agatemaggot
Cave Dweller
Member since August 2006
Posts: 2,195
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Post by agatemaggot on May 7, 2007 21:51:38 GMT -5
I am thinking about building a tumbler with a new type of barrel configuration. McMaster-Carr used to have a 2 part rubber compound that was used for this type of thing but they quit carrying the product. For a prototype I can take the darn thing to the local Rino- Liner shop but I don't know how long that business will stand up. Has anyone seen the Silicone liner kits for sale anywhere Harley
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Rockygibraltar
fully equipped rock polisher
Member since February 2006
Posts: 1,404
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Post by Rockygibraltar on May 7, 2007 23:16:51 GMT -5
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agatemaggot
Cave Dweller
Member since August 2006
Posts: 2,195
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Post by agatemaggot on May 8, 2007 0:22:59 GMT -5
This material looks similar, is it fairly thick, or does it run easily ?.
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Post by connrock on May 8, 2007 4:53:37 GMT -5
Harley, A product you might want to consider is EPDM rubber used on roofs and pond liners. I use it for the cover gaskets on my Thumler's Model B's and it works pretty good. I did a quick search and found this: www.aqua-mart.com/8x10.htmlbut you can probably get it from a lumber yard,etc. The only problem I see is it's thickness and the glue used to hold it together, The thickness is only 45 mills but you can easily double or triple it. The glue is another story as it is very expensive.It kind of vulcanizes the rubber so it becomes one piece and not gust glued together. The rubber wears like iron and is easy to work with. The truck bed liner material won't last and is way too rigid for a tumbler barrel. There is a type of rubber that we ,as pipefitters called "Live Rubber" but I don't know the trade name for it. It is a light tan color and comes in different thicknesses.This rubber will outlast you in a tumbler!! I'm positive that the 1/4" sheet material would last a lifetime in a tumbler. I've been trying to find it on the web as I write this post but all I can find is a bunch of technical "garb" for engineers and that's NOT my cup of tea!! LOL The worst part of making your own liners to fit what ever barrel configuration you have is the seams.They have to be completely smooth and free of any little pockets that will carry grit/slurry. This is why I tend to lean toward the EPDM as it is actually one solid piece after gluing it. It's a VERY messy job as well!! I made my very first pond in my back yard from 2 scrap pieces of EPDM roofing material glued together and it's still free of wear and leaks of any kind after some 10-15 years. The "Live Rubber" would be ideal but I don't know how the heck you could glue it together??? connrock
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Rockygibraltar
fully equipped rock polisher
Member since February 2006
Posts: 1,404
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Post by Rockygibraltar on May 8, 2007 21:16:41 GMT -5
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