Technical Support & Advanced Composites Teams

Composites One is uniquely equipped with regional technical support managers to help manufacturers with their technical needs, whether it be new process execution or new product specs. We also have dedicated teams of specialists like the Advanced Composites Team to help manufactures sort through todays advanced materials like prepreg and out-of-autoclave solutions.

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The Nation’s Leading Composites Distributor

Personal, reliable service is our number one goal. With a nationwide network of over 44 local distribution centers, exceptional local service and support are always nearby so customers can consistently rely on on-time deliveries and accurate orders from Composites One. And, our value-added business support can't be found anywhere else. With services like process and applications audits, compliance and regulatory support, customized packaging, and productivity and financial services support, Composites One customers know that we are partnering with them to help make their businesses even more successful.

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Polyester/Vinyl Ester Resins

Polyester/Vinyl Ester Resins are used in: Construction, Consumer Recreation, Industrial / Corrosion, Infrastructure, Marble / Solid Surface, Marine, Transportation

Polyester and vinyl ester resins are the most commonly used matrix resins to create composite parts.

Polyester resins, also known as Unsaturated Polyester Resins (UPR), combined with fiberglass reinforcements have been the building blocks of the composites industry for decades. These formulations provide low cost, ease of handling, quick cure, and high strength to create a wide variety of composite parts in countless applications. They are ideal for open molding as well as closed molding processes such as vacuum infusion processing, resin transfer molding, filament winding, compression molding and pultrusion. Polyester resin is also the primary resin matrix used in compression molding, bulk molding compounds (BMC) and sheet molding compounds (SMC), and in the pultrusion process.

There are a wide variety of polyester resin formulations available for specific applications. These include:

Ortohphthalic (Ortho) based general purpose resin
Isophthalic (Iso) based resin with higher heat distortion and improved corrosion resistance
Dicyclopentadiene (DCPD) based resin for low shrinkage and improved cosmetics
Specialty resins for fire performance, food service, or specific corrosion resistance

Vinyl ester resins (VE) are a polyester backbone molecule with an epoxy component. Vinyl ester formulations provide enhanced corrosion resistance and have a wide range of available strength, heat distortion, and shrinkage characteristics.