Yes they actually do, and metrodent does also. I havent ordered any in a very long time, I had a huge box. I do dentures as a favor , so I dont do many. But yes. This ivocap system is probably one of the first generation back in the late 80s early 90s I would think. It came across the pond with me from germany.
I do have a microwave flask and acrylic but I have yet to attempt it. The thought of putting a reline denture in the microwave didnt sound like a good idea and Ive just used naturecryl hi20et to process pack dentures, never microwaved it.