Rubber Verses Vinyl Plastic Hoses Which is Better?
Tuesday, March 25th, 2008I got a call from a customer TIG welding high-end aerospace parts. He bought a complete setup from us a few years ago that featured the Weldcraft® WP-20-25-R TIG torch customized to a WP-20-25-Pro™ package by Arc-Zone.com® with all the goods needed for his new TIG machine.
The reason for the call was that the customer has now spec’d out a TIG torch with vinyl plastic gas hose.
I was a little perplexed. We generally recommend the rubber leads as opposed to vinyl. They are more flexible and easier to handle. The plastic hoses are stiff and are susceptible to damage from heat– like when a hot TIG Torch gets placed on top of a hose inadvertently.
The WP-20-25-Pro™ package that he received features the rubber lead set. And that can be problematic — it seems that the rubber hose, in certain conditions, can absorb moisture from the atmosphere and it can cause impurities in the weld. This may show up when welding reactive metals such as titanium, molybdenum, nickel-based and aluminum based alloys as well as non-reactive metals like stainless steel.
I would be interested to know what your thoughts are — do you have an experience with this issue –let me know by commenting below — first commenter get a free Arc-Zone.com® T-Shirt!



