I have an invention idea, that will need to be injection molded out of stretchy material. Not just soft/flexible. it has to have quite a bit of stretch capacity to it for the purpose in mind. It doesn’t have to stand up to extreme heat like an engine gasket… not going to be used for anything like that at all. it’s something that some people might leave in they’re vehicle for long periods of time, so let’s say it could be exposed to -20 F to 110 F temp range. Let’s say it would be a ring, 2 inch inner diameter, 1/8 inch wall, so 2.25 outer diameter. And I want it to be able to stretch to like 3 inch inner diameter. What injection molding materials could do this? I visited a couple injection molding factories in town, but they were not much help. Most of what they make is of harder materials, so I was hoping someone on here could chime in who has worked with these types of materials. They said if I brought in the specs for the mold and materials and they had the ability to do it they would…. They just weren’t experts on such materials.
Thankyou for your time, and hopefully someone can suggest some possibilities.
Jono