Mol-Son LLC is a premier tight tolerance plastic injection mold builder located in Mattawan, Michigan.
Plastic Injection
Mold Builders
Our specialty and strength is in the automotive industry, building tooling for electrical connections, power distribution systems, and harness routing retention aids and shields.
We provide all the services needed to get projects through the problem-solving stage. This includes mold flow and warp analysis to aid in tool design and tool manufacturing for successful first shots.
Our Capabilities
From design to finishing, we offer full-service support under one roof.
Our History
Mol-Son was founded in 1984 by Ron Molitor and Max Sonnevil. From the start, our vision has been designing and building precision injection molds with a commitment to quality and community. Mol-Son started small but has grown to an over 30,000 square feet climate-controlled facility dedicated to mold making, technology, and full-service mold maintenance. We take great pride in our apprenticeship program and commitment to the mold making industry. Through the years, our molds have served the automotive, medical, and aerospace industries.
Interested in Becoming Part of Our Team?
ISO 9001 Certified
Our team proudly maintains ISO 9001:2015 certification which guarantees accuracy and quality for tooling production through a strong foundation of knowledge and a strict adherence to excellence. Operating at a higher standard promises a better product.
ISO Quality Policy Statement
Mol-Son LLC is dedicated to customer satisfaction and continuous improvement in the areas of cost, quality, and delivery throughout all of our engineering and manufacturing activities.