With the mold completed, all that’s left is to bolt the two sides together and inject the liquid plastic. Here [Precious Plastic] shows off a rather interesting approach where they attach the ...

The Department of Plastics Engineering has laboratories containing nine machines for thermoplastics ... The laboratory contains two state-of-the-art thermoplastic injection molding machines and a ...

They’re made by blowing compressed air into a mold full of liquid plastic using the same process Wiffle balls and some plastic bottles are formed, according to the USA TODAY Network. The Bettses ...