Cable Glands for Dummies

iratnl · 15th April 2008, 11:11

I'm about to replace the Computer on my Sport KISS ( I could resist the pull of a Pursuit no longer ! ). I have a new cable gland from Jetsam, and was just wondering - is it as fool proof as it looks; anything I should take special care with / torque settings of the gland etc.

I'd hate to get a leak due to not fitting it correctly.

I presume the old one cannot be reused ?

**Dave Sutton** · 15th April 2008, 20:14

Using them is as easy as it looks!

Note:

DO NOT over torque them. Just past finger tight is all you need. Too tight and they will actually cut into the cable and cause a leak.

They *can* be reused.

Dave

.

iratnl · 17th April 2008, 07:14

I've just removed the old gland, complete with the cable, as the 2 are completely joined by a potting compound inside the gland; it certainly looks waterproof

I would like to do this with my new cable gland, but have no idea of suitable potting compounds. The stuff in the old gland is black, and quite hard.

Anyone got any recommendations ?

**Dave Sutton** · 18th April 2008, 00:39

They really don't need to be potted, which is why I said they were reusable. But, if you do want to pot them, any good RTV silicone sealant will work. Colors are clear, black, and white. All are the same. Make sure it's real RTV (Room Temperature Vulcanizing) silicone sealant, not 'caulking'.

Dave

.

Mdemon · 18th April 2008, 20:10

Quote: (Originally Posted by Dave Sutton)

any good RTV silicone sealant will work. Colors are clear, black, and white. All are the same. Make sure it's real RTV (Room Temperature Vulcanizing) silicone sealant, not 'caulking'.

For safety's sake, make sure the sealant you use does NOT give off acetic acid when exposed to humidity/water. Almost all of them DO, and in some instances this can cause corrosion in any nearby electronics. Some give off acetic acid when setting and then don't give it off again - this is OK. The best just don't and they are hard to track down, but not unbelievably expensive.

Here endeth the lesson in sucking eggs.

**Dave Sutton** · 18th April 2008, 22:07

Quote: (Originally Posted by Mdemon)

For safety's sake, make sure the sealant you use does NOT give off acetic acid when exposed to humidity/water. Almost all of them DO, and in some instances this can cause corrosion in any nearby electronics. Some give off acetic acid when setting and then don't give it off again - this is OK. The best just don't and they are hard to track down, but not unbelievably expensive.

Here endeth the lesson in sucking eggs.

Dead right, sorry to have not mentioned this before: Best bet is to buy what is used to make salt water aquariums. Zero post-cure issues, as the fishies are unbelievable sensitive.

Dave

.

iratnl · 26th April 2008, 05:36

Thanks for your help everyone

15th April 2008, 11:11	#1 (permalink)
iratnl Tekreational Diver Current Rebreather/s: Sport Kiss Other Rebreather/s: Inspiration Classic Join Date: Apr 2006 Location: Eastbourne, UK Posts: 110	Cable Glands for Dummies I'm about to replace the Computer on my Sport KISS ( I could resist the pull of a Pursuit no longer ! ). I have a new cable gland from Jetsam, and was just wondering - is it as fool proof as it looks; anything I should take special care with / torque settings of the gland etc. I'd hate to get a leak due to not fitting it correctly. I presume the old one cannot be reused ?
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15th April 2008, 20:14	#2 (permalink)
Dave Sutton Living on Animal Farm Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Classic Kiss rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,445	Re: Cable Glands for Dummies Using them is as easy as it looks! Note: DO NOT over torque them. Just past finger tight is all you need. Too tight and they will actually cut into the cable and cause a leak. They can be reused. Dave . __________________ . "All animals are equal, but some animals are more equal than others" Professional Small Boy: Never Successfully Cubicled.
(Online)

17th April 2008, 07:14	#3 (permalink)
iratnl Tekreational Diver Current Rebreather/s: Sport Kiss Other Rebreather/s: Inspiration Classic Join Date: Apr 2006 Location: Eastbourne, UK Posts: 110	Re: Cable Glands for Dummies I've just removed the old gland, complete with the cable, as the 2 are completely joined by a potting compound inside the gland; it certainly looks waterproof I would like to do this with my new cable gland, but have no idea of suitable potting compounds. The stuff in the old gland is black, and quite hard. Anyone got any recommendations ?
(Offline)

18th April 2008, 00:39	#4 (permalink)
Dave Sutton Living on Animal Farm Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Classic Kiss rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,445	Re: Cable Glands for Dummies They really don't need to be potted, which is why I said they were reusable. But, if you do want to pot them, any good RTV silicone sealant will work. Colors are clear, black, and white. All are the same. Make sure it's real RTV (Room Temperature Vulcanizing) silicone sealant, not 'caulking'. Dave . __________________ . "All animals are equal, but some animals are more equal than others" Professional Small Boy: Never Successfully Cubicled.
(Online)

18th April 2008, 20:10	#5 (permalink)
Mdemon SiegeEngine II Current Rebreather/s: Inspiration Classic Home Build Other Rebreather/s: Inspiration Classic Home Build Join Date: Feb 2007 Location: SWUK Posts: 1,866	Re: Cable Glands for Dummies Quote: (Originally Posted by Dave Sutton) any good RTV silicone sealant will work. Colors are clear, black, and white. All are the same. Make sure it's real RTV (Room Temperature Vulcanizing) silicone sealant, not 'caulking'. For safety's sake, make sure the sealant you use does NOT give off acetic acid when exposed to humidity/water. Almost all of them DO, and in some instances this can cause corrosion in any nearby electronics. Some give off acetic acid when setting and then don't give it off again - this is OK. The best just don't and they are hard to track down, but not unbelievably expensive. Here endeth the lesson in sucking eggs. __________________ www.southwestmafia.com Last edited by Mdemon : 18th April 2008 at 20:19.
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18th April 2008, 22:07	#6 (permalink)
Dave Sutton Living on Animal Farm Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Classic Kiss rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,445	Re: Cable Glands for Dummies Quote: (Originally Posted by Mdemon) For safety's sake, make sure the sealant you use does NOT give off acetic acid when exposed to humidity/water. Almost all of them DO, and in some instances this can cause corrosion in any nearby electronics. Some give off acetic acid when setting and then don't give it off again - this is OK. The best just don't and they are hard to track down, but not unbelievably expensive. Here endeth the lesson in sucking eggs. Dead right, sorry to have not mentioned this before: Best bet is to buy what is used to make salt water aquariums. Zero post-cure issues, as the fishies are unbelievable sensitive. Dave . __________________ . "All animals are equal, but some animals are more equal than others" Professional Small Boy: Never Successfully Cubicled.
(Online)

26th April 2008, 05:36	#7 (permalink)
iratnl Tekreational Diver Current Rebreather/s: Sport Kiss Other Rebreather/s: Inspiration Classic Join Date: Apr 2006 Location: Eastbourne, UK Posts: 110	Re: Cable Glands for Dummies Thanks for your help everyone
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