PDA

View Full Version : looking for Gaskets for drycells



JonDoh
09-30-2008, 05:38 PM
I'm wanting to build a dry cell...... does anybody know where to get gaskets?

Painless
09-30-2008, 05:50 PM
I'm wanting to build a dry cell...... does anybody know where to get gaskets?

I cut mine from 0.040" thick PVC shower pan liner from Lowes.

Roland Jacques
09-30-2008, 07:10 PM
I cut mine from 0.040" thick PVC shower pan liner from Lowes.

Is .040 too thin? What kind of performance do you get?

I got 0.125" form Gainger highemp silicon A bit pricey though. Im looking for a cheaper opption also.

hydrotinkerer
09-30-2008, 07:59 PM
Is .040 too thin? What kind of performance do you get?

I got 0.125" form Gainger highemp silicon A bit pricey though. Im looking for a cheaper opption also.

I was looking at the 3/16" neoprene for spacers. The cost is cheaper but I don't know about compatability issues.

hygear
10-01-2008, 08:31 AM
I was looking at the 3/16" neoprene for spacers. The cost is cheaper but I don't know about compatability issues.


I've used neoprene for months with no compatabilaty issues stemming from exposure to KOH(potassium hydroxide) whatsoever.

I got them from a local gasket company in Tampa Fl. They cut them to my specs cheaper than me with a razor knife(they keep the scraps).

hydrotinkerer
10-01-2008, 03:52 PM
I've used neoprene for months with no compatabilaty issues stemming from exposure to KOH(potassium hydroxide) whatsoever.

I got them from a local gasket company in Tampa Fl. They cut them to my specs cheaper than me with a razor knife(they keep the scraps).

When looking at neoprene it is rated by a durometer scale(hardness). Do you know what your neoprene was rated. I think if its to hard it won't seal. If it's to soft it won't hold it's shape.

hygear
10-01-2008, 05:27 PM
When looking at neoprene it is rated by a durometer scale(hardness). Do you know what your neoprene was rated. I think if its to hard it won't seal. If it's to soft it won't hold it's shape.

I'm not sure what hardness neoprene I got,and they're closed for the day I'll call tomorrow and find out for you.

JonDoh
10-01-2008, 10:50 PM
A local gasket company gave me some examples of their rubber gasket material..... What kinda effect does that have with KoH or Baking Soda (what I use)??

Boltazar
10-02-2008, 12:02 AM
http://www.rubbercal.com/Product_line.html
Material to make gaskets

H2OPWR
10-02-2008, 01:43 AM
At any local rubber supply outlet you can buysheet rubber at almost any thickness and size. It is not expensive and can be cut easily with an exacto knife. I am close to posting pictures and videos of my new 100 plate generator using this gasket type.

Static HHO
10-10-2008, 07:36 PM
I'm wanting to build a dry cell...... does anybody know where to get gaskets?


I don't know what size you're looking for here. I have mine made by a local gasket & rubber company. I had to pay $100.00 for each die size. Now, I just pick up the phone and order a bunch. UPS gets them here in a day or two.
I have several hundred on hand, right now. My size closed WFC is 5" x 13" - outside by 4" x 12" inside Material - BunaN or Neo

My meduim size WFC measures 5" x 9" outside by 4" x 8" inside

Let me know at: randy@hhydrogas.com

Cost? Depends on how many you want and how many I have in inventory.
Cheers,
HHO-ing in N. GA

tinkit
12-02-2008, 08:33 PM
Tire intertubes:)
Tinkit

GreenEngineer
12-12-2008, 11:02 PM
EPDM rubber sheets is the best material I've found to make your own gaskets. I think it's better than Neoprene because the chemical resistance is the same, and it's a little more rigid (keeps it's thickness better). I got 2 1/16" x 12" x 36" sheets for under $20, which gives me 24 6x6 gaskets.
Check it out!

http://www.grainger.com/Grainger/items/1MYD2

Painless
12-12-2008, 11:13 PM
Is .040 too thin? What kind of performance do you get?

I got 0.125" form Gainger highemp silicon A bit pricey though. Im looking for a cheaper opption also.

I've been using the gaskets with my Lowes based dry cell design. I've gotten 2.33 LPM from 25 plates (5N) at approx 5.4 MMW.

BoyntonStu
12-16-2008, 10:36 AM
I've been using the gaskets with my Lowes based dry cell design. I've gotten 2.33 LPM from 25 plates (5N) at approx 5.4 MMW.

Rubber inner tubes are 0.050" and they are free.

Truck tire stores have them.

No leaks.

BoyntonStu

VanHalen
12-16-2008, 08:36 PM
Rubber inner tubes are 0.050" and they are free.

Truck tire stores have them.

No leaks.

BoyntonStu

Do they bleed off or wear away? This is probably what Im going to use :D

BoyntonStu
12-17-2008, 09:57 AM
Do they bleed off or wear away? This is probably what Im going to use :D

I just keep them pumped up to 30 PSI.

BTW You do not have sand the ribs or writings on the tubes to make it all even.

They squish down just fine on my Amoeba Cell.

Please measure the thickness.

Perhaps there are thinner tubes out there.

BoyntonStu