Pur overmolding tool seal off to injection molded article

A process for edge sealing around the edges of a part having at least two lateral sides during an overmolding of a polyurethane on a substrate part comprising the steps of:

• A. Providing an injection mold cavity including a first upper platen forming mold and a second lower mating part forming platen;
• wherein said second lower mold platen has a corresponding two or more laterally moveable core sliders which move laterally to allow sealing member to be presented at the part lateral sides during molding of the PUR layer;
• B. Molding a substrate part formed between the first upper platen and the second lower mating part forming platen;
• C. Providing a second overmold cavity for overmolding a polyurethane or other covering over the substrate part;
• and
• D. Providing a seal at the flashing edge on each of said at least two sides of the second overmold cavity and overmolding the polyurethane or other covering over the substrate part such that there is substantially no flashing material where the seal is located at each of the two sides.

A process for edge sealing around the edges of a part having at least two lateral sides during an overmolding of a polyurethane on a substrate part comprising the steps of:

• A. Providing an injection mold cavity including a first upper platen forming mold and a second lower mating part forming platen;
• wherein said second lower mold platen has a corresponding two or more laterally moveable core sliders which move laterally to allow sealing member to be presented at the part lateral sides during molding of the PUR layer;
• B. Molding a substrate part formed between the first upper platen and the second lower mating part forming platen;
• C. Providing a second overmold cavity for overmolding a polyurethane or other covering over the substrate part;
• and
• D. Providing a seal at the flashing edge on each of said at least two sides of the second overmold cavity and overmolding the polyurethane or other covering over the substrate part such that there is substantially no flashing material where the seal is located at each of the two sides.