Rubber Air Hoses - Manufacturer's POV

I would like to try number 2 please.

I think I would go for both the EPDM hoses and the NBR hoses and maybe taylor their usage for each particular job.

My problem with some of the statements about chemical resistance may need clarification. All of those materials are chemical resistant in their own right but often they one material will be resistance to some chemicals and not for others while another material will be just the opposite. According to the Parker material comatibility chart for o-rings, EPDM and natural rubber will not hold well in petroleum-based oil spills, being "unsatisfactory," however, EPDM is fine for automotive brake fluids. NBR however, will not do so well in brake fluid, but is fine with fluids like engine oils. I work with a variety of aviation hydraulic fluids and certain ones require different seals for compatibility. contamination with the incorrect fluid causes softening and swelling of the material and for an air hose it will weaken significantly. This could result in a damgerous rupture. When choosing a hose material, definitely think about what you are most likely going to spill on it or drag it through. See the Parker Hannefin website for cited reference material.

rishavrastogi, I would be interested in a 2 if they are still available. Thanks also for the intelligent responses to all the discussion.

Pleasure. I'll send some of each type soon. I can't guarantee when, but I will. Then I'll contact those interested about how to get them to them. Thanks.

Any updates?

I use an air hose almost non-stop all day. The environment is especially tough on hoses as they are dragged all around, sometimes heavy carts run over them and sometimes they are subjected to harsh acidic/detergent chemicals. I think it's as rough as rough gets. Nothing infuriates me more than when a hose has a coil memory. I'ts like working with a huge rubber slinky in tow. I'd be interested in No. 2 if possible......