that... might try a combination of CA & Acetone with the vacuum to really get it into the pet wood.. really sux too because I have to cut it at least 1/2 inch thick for it to stay together in the saw and then carefully remove it after so it doesn't crumble. |
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Post by Rockoonz on Jul 6, 2013 20:31:28 GMT -5
Wood turners use Epoxy resin and vacuum to stabilize softer woods or heavily spalted woods and burls. California Chicken uses vacuum on their chicken while marinating to get the flavor all the way through the meat.
The difference with both is the wood or meat is grained and the vacuum opens it up to accept the treatment, while rock is pretty solid. I think vacuum will help with cracks or extremely porous rock, but I doubt you will get it all the way through.
Remember if your rock is altered in any way and you plan to sell or swap it, full disclosure is the rule.
Lee
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Post by bobby1 on Jul 6, 2013 23:35:59 GMT -5
In an article written by some conservators at the Smithsonian they found that CA adhesives broke down in a few years but epoxy lasted much longer so they discontinued any use of the CA adhesives.
Bob
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