[Steve]

Hi,

I’ve been trying to cast parts for trombone mouthpieces. They have a fine thread, and the casting epoxy I’m using right now doesn’t set hard enough to hold the threads. They tend to deform and the parts separate. The original parts were made of bakelite, which is very hard and tough. Is there an epoxy resin (or even a polyester resin) that has the same hardness and durability of bakelite?

Thanks

[Katherine Swift]

Hi Steve,

One of our casting resins will work for this project. Choosing the specific one depends on how much resin you’re mixing and pouring at once.

For pours of 3 ounces or less, the Resin Obsession super clear resin is what you want:  https://shop.resinobsession.com/collections/resin/resin-obsession-super-clear-resin
For pours of 3 ounces or more, the Resin obsession deep pour casting resin works great:  https://shop.resinobsession.com/collections/resin/resin-obsession-deep-pour-resin

If you need help figuring out how much resin you need, our free resin calculator can do it for you: https://resinobsession.com/resin-calculator/

[Author]

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