Welcome to Hope Plastics Co. Inc.

Custom injection molding and mold making.

Where we take your ideas and turn them into reality.

What is injection molding?

It's a process where a mold is clamped into a molding machine then melted plastic is injected into the mold under high pressure, as soon as the plastic is cool enough to retain its shape, the machine opens the mold and ejects the part. The whole process takes approximately one minute. The wall thickness of the part controls the cycle time. The thinner the part the faster the job runs, the thicker the part the slower the job runs. Typically injection molded parts are roughly 1/8 inch thick but can be as thin as 15 thousandth of an inch or as thick as ½ inch or more.