Is it possible to manufacture plastic water tanks with PVC by rotational molding process?
While this is possible, PVC may not be the best choice. When compared with LLDPE, PVC has a higher specific gravity (weight per fixed volume), a higher cost per pound (compounded by its specific gravity), lower tensile strength, lower heat deflection temperature, poor low-temp impact strength, and the possibility of plasticizer extraction by water. What is the typical wall thickness for PVC? There really is no typical wall thickness. We routinely mold PVC in a range of .040 to .5 wall. With stop-rotation, a uniform .010 wall is possible. Can we use iron dies for Roto moulding, if yes then what oven temperature should be used, or is there any other technical issues while using iron dies instead of aluminum and how to solve them. ? : I’m not sure if you mean cast iron, or carbon steel molds. If you Are using cast iron, DO NOT USE THEM FOR PVC. At elevated temperatures the PVC will let off hydrogen chloride gas that will eat right through them. The same goes for carbon steel. Stainless st
