The path to a winning product

JMS Composites is committed to change and utilizes the latest technologies and techniques that are essential to remain competitive in the custom composites marketplace.

Open Molding

• Hand Lay-up | Spray-up. A single surface mold is used for this process. Fiberglass fabric and catalyzed resin are placed against the mold surface and brushes and rollers are used to eliminate air pockets. Thickness is governed by the number of material layers on the mold.
• Thermoforming
• Spray-up. A combination chopper and spray gun is used to simultaneously deposit fiberglass chopped roving and catalyzed resin into the mold in an adaptation of the hand lay-up process.
• Closed Molding | Resin Transfer Molding(RTM) | Vacuum Bagging. A relatively low-cost, closed mold process, resin transfer molding (RTM) provides quicker molding cycles and a highly reproducible thickness. Part size is limited only by the expense of mold fabrication and clamping devices. Capabilities include pigmentation, gel-coating and post-finishing. Core materials, rib formers and structural inserts may be added for highly stressed areas. Resin systems can be modified for a broad range of performance characteristics and allow faster gel and cure times, resulting in faster output and shorter lead times.
• Vacuum Forming. Another open-mold process, vacuum forming produces strong, durable ABS parts that are cosmetically pleasing and provide long life and durability. Typical parts include dash assemblies, duct work, door panels and trim pieces. Its low cost makes it an attractive manufacturing option.

View our printable Capabilities Statement