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Post by Condor on Jan 18, 2013 22:30:52 GMT -5
I have a 15lb Thumlers Tumbler and the rubber lid gasket has worn out. I can easily order them but would like to try my hand at making some myself being that they are simply made of rubber. Problem is, I've gone to different places looking for this type of thing and cannot find anything. I was thinking tire tubes. Any suggestions as to what kind of place to find a sheet or something along these lines without having to order one?
Condor
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Thunder69
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Post by Thunder69 on Jan 18, 2013 22:34:48 GMT -5
How about an auto parts store ...I think they have sheets so you can cut your own....John
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Post by orrum on Jan 18, 2013 22:50:50 GMT -5
Yes they do. Agri supply companys have linings that are rubbery for equop tire too.
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jspencer
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Member since March 2011
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Post by jspencer on Jan 18, 2013 23:11:07 GMT -5
Commercial roofs are also made with a tough rubber membrane and have welded seams if you happen to have a neighbor or friend in the business. Or pond liner material from Home Depot may also work.. But a good parts supply store should have the different gauges of rubber gasket material.
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keystonecops
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Post by keystonecops on Jan 19, 2013 0:44:39 GMT -5
I think Catmandewe posted on here bout using inner tube. PM him. Later Clyde
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snowdog
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Post by snowdog on Jan 19, 2013 8:21:02 GMT -5
How many are you wanting to make ? -- I have some of the roofing material that I could prob cut a small piece off of. --would need the width & length
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Post by johnjsgems on Jan 19, 2013 8:49:52 GMT -5
Back when I worked on boilers In would buy 2 ply neoprene material from industrial gasket/belting supplier. Maybe try a google search for something like that. The place I went to was in the middle of the oil field supplies in Long Beach/Signal Hill area in CA. I'm guessing with the internet you can find it pretty easy. Another good source would be McMaster Carr on line. They carry everything hardware related.
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DBARRD
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Post by DBARRD on Jan 19, 2013 12:02:21 GMT -5
I used to work for a roofing company here in Alberta Canada, we did a EDPM rubber roofing that was then held down by ballest the rubber was made by Firestone so I think that any large commercial roofing company would be able to get it David
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quartz
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breakin' rocks in the hot sun
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Post by quartz on Jan 19, 2013 12:14:44 GMT -5
I've been making rubber gaskets for a good many years, innertube works very well. I generally get 'em free [often with torn out stems] from tire stores or truck-heavy equipment field service outfits. One thing I've learned is that a lot of the gasket and membrane mtl. is too hard, smooth, and slick to seal well, need something with a little softness and "tooth"to it. You have to remember, tumbler gaskets have to work with little clamping pressure, as opposed to most gaskets that have a bunch of pressure applied to clamp them and provide a seal.
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Minnesota Daniel
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Post by Minnesota Daniel on Jan 19, 2013 12:33:01 GMT -5
Rubber today is all, almost all anyway, synthetic. It is a mixture various things formulated to meet the needs of the end use, so not all things called rubber have the same properties. I once did a search to see what tumbling barrels are actually made of, and found one source that indicated it was the same material used to make tires. I can't say whether that is in fact exactly correct, but it's seems reasonable given the similarity of the rock to rubber contact. I don't know this for a fact, but I suspect that not all rubber would necessarily wear the same inside a tumbling barrel.
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jspencer
freely admits to licking rocks
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Post by jspencer on Jan 19, 2013 17:34:23 GMT -5
After doing a lot of heavy rounding in 3lb. barrels with 40 grit one of my lid gaskets wore a hole in the center. I used an innertube patch kit from the suto parts store and it works like a charm. So using innertubes makes good sense to me.
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Post by catmandewe on Jan 19, 2013 23:30:53 GMT -5
I use old innertubes but one layer will not seal right, you need 2 layers. A spent. 223 casing punches a perfect hole in the rubber. Put the casing in a cordless drill and it spins perfect holes in the rubber.
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quartz
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Post by quartz on Jan 20, 2013 11:11:23 GMT -5
Thanks for the .223 tip, I'll have to fiddle with the idea a little, don't have one, but I do have a lathe. I punch my gasket holes with a paper punch, after match marking them thru the cover with a pencil. The new paper punches available here aren't good enough to do the job, I bent up a couple trying. Found a couple old ones at garage sales that work great.
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The Dad_Ohs
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Post by The Dad_Ohs on Jan 20, 2013 11:23:22 GMT -5
You can also try, if you find one to fit, jar openers as they have a rougher surface meant to grip a smooth jar lid. failing that, I bought a sheet of gasket material at Lowes once and it worked well for I needed it. I replaced a gasket and just cut one out of that material, its a little thicker so it sealed well with little pressure. It comes in sheet paper sized or square 12 x 12. probably get it bigger too but not what I needed so I didn't look. A leather punch will work well for holes too. Leather is a tougher material and will easily cut through most rubber.
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Post by Condor on Jan 20, 2013 21:44:09 GMT -5
Thanks for all the suggestions and offer Snowdog. I ended up going to a parts store and sure enough I was able to get about four feet x two feet of rubber lining for fifteen bucks. Cut one piece and so far it is working great.
Condor
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