Globe Composites | MOLDED COMPOSITE STRUCTURES

Thermoset Compression Molding of BMC Architectural Lighting Components

At Globe Plastics, Inc., we were able to demonstrate the superiority of our processes when an architectural lighting customer asked us to manufacture an enclosure for use in a harsh chemical environment. We manufacture molded composite structures, which are perfect for this kind of application due to their chemical resistance. We started off by providing product design assistance and tooling design for the one-cavity thermoset compression mold. Using UL Listed BMC (bulk molding compound) and our 500 ton compression molding machine, we manufactured the enclosures, which are 10" in diameter, 14" high, between 0.156" and 0.500" thick, and weigh 2,700 grams. We used our 500 ton clamping force machine to mold the enclosures to tight tolerances of ±0.005" with a shrinkage allowance of 0.0015". Featuring molded-in inserts and molded-in threads, the enclosures were wired then potted to prevent moisture wicking. After molding, the enclosures underwent dimensional and visual inspection as well as water and air leak testing. Working from customer specifications and 2D CAD drawings, we followed UL standards to produce the enclosures and now manufacture 20,000 of them annually for our domestic client.

This kind of project is an everyday occurrence at Globe Plastics as we move from design through tooling and thermoset compression molding into finishing of hundreds of parts and components for the architectural lighting industry. To learn more about our unique capabilities, contact us today.

Thermoset Compression Molding Capabilities

Product Description
Molding for chemical and harsh environment enclosures
Capabilities Applied/Processes
Primary:
Engineering
  • Product Design Assistance
  • Tooling Design
Thermoset Compression Molding - 1 Cavity
Secondary:
  • Powder Coating
  • Potting
  • Wiring Installation
Equipment Used to Manufacture Part
500 Ton Compression Molding Machine
Overall Part Dimensions
Product Diameter: 10"
Product Height: 14"
Product Weight: 2700 grams
Tightest Tolerances
± 0.005"
Shrinkage Allowance: 0.0015"
Maximum Clamping Force: 500 Ton
Material Used
UL Listed BMC (Bulk Molding Compound)
  • Material Thickness: 0.156" - 0.500"
Material Finish
Powder Coated
Special Feature
Molded-In Inserts, Molded in Threads
In process testing/inspection performed
Dimensional Inspection, Visual Inspection
Water and Air Leak Testing
Industry for Use
Lighting - Architectural
Volume
20,000 per Year
Delivery/Turnaround Time
4 - 6 weeks
Delivery Location
North America
Standards Met
Customer Specifications, 2D CAD Drawing
UL