National Manufacturing Group unveils C3 Molding
National Manufacturing Group features its C3 Molding process for FRP molding, offering the surface cosmetics of thermoplastics, the versatility and strength of fiberglass and compression molding cycle times.
Source (All Images) | National Manufacturing Group
National Manufacturing Group (NMG, Troy, Mich., U.S.) announces the launch of its proprietary molding process, C3 Molding (short for cosmetic capped compression molding). This technology is said to enhance parts cosmetically, mechanically and financially.
The C3 Molding process is fiberglass-reinforced, enabling various lamination schedules to meet specific mechanical requirements. Its 5- to 10-min cycle time enables rapid production of molded, finished parts, which is quicker than other fiberglass molding processes, according to the company. It can also simplify molds in reinforcement ribs and bosses for mounting, providing a smooth B-side finish.
C3 Molding includes a thermoplastic cap, offering options such as high-gloss capped ABS for enhanced UV protection and weather resistance, specifically in exterior applications. For interior applications, a textured low-gloss material is available, featuring a molded-in protective film to prevent minor shipping and handling damage.
For surface protection, NMG says this cap ABS surface can enhance scratch, mar and impact resistance, addressing repairs with a quick polish and buff when compared to gelcoat or paint finishes. This eliminates the need for spray, finish and cure times associated with paint and gelcoat, which can lead to cost savings, as well as offer up to a 50% reduction in part price compared to light resin transfer molding (LRTM) with a painted surface.
Additionally, it enables up to a 50% fill ratio in the resin — catering to FST requirements and heat management — which further reduces material costs. With C3 Molding, users can also see reduced expenses through the use of composite tooling, which is said to cost about half as much as traditional steel compression tooling. Plus, a single tool set with the C3 Molding process can produce upwards of 10,000 units per year.
“We’ve harnessed our capabilities to develop C3 Molding, a process that merges the surface aesthetics and cost-effectiveness of thermoplastics with the versatility and strength of fiberglass. This approach also benefits from the rapid cycle times of compression molding,” says Adam Fenton, CEO of NMG.
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