Liquid Tape

[wess]

A very good insulator that people may want to try is "Liquid Tape" sold at Wallyworld for about $3.50. It is applied by brush like PVC cement in the same size can (4oz). If you are using copper connectors it should stop the green goop from forming. Using all S.S. is best.

[Bob]

hehehe I had 3 cans of the stuff..and all 3 had turned into a rubber mass on the end of the brush!
...guess it don't keep too long ! HAHAHHAHA
yah that should work very well actually ! especially with 2 coats !
...
Bob......

[wess]

Yep, well it does get firmer after awhile, just like pvc cement. I dont think lye has an effect on it. I just thought it would be useful to know. You should double coat or tripple coat whatever to be sure. I used it on my experimental carbon rods & it held up good. Carbon wasnt good tho...lol

[randy]

Hey cool, I might use that stuff on my cells, mine is mounted in my front bumper, all the connections are exposed outside the cell, when it rains I see a slight increase in amp draw, I think it's caused by the entire container getting wet.

[Bob]

thats Odd Randy... its probly the area by the posts that gets wet thats doing it...
paint every connection real good and the pipe between them ...that should do the trick.
...
Bob.......

[candyman55]

That stuff may work in some cases but with a strong enough mixture I'm not sure. When I used a strong KOH mixture it disolved permatex red and black gasket sealer.

[Bob]

Do you mean RTV silicone sealant ?  ACK ! not good at all !
...
Bob.......

[candyman55]

I haven't tried that, I had some but one of the campers in my campground had a leak and I gave it to him. Stuff is $$$$ though.

[randy]

I used red RTV where the bolts go through the ABS, haven't had any problem but I'm using K-aid

[LTCFISHER]

I tried the liquid tape and KOH turns it white and the it becomes useless.
I do not use silicone for sealing the electrodes exiting the cel either.  I use a very reliable system, for example: For 1/4-20 threaded bolt etc. I use 1st a nut, 2nd flat washer, 3rd nylon washer, tygon tubing cut to length ( cell thk. nylon wsh. thk.x2 +1/32"), next nylon wshr.,flat wshr.,lock wsh., then nut. tighting this up compress's the tygon and makes for a perfect seal going through the top of the cell.
Just another way to seal the gas inside.

[candyman55]

I agree that is the way i sealed the electrodes in my plexiglas cell. except I used 1/2" clear tube with 3/8" Bolts. I never had a leak (around the electrodes). I used the permatex around the perimeter it also turned white and failed within a week. Next time i will use weld #40, I'll just have to cut it apart if I need in there.

[Bob]

I used washers and gas line pieces...with nuts and washers too ...they seeped water all the time
I discovered by concaveing the washer next to the gasline piece that it would force the gasline into the bolt threds and seal much better... but even that leaked...
I then put bathtub calking on the threds in the gas line area and that cured the problem
however after about a month it started leaking again ! so I took it appart scraped off all the bathtub calking as it is water saulable... and got rid of that.... I then bought a tube of Red High heat RTV silicone sealant... I put some on both sides og the washers, gasline and on the threds ... and it set for a day in the hot sun drying... it has not leaked sense, not even after the Acid cleanup treetment.
but.... the container has again sprung a leak sense the acid treetment ! ... so I need to pull the unit off and seal it up again.
....
Sense I am running 2 Randy cells in parallel at 30 amps the gas output is better than it has been
but its still not enough  and I'm not going to be happy till I get a good 80 amps going into 4 cells
...the only way to do that is a bigger altenator.
....
Bob....

[geezer]

just a thought... use a larger drill bit and countersink hole slighty slip on neoprim o ring then nylon washer.if you make hole to big use facet washers.

[Bob]

Yah that would help a bunch ! that combined with the convex washers would cure any leak problems I'm sure...
pushing inward from both ends would realy secure the thing !
...
good thinking !
...
Bob.....

[wess]

Teflon tape works well to seal screw holes etc. and isn't bothered by either lye. About the liquid tape, if the solution affects rubber it will affect the liquid tape also.