Neither metallic nor political:

Does anyone know a good source for this stuff, at a better price than
McMaster:

http://www.mcmaster.com/#standard-fi...sheets/=vs4sfu

I'm looking for 1/4" thick. 3 or 4 inch wide sheets would be nice,
because I could just make my part that size, and save on cuts.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

On 2/5/2015 3:08 PM, Tim Wescott wrote:
Neither metallic nor political:

Does anyone know a good source for this stuff, at a better price than
McMaster:

http://www.mcmaster.com/#standard-fi...sheets/=vs4sfu

I'm looking for 1/4" thick. 3 or 4 inch wide sheets would be nice,
because I could just make my part that size, and save on cuts.


I use Regal Plastics in Dallas.

Google for G10 fiberglass to find a closer source?

In article ,
Tim Wescott wrote:

Does anyone know a good source for this stuff, at a better
price than McMaster:

Well, I instantly note that the 3"x72 "electrical grade" 1/4" sheet is a
lot less expensive (10 cents/sq in and it is fire retardant) than 4" x
96 "mechanical grade" (17 cents/sq in, 20 for fire retardant) and that's
before you ship it, where 6 feet is a big saver unless you are ordering
a lot. The vague mechanical descriptors are also better ("excellent"
..vs. "good" and higher temperature) - so if you hadn't looked down the
page there's that for free.

--
Cats, coffee, chocolate...vices to live by
Please don't feed the trolls. Killfile and ignore them so they will go away.

On 2/5/2015 3:08 PM, Tim Wescott wrote:*
Neither metallic nor political:*

Right. The discussions here revolve around rightist politics, construction work, how stupid democrats are, who's black or white and who's making a gun or bullets.

What do you make of that mix?

Tim Wescott wrote:

Does anyone know a good source for this stuff, at a better price than
McMaster:

http://www.mcmaster.com/#standard-fi...sheets/=vs4sfu

I'm looking for 1/4" thick. 3 or 4 inch wide sheets would be nice,
because I could just make my part that size, and save on cuts.

You might try searching for NEMA G10. It's a fairly standardized
glass-epoxy laminate, widely manufactured and used. Probably a
bit better than the polyester from McMaster. It's no fun to machine.


hth,

bob prohaska

On 2/8/2015 2:05 AM, User Bp wrote:
Tim Wescott wrote:

Does anyone know a good source for this stuff, at a better price than
McMaster:

http://www.mcmaster.com/#standard-fi...sheets/=vs4sfu

I'm looking for 1/4" thick. 3 or 4 inch wide sheets would be nice,
because I could just make my part that size, and save on cuts.

You might try searching for NEMA G10. It's a fairly standardized
glass-epoxy laminate, widely manufactured and used. Probably a
bit better than the polyester from McMaster. It's no fun to machine.


hth,

bob prohaska

G10 was used for PCB's for some time until someone noticed it caught on
fire.

FR4 was then used as a replacement - Fire retardant now used everywhere.

Naturally I've used far more exotic material in SiGe designs and GaAs as
well.

Martin