Making Hydrostatic Diaphragms for Environment Caps

[buddhasummer]

I thought clear.....no blue....no red....was the sought after color. I guess I just don't know what fashion is.

Happens with age.

You're gonna miss my next party too if you're not careful....

 

[Umuntu]

Does not matter what thikness is. It just should be enough thikness to prevent diafragm goes to the chink between reg hull and plastic dry camera pistone (so, condoms is too thin for diaphragm )
For example you can use old broken mask to take material for diaphragm.

Flexibility is important. So the thicker it is the softer/more flexible the material needs to be.

IIRC the Diameters of the Apeks diaphragms are 1.3/8" (although 1.2/5" seems more accurate) for the clear environmental diaphragm and 1.1/2" for the main diaphragm.

 

[squid.dive@ gmail.com]

Flexibility is important. So the thicker it is the softer/more flexible the material needs to be.

IIRC the Diameters of the Apeks diaphragms are 1.3/8" (although 1.2/5" seems more accurate) for the clear environmental diaphragm and 1.1/2" for the main diaphragm.

Hi I wonder if you may know or anybody else what material is the grey main I st diaphragm in Al or Ap regulators looks different then the rubber-like

from mares or hog regs?

 

[АлександрД]

Tarpaulin | Heavy Duty Tarpaulin Sheets | Tarpaulinstore
something like it.
Fabrics for truck trailers.
Folk`s name is Tarpaulin, I think.

 

[squid.dive@ gmail.com]

It was taken from friends speaks service kit and I dont think its from truck covers as it has to work under pressure and have to have some standard norms EN250 for starter as the regulator itself.But will check it out thx

 

[CuriousRambler]

The texture of it looks a lot like the material used to make whitewater rafts. There are a few flavors of boat, but Hypalon (DuPont) is generally regarded as some of the best. A lot of manufacturers use PVC or polyurethane as well. Here's a 2x96" roll of Hypalon material for $8US, only comes in black. If you want colors, they also sell 6x18" patches in a few colors here.

PVC patch kits are also available, in several thicknesses/deniers.

Depending on how critical thickness is, it makes sense this stuff would be a good candidate. Impermeable to air/water, extremely UV resistant, very abrasion resistant, flexible, etc.

 

[Umuntu]

Hi I wonder if you may know or anybody else what material is the grey main I st diaphragm in Al or Ap regulators looks different then the rubber-likeView attachment 566691
from mares or hog regs?

See
1st Stage Diaphragm: Replace or Re-Use?