What is overmolding

There are very similar between plastic overmolding and 2k injection molding, simply explain there is two point difference.

1, Plastic overmolding is using normal single nozzle injection molding machine to produce the two different type of plastic parts in one ( or two different color of plastic parts in one solid part), overmolded process means move the first part (substrate part) or melt inserts (insert molding) to the subsequent mold (over mold) and molding to get the final part.
2K injection molding is using the 2K injection molding machine to produce two or three materials (colors) in one solid part, molding process is complex but fast, efficient, and high quality, 2k molding unit cost is less […]