Premix-Hadlock Composites, LLC manufactures custom fiberglass- and carbon-fiber-reinforced thermoset products, drawing on more than 60 years of industry experience. The company provides molding and related engineering support from product development through production, and operates two advanced molding facilities in Ohio.
ISO 9001:2015
IATF 16949:2016
BSCI (Business Social Compliance Initiative)
Compliance program
SMETA (Sedex Members Ethical Trade Audit)
Compliance program
OneCert organic certification standards
Haysite Reinforced PlasticsFounded in Erie in 1954, Haysite Reinforced Plastics formulates and processes thermoset fiberglass composites for demanding insulation, corrosion-resistant and lightweight structural applications. Its 103,000-square-foot operation combines in-house material formulation, custom molding and pultrusion with a testing laboratory that can validate every product it makes. Now a member of the Isovolta Group, Haysite serves power, transportation and industrial customers in 30 countries.ERIE, PA
Superior Huntingdon CompositesBorn from the 2016 consolidation of Superior Composites and Huntingdon Fiberglass Products, Superior Huntingdon Composites makes glass-fiber continuous filament mat and surfacing veil materials for composite manufacturers. Its Pennsylvania facility—known as the birthplace of continuous filament mat—has produced fiberglass reinforcements for more than 70 years, while the company’s Kentucky and Pennsylvania operations now serve customers around the world. With more than 575,000 square feet of manufacturing footprint, Superior Huntingdon can also tailor materials to individual production requirements and offers recycled-content mats and veils.HUNTINGDON, PA
Advanced Composite Products, IncFounded in 1983 by racer Kerry Hitt, Harrisburg’s Advanced Composite Products fabricates custom composite parts entirely in-house, from design and prototyping through production. Its 35,000-square-foot facility serves demanding projects ranging from race-car bodywork to aircraft and government components, including parts for Johns Hopkins Applied Physics Laboratory’s Dragonfly drone destined for Titan. ACP’s racing roots remain visible in its wind-tunnel-tested race bodies and parts, shaped by Hitt’s experience as a driver and composite manufacturer.HARRISBURG, PA
Cuyahoga PlasticsFounded in 1960, Cuyahoga Plastics is a Northeast Ohio manufacturer that compounds thermoset materials and molds them into engineered parts for customers worldwide. Its two facilities combine material production with molding, an arrangement that includes a 52-press plant and lets the company carry projects from early ideas through tooling and final production.MENTOR, OH