Business Details
50+ Years
experience
Trusted Composite Manufacturing Solutions in Hanover, PA
At McCLARIN Composites, we have pioneered composite material innovation since 1953, evolving from plastics to advanced composites that redefine performance in mobility and the built environment. Our mission centers on driving decarbonization through market-facing strategies, leveraging advanced materials and machine-driven clean technologies. We specialize in producing large, complex composite parts for high-growth sectors, prioritizing cleaner performance, circularity, and cost transformation via automation. Our commitment to sustainability is validated by EcoVadis, and we actively collaborate with industry leaders like ExxonMobil to advance closed-mold processing and high-speed RTM technologies.With three North American facilities, we deliver scalable solutions for mobility segments including buses, trucks, rail, and military applications, as well as infrastructure, energy, and construction. Our team of CCT-certified engineers optimizes designs for manufacturability, ensuring lifecycle efficiency. As a Tier 1 supplier, we integrate cutting-edge platforms like ExxonMobils Proxxima resin system to help clients achieve sustainability goals. Our leadership in the American Composites Manufacturers Association underscores our dedication to industry stewardship, while our focus on open innovation and partnerships positions us at the forefront of the decarbonized economy.
Services
Composite Manufacturing
Thermoset Composites
Reaction Injection Molding
Thermoforming
Assembly & Logistics
Mechanical Testing
Closed-Mold Processing
High-Speed RTM
Material Selection
Sustainability Consulting
Details
- Year established: 1953
Highlights and features
- We offer 70+ years of composite manufacturing expertise since 1953.
- Our closed-mold processing reduces environmental impact while enhancing efficiency.
- We partner with ExxonMobil to deliver breakthrough Proxxima resin technology.
- Our team includes CCT-certified engineers and ACMA board members.
- We maintain three North American facilities for scalable, reliable production.
Associations and certifications
- Ecovadis
- American Composites Manufacturers Association (ACMA)
Services
Composite Manufacturing
We produce high-performance composite components for mobility and infrastructure using advanced thermoset and thermoplastic materials. Our processes include closed-mold and automated systems to ensure precision and sustainability. Clients benefit from reduced weight, durability, and compliance with decarbonization goals.
High-Speed RTM
Our high-speed RTM technology, developed with ExxonMobils Proxxima resin, delivers faster cycle times and lighter parts while maintaining compatibility with existing tooling. This solution supports automotive and aerospace industries seeking low-carbon, high-volume production.
Thermoforming
We offer vacuum thermoforming and rotary sheet feed processes for thermoplastic composites, enabling cost-effective, complex shapes. This service is ideal for transportation and construction sectors requiring scalable, durable components.
Material Selection
Our experts guide clients in choosing optimal composites, including epoxy, phenolic, and polyolefin resins, to balance performance, cost, and environmental impact. This ensures tailored solutions for specific applications.
Sustainability Consulting
We advise on circular economy practices, including end-of-life recycling and low-emission manufacturing. Our EcoVadis-certified processes help clients meet ESG targets while maintaining product quality.
People
Mike Gromacki
President & CEO
With 30+ years in composites and chemicals, Mike leads McCLARINs global strategy. He previously held executive roles at Olin Corporation and Dixie Chemical, driving innovation and sustainability in advanced materials.
Jacob Cartwright
Director of Engineering
Jacob oversees engineering excellence, ensuring manufacturability and lifecycle efficiency. He collaborates with clients to optimize composite designs for performance and sustainability.
Marcy Offner
Sr. Director of Strategic Marketing
Marcy leads marketing initiatives, emphasizing McCLARINs commitment to decarbonization and innovation. She drives brand visibility through industry partnerships and thought leadership.
Questions
What industries does McCLARIN Composites serve?
We specialize in mobility sectors like buses, trucks, rail, and military, as well as built environment applications including infrastructure, energy, and construction.
How does McCLARIN support sustainability?
We use closed-mold processing, recycled materials, and partner with EcoVadis to ensure circularity and reduced carbon footprints across our operations.
What composite technologies does McCLARIN offer?
Our capabilities include high-speed RTM, VARTM, LRTM, RIM, and thermoplastic thermoforming, integrated with advanced resins like ExxonMobil’s Proxxima.
Are McCLARIN’s composites suitable for large-scale production?
Yes, our automated processes and three North American facilities enable scalable, high-volume production for Tier 1 OEMs globally.
