SI PLASTICS, INC.

Southern Indiana Plastics, Inc., is a US plastics injection molding company specializing in custom part manufacturing. We work with a wide variety of thermoplastic polymers including different propylene, nylon and polycarbonate materials. Please check out our resins and plastics list page to see a complete list.


SIP, Inc. was established in 1999. We operate a clean injection molding facility utilizing a Total Preventive Maintenance program which decreases down time and concurrently increases production load limits. We are on the foundations of on-time delivery, competitive pricing and high quality parts. We maintain constant communication with our customers and stakeholders throughout the entire injection molding process. We had a 100% on-time parts delivery record in 2015.


SIP, Inc. is more than just a reliable injection molding operation with a record of excellence, we have industry experience and expertise across multiple verticals including the automo... [Details]