Vulcanized O-Rings Vs One piece molded O-rings 2

[Mech5656]

Hello everyone,

I am curious about your experiences with Vulcanized O-Rings compared to One-piece molded O-rings for non-standard o-rings. Have you encountered any failures with Vulcanized O-Rings? Your insights would be appreciated. In one of the instance, our vendor is quoting Vulcanized O-Rings so I wanted to know this.

 

[TugboatEng]

Is this for a static or dynamic seal?

 

[Mech5656]

Dynamic application. Also, have you encountered vulcanized O-ring failures in static applications before?

 

[TugboatEng]

I've glued some o-rings in the past but I avoid the process now. However, even with vulcanization it seems that o-ring splicers suggest or strongly state their products are acceptable for static applications only.

This one says ok for static:

https://www.globaloring.com/vulcanized-rings/

This one says must not use for dynamic:

https://cormanufacturing.com/2021/02/26/what-are-vulcanized-o-rings-and-when-to-use-them/

 

[Orange_kun]

I have used them before in prototype quantities for a static, low pressure application.

I would trust the manufacturer to do a much better job than I can in house with one of those vulcanizing kits. I would not trust them for a dynamic application. If you really need a custom size, get a custom molded solution. Still cheap, still fast.

 

[Mech5656]

Thanks to everyone for your responses. I value your input.