In the last two weeks I saw a 12 x12 sheet of gasket material in some woodworking catalog, but now I cannot find it anywhere. Anyone remember seeing such stuff? This has been a senior day.
- posted
17 years ago
In the last two weeks I saw a 12 x12 sheet of gasket material in some woodworking catalog, but now I cannot find it anywhere. Anyone remember seeing such stuff? This has been a senior day.
Go to Walmart craft department. Buy a Foamie, it is closed cell foam. About one $ a sheet.
Bill in WNC mountains>
don't buy from a woodworker's catalog. try any of the following:
I think I've got this stuff covered in my article on the subject - of course I haven't read it since I wrote it a few years ago and hte memory grows dim - you can DL the article from my web
bill n
Hello Gerald,
I am using 1/16" Duro40 Buna-N (Nitrile) rubber sheet bought from an industrial supplier. It comes in 3' widths, so I have a bit extra.
Greg G.
Thanks. Will try it.
Does it stay soft enough to seal after the first day?
The only wet suits in this part of the world is what you get at a rainy funeral.
Thanks again. I read it.
Thanks, Greg. But if you are down this way anytime soon, I'll give you a spalted sweetgum blank, already roughed out.
Don't get down that way much since my sisters moved from Macon, and Redstone Arsenal proved to be better pickings than Warner Robins AFB when picking up Military test equipment. No plans to go back to Florida anytime soon, either. Used to contract work to Dawson Mathis's brother in Julington Creek, FL, but, according to the woman I visited with this April, he died last year. So... excuse the rambling.
FWIW
Greg G.
I've been very happy with this:
Mac
I have very good luck with weatherstripping foam, which comes in rolls with an adhesive back.
I find if I use a soft substance for the seal, the work will move and that acutally causes more trouble - the seal made from hot melt will leak a little, but not too much if the object is pretty round, and the vac will suck it into place - if it slips, the hot melt heats up and glues it in place, and if it really leaks, I put a little bit of a plastic bag over the leak.
For sure.... I tried packing foam first.. It sealed ok, but if you put a little pressure on the bowl, it would move... sort of a weird feeling..
The stuff from Craft Supplies is like a thin mouse pad without the slick side... seems to seal well and compress enough under vacuum to not have that movement..
The hot melt didn't work for me, but I'm not a hot melt user normally and it does take a certain skill/experience level to get a uniform bead..
I used silicon sealer for a while and it was ok, but had to be reapplied every few bowls..
It's all your fault, anyway, Bill... You got me hooked on this vacuum thing.. *g*
Mac
At 3/8", I'd think that would be a bit too thick. (3/8"x16"x16", $12.50)
I ordered a sheet of this 1/16"x18"x21", $7.25 stuff: a few weeks ago and am very pleased with it. The stickum is tenacious! (I've ordered from Aftosa several times and have been pleased with every order - and I've yet to find a more economically priced beveled mirror supplier.)
I used Buna-N (Nitrile) rather than neoprene, for its resistance to abrasion and chemicals. 3' x3' x 1/8" sheet of Duro40 for about $20. Works pretty well, soft "sticky" surface, and keeps the workpiece stable. It recovers from indentation well, and as long as the rim is reasonably flat, grips tenaciously. For more flawed rims, thicker material could be used.
In the end, any material that works is better than no vacuum chuck.
FWIW
Greg G.
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