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All Forums >> [Bottle Forums] >> Cleaning and Repairing >> Silicon Carbide Foaming

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Silicon Carbide Foaming - 10/31/2011 7:04:50 PM    stlouisbottles   Posts: 213 Joined: 12/10/2003 Status: offline I was wondering if anyone is having a problem with Silicon Carbide foaming up? I have used it before and never had this problem and in the past couple of months it started doing it. I have not changed anything. Anyone got a answer? Thanks, Post #: 1

RE: Silicon Carbide Foaming - 10/31/2011 7:24:40 PM    chosi Posts: 106 Joined: 2/25/2008 From: Northern Virginia Status: offline I always end up with some black foam when I take a bottle out of the tumbler. The amount of black foam seems to vary.  Maybe dirtier bottles produce more foam, although I've never been able to make that correlation. Usually the foam rinses off easily, but occasionally it leaves a stain on the bottle.  When that happens, I've found that lime-a-way will take the black stain off of the bottle. _____________________________ - Chosi ( See my website at www.chosi.org ) (in reply to stlouisbottles) Post #: 2

RE: Silicon Carbide Foaming - 10/31/2011 7:48:35 PM    AntiqueMeds   Posts: 2034 Joined: 3/6/2009 From: Frederick, MD. Status: offline I notice I got it with copper but didnt see it with glass beads, whatever that tells you. _____________________________ My web site - http://www.AntiqueMedicines.com/ Medicine BLOG : http://antiquemedicines.com/blog/ Email me : mknapp@antiquemedicines.com (in reply to chosi) Post #: 3

RE: Silicon Carbide Foaming - 11/1/2011 4:42:25 AM    idigjars Posts: 1783 Joined: 12/24/2004 From: Michigan Status: offline try adding a tablespoon or two of automatic dishwasher powder I found that used to keep the foam down for me. Paul _____________________________ I collect and buy Antique Canning Jars I collect & buy Piso Cure bottles in odd colors + advertising items (in reply to AntiqueMeds) Post #: 4

RE: Silicon Carbide Foaming - 11/1/2011 7:02:27 AM    stlouisbottles   Posts: 213 Joined: 12/10/2003 Status: offline I will give that a try today. I am just puzzled why it started foaming up after several years. (in reply to stlouisbottles) Post #: 5

RE: Silicon Carbide Foaming - 11/1/2011 5:46:06 PM    diggerdirect Posts: 275 Joined: 5/2/2010 From: New York State Status: offline Might not hurt to clean your copper, I run mine through a muriatic bath once or twice a year. I'm assuming its 1200 grit silicone carbide, I had excessive foam for over a month last summer, right after opening a new container (1 lb size). After that was gone so was the mega foam. Some foam is normal but that one pound made foam as thick as a chocolate mousse. Just may be the batch of compound to. Al (in reply to stlouisbottles) Post #: 6

RE: Silicon Carbide Foaming - 11/1/2011 5:49:47 PM    stlouisbottles   Posts: 213 Joined: 12/10/2003 Status: offline I will try the copper cleaning. The Silcon Carbide is the same batch I have been using for the past year. (in reply to stlouisbottles) Post #: 7

RE: Silicon Carbide Foaming - 11/9/2011 10:29:10 PM    stlouisbottles   Posts: 213 Joined: 12/10/2003 Status: offline Well I tried the dish washing detergent and the acid cleaning the copper and neither worked on the foaming. Anybody got anything else? (in reply to stlouisbottles) Post #: 8

RE: Silicon Carbide Foaming - 11/9/2011 10:40:28 PM    AntiqueMeds   Posts: 2034 Joined: 3/6/2009 From: Frederick, MD. Status: offline how much air do you leave in the bottle and tube? If you add more water to displace more of the air you might get less foam? also, foam is made of of tons of tiny bubbles. To keep foam from forming you need an anti-foaming agent (soap is just the opposite) http://en.wikipedia.org/wiki/Defoamer < Message edited by AntiqueMeds -- 11/9/2011 10:50:19 PM > _____________________________ My web site - http://www.AntiqueMedicines.com/ Medicine BLOG : http://antiquemedicines.com/blog/ Email me : mknapp@antiquemedicines.com (in reply to stlouisbottles) Post #: 9

RE: Silicon Carbide Foaming - 11/10/2011 11:41:52 AM    redbeardrelics   Posts: 94 Joined: 9/29/2006 Status: offline I tend to believe most of the foaming comes from two general sources/causes. First, I think it is mostly the insoluable contaminates that accumulate in the mixture of copper, water, and cleaning/polishing powders. These "insoluable contaminates" are the sickness, rust, glass and other deposits that get removed from the surface of the bottle while tumbling, as well as the minute particlies of pvc, silicone, rubber, etc. that get polished off your tubes and stopples. Most of these small contaminates getting into your cleaning mixture are insoluable to the mixture, and being lighter in density, tend to float to the top. I have noticed that I get more foam when tumbling a sicker/dirtier bottle, or when using a heavier cutting compound that will also eat away at the tubes and stopples quicker. Adding a new or refurbised tube or stopple will usually make more foam for me as well. I suspect from more contaminates coming off the new equipment. I suspect the second main source/cause of foam is the inadvertant introduction of detergents into the cleaning mixture. How many of us first clean a dug bottle with some kind of detergent to remove loose dirt etc. before tumbling? Even trace amounts of detergents left on the bottles and your cleaning equipment can enter your cleaning mixture and lead to foaming issues for a long time to come. A thourough clean and RINSE of all tumbling coppers and equipment every now and then is a good thing, but a real pain in the patooty. (in reply to AntiqueMeds) Post #: 10

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