Company Overview
MasterMold is a certified ISO 9001:2008 manufacturer of compression molded reinforced fiberglass composites including pre-form, sheet molding compound and bulk molding compound, with secondary operations in fabrication, assembly and Class A finished painting. Comprehensive capacity to meet any need, strengthened by a commitment to quality.

Strictly from the standpoint of physical capacity, MasterMold LLC stands among the premier plastic composite molders in the US. • Three plants with 500,000 square feet under roof • 35 presses with extensive size and tonnage capacities up to 4000 tons• A staff of 500, providing a complete range of prototyping molding, assembly and painting services for manufacturing customers worldwide If you go beyond the numbers to talk with MasterMold customers, they will speak of confidence as well as capability. Their assurance comes from MasterMold's team of plastic industry professionals, who use years of combined experience to add quality at every step in the component manufacturing process. This craftsman's touch improves everything from the blueprint to the boxed, ready-to-ship finished product. It is this confidence that has made us the trusted manufacturing partner of premier customers in a wide range of industries.

Johnson Creek, Wisconsin USA: 230,000 sq. ft. capacity The equipment located at Johnson Creek, WI, a 230,000 sq/ft facility, includes: ABB Robot 6 axis, Fanuc Robots - 6 axis, automated Class A paint system with an in-ground conveyor line and a (5) five-stage wash and capability of painting very small to very large parts, (3) three rotary pre-form machines, robotic bonding operations, and 27 compression presses.

Mauston, Wisconsin: 220,000 sq. ft. capacity The equipment located at Mauston, WI, includes: Large compression presses up to 4000 tons, Automated Class A Finish Paint Line with 5 stage washer, in-floor conveyor, Fadal CNC center, ABB robot 6 axis, Fanuc robot 6 axis (gluing)

Watertown, Wisconsin: 20,000 sq. ft. capacity The manufacturing capabilities of plant #1, Watertown, WI, include: hand lay-up/spray-up of fiberglass components in a 20,000 sq/ft facility, with gel coat and chopping booths, and two large diameter lathes for machining integrally molded flange ends on tubular radomes.

Industries Served: • Marine • Agriculture/Construction • Recreational vehicles • Institutional seating • Utility equipment • Waste water treatment • Electrical enclosures • Broadcasting antenna covers & housings • Motocycle
Company Summary
Number of Employees
(920) 699-2740
(920) 699-2713
111 Grell Lane
Johnson Creek, WI