Master Plastics is a premier custom molder that specializes in engineered plastics and prides itself as a “low cost producer”. We are located in Vacaville California, 45 minutes north east of San Francisco and 30 minutes west of Sacramento.

The company offers a full range of plastics injection molding services from its 22 injections molding presses with smallest precision parts (28 Ton) to large complex parts (1000Ton).

Masters Plastic enjoys significant diversification through servicing several end markets and specializes in servicing these markets: industrial, construction, information technology, medical packaging, and consumer goods. The growth of the company can be attributed to its successful niche market strategies.

Master Plastics offers following advantage:

  • Injection molding
  • Structural foam molding
  • Gas counter pressure
  • Prototype
  •  ISO 9001:2015 Certified (Certificate No: 1101328)
  • US & offshore Tooling
  • Advanced MRP and real-time production monitoring system
  • In –house assembly
  • Class 100,000 Clean room facility

Major Markets We Serve

Information Technology
Industrial Construction


Value Added Services
Engineering Services
Quality Assurance
Tooling Services


Master Plastics’ 64,000 square foot facility is located in Vacaville, California. As part of our commitment to our customers, Master Plastics has invested in state-of-the art production and tooling equipment and an innovative highly skilled engineering team.