IDI Composites International

Custom compounding, formulating of thermoset molding materials. Unsaturated polyester, vinyl ester and epoxy bulk molding compounds (BMC) and sheet molding compounds (SMC) and trademarked Structural Thermoset Composites (STC).

407 South 7th Street
Noblesville, IN 46060 US

Additional Locations:
Unit One, Oldbury Park Popes Lane
Oldbury, West Midlands, B69 4RG GB
44 121 552 0038

Road #3, KM 151.8
Aguirre, 00704 PR
787- 853-2186

Jupiter 11, Nueva Industrial Vallejo Delegacion Gustavo A. Madero
Ciudad de Mexico, ME 07700 MX
52 55 4169 4012

126 Rue Laennec, Zone Industrielle CS 97202
Vineuil, 41354 FR
33 (0) 254 5555 54

Jinbai Road No. 918 Jinshan Industrial Park
Shanghai, 201506 CN
86 21 5727 7688


A Message from IDI Composites International

IDI Composites International World Headquarters

IDI Composites International (IDI) is the premier global custom formulator and manufacturer of thermoset molding compounds for molders and OEMs.

The IDI 3i Composites Technology Center

The 3i Composites Technology Center is the research and development division of IDI Composites International.

IDI Introduces Fortium™ and Ultrium™

IDI Composites International and The IDI 3i Technology Center have expanded their line of Structural Thermoset Composites STC®. Fortium™, high percentage glass fiber composites and Ultrium™ carbon fiber based composites were developed to address the performance gap that exists between dense metals and more costly advanced composites to give molders and OEM’s a new material option to consider when designing products that require high strength, but where weight and cost are a consideration.

As Seen In CompositesWorld

IDI Composites expands tank farm at North American headquarters
The company expanded capacity for its resin materials tank farm to meet industry needs for its molding compounds and composite materials.

IDI composite designed for EV battery enclosures
IDI Composites International is introducing a new sheet molding compound (SMC) for the electric vehicle market.

IDI International launches material solution for EV battery covers
IDI Composites International is introducing FLAMEVEX, a new family of fiber reinforcements and resins designed specifically for the manufacture of battery enclosure systems.

CAMX 2018 preview: IDI Composites International
IDI Composites International (Noblesville, IN, US) is featuring its customized polyester/vinyl ester-based bulk molding compounds (BMC), sheet molding compounds (SMC), and an advanced line of Structural Thermoset Composites (STC - Ultra Performance Moldable Composites) that are manufactured in both sheet and bulk formats.

IDI Composites composite fan

CAMX 2017 preview: IDI Composites
IDI Composites International (Noblesville, IN, US) is showcasing innovations from its Structural Thermoset Composites (STC) line of molding compounds.

Dale Brosius

Small companies, long-term impact
In a time known for owner “exit strategies,” longevity in family-owned composites businesses is heartening.

CAMX 2014 show report
Bigger, better and more inclusive than any previous U.S. composites trade event, the inaugural show turns North American eyes forward to the future.


Composites ride and support the rails
Increased ridership and heavier axle loads on rail systems around the world signal a potential boon for composites. 

Product Categories of IDI Composites International

  • Compounds
    • Bulk molding (BMC)
    • Low-pressure molding
    • Sheet molding (SMC)
    • Other compounds