Casting Polyurethane foam armrests

[staneja]

We are looking at making polyurethane foam armrests. We need this item in small quantities (500/year) Can anyone guide me thorugh the material selection and manufacturing process for such items. I am told we can cast polyurethane at room temp in selastic rubber moulds?

 

polyurethane needs to be "cooked" in order to cure. You can use silicon or epoxy molds, but with 500 parts a year, you are much better off with an aluminum mold.