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  #1  
Old 2013-01-28, 4:50pm
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Default Fume rubbing off

Hi. I made a beautiful wine stopper and the fume is rubbing off. And when I say rubbing off, I mean that it comes off like it's a layer of dust or powder. only the bottom half does that...the part that hot before I attached a base. Is there a trick to making it stick better? Any ideas why it's coming off so easily on only the bottom half? Here is the original stopper (http://www.facebook.com/media/set/?s...3972901&type=1)

Here is the spot that wiped off.
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  #2  
Old 2013-01-28, 5:10pm
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where u use 24 or 22 i been told 22 sticks more to they glass
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  #3  
Old 2013-01-28, 5:34pm
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Either way, it's just a thin layer on the outside of the glass unless it's encased, so it's always a potential problem.
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  #4  
Old 2013-01-28, 5:52pm
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well, I guess my main concern is figuring out why it rubbed off on only part of it and not the other. but it's 24kt. I understand what you're saying Tom. It's just a micro thin layer and just as with any thin coating, will eventually rub off.
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Old 2013-01-28, 5:56pm
LarryC LarryC is offline
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22K or even less will stick better. Also try a thin coating of silver first and then lay down the gold. That has always made the gold stick better for me. I like that treatment on top of black.
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Old 2013-01-28, 6:41pm
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Quote:
Originally Posted by LarryC View Post
22K or even less will stick better. Also try a thin coating of silver first and then lay down the gold. That has always made the gold stick better for me. I like that treatment on top of black.
yes they silver lay first work too and can more colour
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  #7  
Old 2013-01-29, 9:21am
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The fume always has a chance of rubbing off. I knew a guy that would fume heavy on the outside, and "scrap" a pattern into the fume. It usually did this with small bongs, was pretty cool.
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  #8  
Old 2013-01-29, 10:16pm
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I'm no expert, but you may have thinned the layer of fume some when you heated the lower part as you attached it. maybe?
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  #9  
Old 2013-01-30, 5:49am
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are you baking it in (the fume)?
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  #10  
Old 2013-01-30, 7:35am
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The trick is heating it enough that the gold is "fused" with the base glass but not so hot that you're burning it off -- it's a PPP issue!

HTH!
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  #11  
Old 2013-01-30, 7:44am
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Quote:
Originally Posted by Lea Zinke View Post
The trick is heating it enough that the gold is "fused" with the base glass but not so hot that you're burning it off -- it's a PPP issue!

HTH!
+1^^

I would venture to say that your not getting the glass hot enough before fuming. Get a nice even red glow and then fume. It should stick better. Keep your flame on the softer side so as to not blow it off too.

Hope that helps.
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  #12  
Old 2013-01-30, 11:24am
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Quote:
Originally Posted by Lea Zinke View Post
The trick is heating it enough that the gold is "fused" with the base glass but not so hot that you're burning it off -- it's a PPP issue!

HTH!
Good luck with that. 24k gold WILL tend to rub off regardless. Silver sticks well to glass, gold sticks well to silver.
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  #13  
Old 2013-01-30, 5:15pm
Firebrand Beads Firebrand Beads is offline
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I've heard someone say they use brass then gold for a better stick, but you better have VERY good ventilation if you want to fume with brass.
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  #14  
Old 2013-01-30, 8:18pm
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What does baking it in mean? neutral flame or keep at oxydizing..back of flame..heat to a glow? and next gold purchase will be 22k. I've heard nothing but good stuff about 22k over 24k for a couple of years now. I'm just still on my first 3 droplets i bought from ABR a looong time ago.

Also, Hi Jenny! and I've never tried fuming brass. I do have pretty good ventilation so maybe ill try it. Thanks!
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Old 2013-01-31, 4:17am
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Check over at The Melting Pot before you try to fume brass. There is a thread there that lists the hazards, you need excellent ventilation AND a respirator. Here is an article from wikipedia. http://en.wikipedia.org/wiki/Metal_fume_fever

I would not recommend attempting to fume brass.
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Old 2013-01-31, 5:35am
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I use gold leaf that I picked up years ago at the local Pearl store. I'd have to check, but it's either 22k or 24k, I know that for sure

When I fume pieces to a surface sheen, I start with glass that is hot hot hot. Not heated fully through, but the surface is as hot as I can get it without compromising my design. After I fume, I cook it in well - that is to say I bathe the piece in a soft neutral to slightly oxidizing flame until the metal fume on the surface begins to glow but not to the point it burns off. Sometimes I just cook it in with my fuming flame, for that matter - I've not experienced any problems thus far.
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  #17  
Old 2013-01-31, 7:59am
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Thanks! I'll try that today and see how it turns out, Chris. Thanks. I think that i maybe have messed it up when I went to attack it to the base. I hope I can let it cool to hold shape and I can reheat it to bake it back in.
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  #18  
Old 2013-02-01, 1:32am
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Larry, never had a problem with mine & it stays perfectly. Just had a customer at a show wearing hers that she bought over a dozen years ago! Sorry it doesn't work for you!

QUOTE=LarryC;4228226]Good luck with that. 24k gold WILL tend to rub off regardless. Silver sticks well to glass, gold sticks well to silver.[/quote]
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  #19  
Old 2013-02-01, 1:50am
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Likewise have not had an issue with 22 K gold on boro. Even placed a bead in a pants pocket with keys for a month and no sign of problems.



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  #20  
Old 2013-02-01, 5:36am
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The silver trick works pretty good too. Unfortunately, glass is one of those intimate crafts that seems to demand trial and error due to individual variances in equipment, timing, climate, the way you hold your mouth, etc

I did the same thing as Alaska mentioned - except it was just for a couple days, after hearing about others having "rub-off" problems.

best of luck!
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  #21  
Old 2013-02-01, 6:57am
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no issues with 24k gold casting grains, no rub off.
i really think it does have to do with how hot the glass is while you fume and how well you bake it in after.
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