separator membrain, what material?

[tweakedlogic]

First of all, I've been lurking around here for a long time now. I finally registered today. Thanks for all the info I've gathered.
I'm building my second generator. I'm using 8x8 20 ga 316 plates. I keep going back to wanting a separator cell. I don't know what the the membrane material is called. So i don't know what to search for to find a vendor. I found this but they don't tell you what the material is, and won't answer my emails about cutting a custom size.

So what should I use? Where do I get it?

[myoldyourgold]

First of all, I've been lurking around here for a long time now. I finally registered today. Thanks for all the info I've gathered.
I'm building my second generator. I'm using 8x8 20 ga 316 plates. I keep going back to wanting a separator cell. I don't know what the the membrane material is called. So i don't know what to search for to find a vendor. I found this but they don't tell you what the material is, and won't answer my emails about cutting a custom size.

So what should I use? Where do I get it?

The material used by most is Uncoated Ripstop nylon.
http://www.seattlefabrics.com/nylons...1.1%20oz%20RS0
The other is the finest nylon used in the slick screening industry. Both must be uncoated.

The problem with both of these materials is they do not prevent bleed over. The reservoirs must have exactly the same pressure so have to be connected at the bottom but any large bump, steep grade, fast stop will result in uneven pressure and one of the gases will leak into the other. The only membrane that prevents this is patented and prohibitive in price. It is used in fuel cells. The gains by splitting will never be as good as can be obtained by a well setup good HHO reactor producing high quality gas. People selling this stuff have a different story which is mainly hype in my opinion.

[tweakedlogic]

Thank you for the info. And thanks for the link. I'll check, but I doubt anyone in Memphis can laser cut it for me. Probably going to have to ship it with specs to some where.

I'm not too concerned with some bleed over. Absolute separation is not a goal. If a little O2 gets mixed in, I don't think I'll even notice. Just trying to see what gains there are to be had if any. This is going in a 4.0 Explorer. EPA rated @ 17 avg in 1992. Add in the lift and 33" tires and it's pretty much a brick on stilts.

[Shane Jackson]

Another material you can get local is landscape fabric.

[threshie3]

Nafion membrane and other brand names are used in many fuel cells and new (previously HHO) generators to block the migration of O2 into H2 as they are respectively generated by the anodes and cathodes.

[aceras624]

why dont you want the Oxygen?