Does anyone know about the requirement of a mold that is used for the manufacture of expanded foam products ,such as seat cushions and the like?
do they have to be made of aluminum, or can they be made from high density tooling board. also do they require venting for escaping gasses?
I used to be involved with making blow molds, so molding is molding, but im pretty sure these molds would be quite simple to manufacture.
can any one help, or suggest a link for info.
Thanks