TIG hose repair?

Dec 03, 2005 5 Replies

I have a one-piece 25' TIG hose that came with my Diamondback torch. I let it get too close to a grinder which took a good notch out of the rubber so that there's a huge leak about 3 feet from the end of the hose.



My question is what is typically done in this case? Is the hose repairable or do I get a new one? (A 22' hose would be OK by me.) Is this something I could fix myself? Looks like I'd need some exotic crimper to seal the end but I could be wrong.


--zeb



Which line was it, th egas in, the water in, or the power + water out?

i

Try black RTV silicone from a car parts store.

Ernie, I saw one of your video demonstrating the "tap-tap " method, how about using a stab-stab motion when adding the filler rod into puddle? holding the filler rod 15-20 degrees? any disadvantage?

Since we are trying to limit our trips to the store I had to make do with what I had on hand. Thanks for the suggestions.

Fortunately the grinder didn't reach the braided copper conductor down the center of the cable.

(BTW This cable is black rubber. This fix probably won't work for vinyl cables.)

Here's what I did. I welded with this fix for about an hour so far with no leaks:

1) Get a small section of radiator hose and cut a wedge out of it as close as possible to the shape of the damage to the cable. You might have to scale off the outer layer of the wedge (as delineated by the cloth reinforcement) to get it down to size. The intention is for the wedge to act as a support for the rubber patch that follows.

2) Get a rubber patch kit from the auto store (on hand in my case).

3) Roughen up the mating surfaces of the wedge with sandpaper. Prime those surfaces with an even coat of tire patch glue and let dry about 2 minutes.

4) Fit the wedge in place and apply pressure for about 30 seconds.

5) Now just apply a tire patch to the outside of the cable following the directions on the kit. When you cut the patch to size, make sure is doesn't overlap itself once wrapped around the cable.

If the adhesion of the patch seems dicey it's either because you used to much or to little tire patch glue. If you used too much (like me) secure the patch with several strong twist ties and let it cure overnight.

6) Remove the twist ties, if any, and leak test the fix.

Later, for added insurance, I'm going to wrap the patch with duct tape.

--zeb

ya Ernie, and I would like to know what alloy filler rod you would suggest for that TIG hose repair.:)

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required