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Closed Cell Foam Sheets (Read 657 times)
 
Don Stephan
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Closed Cell Foam Sheets
Jul 27th, 2016 at 6:52am
 
A vacuum chucking demonstration by our wood turning group showed me how useful it can be, and I've started acquiring and making some of the components.  Having difficulty however finding any sheets of closed cell form, which I think I'd prefer in 1/8" thickness.  Neither Michaels nor Hobby Lobby shows it on the web site for the stores nearest me in Cincinnati.  Can anyone point me to a source?
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Ron Sardo
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Re: Closed Cell Foam Sheets
Reply #1 - Jul 27th, 2016 at 7:44am
 
Are there any other craft stores or departments stores that carry craft supplies in your area? If not try amazon.
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Re: Closed Cell Foam Sheets
Reply #2 - Jul 27th, 2016 at 8:15am
 
Do a Google search for 1/8" closed cell foam and a bunch of places pops up.. including Home Depot and eBay. Smiley
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Tom Hamilton
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Re: Closed Cell Foam Sheets
Reply #3 - Jul 27th, 2016 at 9:15am
 
Hi Don - You may have better luck looking at "adhesive foam sheets", or just foam sheets.

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Another source I use all the time are the thin white foam sheets used in shipping.

You can easily test the foam to see if it's closed cell by putting it up to your mouth and trying to blow through it. You can blow through open cell foam and you can't blow through closed cell foam.

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Re: Closed Cell Foam Sheets
Reply #4 - Jul 27th, 2016 at 10:28am
 
I used a gum rubber gasket material available at industrial gasket supply stores. Very soft rubber and long lasting . If you go this route be sure to get the gum rubber gasket material that has a gluable side, otherwise it won't stick as well to your chuck drum or faceplate. This stuff is also very good for tail stock supports blocks, soft face holds and does not mark work piece.
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Don Stephan
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Re: Closed Cell Foam Sheets
Reply #5 - Jul 27th, 2016 at 7:01pm
 
While getting ready for some vacuum veneer pressing I found a sheet of 1/4" closed cell foam I bought 18 months ago at Michaels.  It still had the manuf label so I called in the UPS to the Michaels store and lo and behold the store did in fact have closed cell foam.  I had to settle for 1/16" and 1/4", but beats a blank.  Many of the returns of a Google search were not in fact 1/8" sheet - many were much thicker foam sheets and some were simply spray foam.
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Re: Closed Cell Foam Sheets
Reply #6 - Jul 28th, 2016 at 8:45am
 
Just to clarify or possibly make things more confusing.
There are many types of closed cell foam available.The size of the cells, the flexibility of the material itself (ability to conform to shapes) can all play a part. Not all are well suited for using with a vacuum  chuck.
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Don Stephan
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Re: Closed Cell Foam Sheets
Reply #7 - Jul 28th, 2016 at 6:46pm
 
Uh-oh.
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Joe Penn
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Re: Closed Cell Foam Sheets
Reply #8 - Jul 29th, 2016 at 8:25am
 
Most mouse pads work well.
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Tom Coghill
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Re: Closed Cell Foam Sheets
Reply #9 - Jul 29th, 2016 at 1:40pm
 
I use the same stuff that Tom (above) references.  Its a buck a sheet and comes in all sorts of colors.  Be careful as sometimes I have had the color transfer (very mild and never on a finished surface). Thumbs Up
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Don Stephan
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Re: Closed Cell Foam Sheets
Reply #10 - Aug 4th, 2016 at 4:24pm
 
This is not intended to be an exhaustive study, just reporting my experience.  A Michaels store here in Cincinnati carries "Creatology" brand of flexible foam sheets in approximately 1/16" and 1/4" thicknesses.  A Hobby Lobby store carries "Silly Winks" brand of flexible foam sheets in approximately 1/8" and 1/4" thicknesses.  Both brands seem to work well as gaskets for vacuum clamping on the lathe.
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Gary D Baker
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Re: Closed Cell Foam Sheets
Reply #11 - Aug 4th, 2016 at 7:24pm
 
I get about self adhesive 5x8 sheets at Wal- Mart.  $2 or $3 for about 15 or so.  Also, if you want to not get that little ring that comes from pressure in the middle of your bowl try a piece of suede leather next to the bowl.  I get leather aprons from Harbor freight.  Since I cut off the pockets anyway, I use them to put between the vacuum thingy and they bowl. No marks on my bowls.  For purposes of this not being spam, although my grandfather new Sam Walton, I have no association with Wall-Mart ... and have never been to China, so no association with Harbor Freight either.
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