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	The Structural Foam Plastic Injection Molding Process View a more detailed illustration (Slow loading, many pictures) Structural Foam Description Structural Foam Molding is a low-pressure injection molding process that is capable of producing very large structural parts. The molten plastic material is injected into a mold after being mixed with a blowing agent or high-pressure gas. This produces bubbles in the plastic causing it to foam. The foam retains the properties of the plastic but weighs less because of reduced density.(more) Structural Foam Advantages Structural foam yields parts that are thicker and sturdier than injection molding.... less injection and clamping pressures required and less stresses created .... 100% recycled materials are common feedstocks .... multiple parts being simultaneously molded on the same machine cycle. (more)