


RIGID & FLEXIBLE POLYURETHANE FOAM AND BUILD-TO-PRINT COMPOSITE PARTS
General Plastics has been meeting the stringent requirements of engineers and design teams in diverse industries for over 80 years. Commercial, military and composite manufacturing companies use LAST-A-FOAM® rigid and flexible polyurethane foam sheet stock for its proven mechanical properties and extraordinary versatility. They also depend on us to provide high-quality, high-performance composite assemblies and finished custom parts.
We work with our customers through the design process, feasibility, fabrication and delivery of custom parts. Whether you need high-temperature tooling boards, core material or custom fabricated assemblies, expect quality, uniformity and stability of materials with General Plastics.
From the oceans’ depths to deep space, we shape great ideas into reality

CERTIFICATIONS
ISO 9001:2015/AS9100D
Mil-I-45208A
Boeing Company D6-82473
ITAR-Compliant

PRODUCTS
LAST-A-FOAM® rigid and flexible polyurethane foam products, renowned for their strength, stability, uniformity and unique physical characteristics, satisfy wide-ranging applications and meet the highest standards.

MARKETS
We provide creative solutions for diverse industries. Our expertise, high-quality foam materials, and cost-effective solutions have enabled us to support engineers and design teams from dynamic industries.
OUR CAPABILITIES
SUB-ASSEMBLY
Our high-capacity production facility enables us to provide customers with end-to-end solutions including fabrication of sub-assemblies. With our help, customers can reduce manufacturing steps to optimize their supply chain.
CAST / MOLDED PARTS
We produce custom-mold parts using flexible and semi-flexible polyurethane foam materials. Our unique formulations and built-to-print capabilities enable us to provide optimal solutions for density-to-part-weight control, void control, surface quality, and physical properties.
MACHINING
Our production facility includes multiple sizes of CNC machines, including 5-axis machines, to fit your needs and specifications. Our customer service, engineering, and CNC teams will work closely with you from concept to completion.
TOOLING
Our comprehensive services enables us to manage all aspects of your custom program. This includes supporting you with part and tool design and mold tooling manufacture as we produce parts through all phases of completion.
THERMOFORMING
We offer vacuum forming services for various thermoform materials such as ABS, polycarbonate, acrylic and PVC/ABS mix. Materials are formed to customers’ specific size and shape requirements.
COMPLEX LAMINATES
We provide build-to-print standard and custom complex laminates for myriad parts and assemblies. We have created laminate parts for diverse military, commercial, industrial, aerospace and marine applications.
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Resources
NEWS

Polyurethane foam core provides a cost-effective option for ACP Composites’ specialized medical positioning table
General Plastics Manufacturing company is a Tacoma, Washington state-based manufacturer of composite core and custom molded parts for aerospace, automotive
TECHNICAL PAPERS

Long-term Aging of Polyurethane Foam Used for Radioactive Materials Transportation Packages
Transportation packages for radioactive material containers require durable materials to achieve the level of performance required by regulation to protect
CASE APPLICATIONS

Filling the Need for Consistent, Reliable and Cost-Effective Composite Core Material in Sandwich Panels
Customer Information: Founded in 1985, ACP Composites is a women and family-owned composite materials fabrication company that specializes in the