Glass fiber-reinforced plastic parts

G.W.P. manufactures customer-specific glass fiber-reinforced plastic parts according to drawings for industry.

We specialize in the economical production of small batches of high-quality glass fiber-reinforced components.

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We offer you everything from a single source: The manufacture of glass fiber-reinforced prototypes, the construction of models and glass fiber-reinforced forms, as well as finished, surfaced treated glass fiber-reinforced shaped parts. If desired, we will fabricate glass fiber-reinforced components with additional parts of plastic or metal, and will produce finished assemblies. Whether a machine element or housing for electronics – we will accompany your project from the draft drawing through initial sampling and preproduction batch to the logistics of series production.

Take advantage of G.W.P.'s experience in the manufacture of glass fiber-reinforced plastic parts!


  • Evaluation of the diecast part drawings and files
  • Design suggestions to optimize production
  • Documentation of the project (schedules, quality assurance reports)
  • Initial sampling four weeks after the contract is awarded
  • Fast change implementation


Lathing, milling, drilling and grinding are used in high-quality mechanical finishing of components (conventional and CNC).
Service treatment
The appearance and properties of glass fiber-reinforced plastic parts can be substantially influenced by the suitable surface finish. Possible options are graining of areas to be touched, wet-painting, screen printing, pad printing, EMC coatings (Al or Cu/NiCr).
Advantages of glass fiber-reinforced plastic components
Glass fiber-reinforced plastic parts are superior to unreinforced plastic parts due to their superior resistance to pressure, bending, tension and impact and, depending on the application, can offer various advantages in comparison with conventional plastic parts. The fact that they are very weather-resistant makes them useful for any outside application. Their resistance against ultraviolet radiation and strong temperature fluctuations is much better than simple plastics. The good insulating properties make the material particularly attractive for housings in the electrical and electronics industry. The chemical resistance and high rigidity predestine the material for components in the chemical industry and machine construction. Wherever there are particular demands for strength, distortion resistance and resilience, the use of this fiber composite material should be considered. 
Types of plastic that are used
Depending on the requirements and application, thermoplastics such as polyamide, polystyrenes or polyolefins can be used for glass fiber-reinforced plastic parts as well as thermosets such as melamine, phenolic, epoxy or silicone resins. A typical plastic is for example glass fiber-reinforced polyamide PA 6 GF30% for electronics housings, and machine elements that are subject to a high mechanical stress and high temperatures. 
Types of glass fiber-reinforced plastic production offered
  • Injection molding machines with 60 - 1,300 tons clamping force
  • CNC machining centers (max. 1300 x 500 x 560 mm)
  • CNC lathes and milling machines
  • CAD center for the conventional file formats of DXF and STEP
Glass fiber-reinforced plastics are a very high-quality type of fiber/plastic composite. It takes more time and effort to produce glass fiber-reinforced plastic components, which makes the process more expensive than simple injection molded parts. However, given that it is very economical for G.W.P. to produce glass fiber-reinforced plastic molds and molded parts in China, it may be very economical for you to produce small batches of such parts.
Do you still have questions regarding tolerances, plastics or in the project process? Consult our FAQ list or the plastics guide, and talk with our engineers and technicians about the production of glass fiber-reinforced plastics!