Plastic Processes

Plastic Processes

Plastic Processes

Quality Service.
Customer Driven.

Custom Molded Plastics represents quality driven companies that offer many processes including, Thermoforming, Rubber Molding, Fiberglass Molding, Injection Molding, RIM, UHMWPE, Prototyping and other Processes. Scroll down to learn about the processes, we look forward to working with you.


  • ISO 9001 & 14001
  • Rotary and single station vacuum & pressure forming
  • Max impression 6’x10’ with a 48″ draw
  • Ability to form commodity and engineered resins up to .450″ thick
  • CNC and robotic trimming including 3 and 5 axis
  • Numerous secondary operations performed
  • Warehousing and JIT deliveries

Rubber Molding

  • ISO 9001 & TS 16949
  • Full service manufacturer of custom rubber molding, extruding, mandrel wrapping, elastomeric bonding, orcomatic molding and calendaring
  • 9 locations in the US, Europe, India and China
  • Full engineering and chemical support

Fiberglass Molding

  • ISO 9001
  • Hand lay-up/spray-up, RTM, light RTM, and RIM
  • Wide spectrum of materials including polyesters, vinylesters (including fire retardant, smoke and toxicity), urethanes, and hybrid resin systems
  • In house design assistance and structural composite engineering
  • 5 axis CNC trimming
  • Warehousing and JIT deliveries

Injection Molding

  • 2 locations, ISO 9001
  • 80-1,000 Ton machines
  • Design assistance available utilizing the latest in CAD/CAM
  • Experience running all the resin families including high temperature and engineered grade resins
  • Warehousing and JIT deliveries
  • Short run/prototype tooling
  • Short run production (10-10,000 pcs)


  • ISO 9001
  • Large structure parts with variation in wall thickness
  • Material and insert encapsulation
  • Fast tool times with multiple materials passing flame requirements and shielding
  • Parts painted and value added assembly
  • In-house tooling
  • FR formulations and sheilding


  • Boards, bars, angles and solid rod
  • Gar-Dur brand
  • 4.2 million molecular weight minimum
  • Custom profile extrusions and CNC fabrications
  • Stock sizes available


  • Full service prototype and low volumn production
  • ISO 9001
  • SLA, SLS, FDM, Clip, Polyjet, CNC machining and cast urethane
  • Quick turnaround for quotes and parts

Other Processes

  • Plastic extrusion
  • Blow molding
  • Structural form
  • Rotational molding
  • Plastic machining
  • Plastic fabrication


Learn how Custom Molded Plastics can help you. Contact us today, we look forward to working with you.


Wittmann & Associates, Inc. DBA Custom Molded Plastics
155 E. Capitol Drive
Suite 6C
Hartland, WI 53029

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