Bulk Molding Compounds
Toray’s suite of chopped fiber bulk molding compounds (BMCs) allow designers to create complex composite parts easily and efficiently. Toray BMCs are engineered for the success of your satellite, aerospace, and high performance applications.
Molding Ideas into Reality
Designers turn to Toray’s chopped fiber thermoplastic bulk molding compounds to create complex composite assemblies utilizing aerospace grade thermoplastics such as PEEK, PPS, PEKK, and PAEK.
Replacing metallic assemblies with lightweight chopped fiber compression molded BMC parts can reduce weight by more than 40% over aluminum parts, with the added benefit of solvent and fire resistance. Additionally, thermoplastic BMCs can be molded to shape in short 10–15 minute thermoforming cycles and can carry exceptional structural loads exceeding those of traditional metals.
To help ensure your success, Toray, through our wholly owned subsidiary CCS Composites, provides turnkey design and fabrication services including tool design, part optimization, prototyping, and full aerospace-grade part fabrication. Our Toray Compression Molded Parts Library provides the details you need to get started and succeed.
Simplify your part fabrication hurdles and expand your horizons with Toray BMCs.
Why Choose Chopped Fiber Bulk Molding Compounds?
When you seek a composite to replace metal, but a part is too complicated to fabricate with traditional composite sheets or tapes, bulk molding compounds provide the solution. BMCs offer a number of advantages over metals.
Lightweight
BMC parts are 40% lighter than aluminum with higher tensile strengths, and are infinitely less complex to fabricate than continuous fiber composites.
High Strength
BMCs are fabricated into complex parts through compression molding. Compression molded assemblies can be tailored with integrated ribs and stiffeners to carry structural loads often exceeding the load-bearing capacity of metals.
Corrosion Resistance
Toray's bulk molding compounds are resistant to solvents and corrosion. Matrices include epoxy and thermoplastic resins like PEEK, PEKK, PEI, and PPS.Resources
Advanced Composite Selector Guide
Toray billet stock summary
Toray Compression Molding Design Guide—Long Chopped Fiber Molded Parts
Explore Our Products
Material Formats
Chopped Fiber Bulk Molding Compound
Chopped fiber bulk molding compound is provided primarily in chopped fiber form; however, fibers may be standard or intermediate modulus and fiber length may vary from 0.5, 1.0, to 2.0 inches in length. Common width of the flake is 1/8 inch, although 1/16 inch width can be accommodated on request. Common thermoplastic matrices include PEKK, PEEK, PPS, and PEI. Other thermoplastic resin types may be available upon request. Common packaging formats are 5 lb. bags.
Bulk Molded Parts
Toray has full fabrication capabilities to produce aerospace-grade compression molded parts. Toray can help optimize the part, design and build the tooling, and then fabricate the part.
MS-4H
MS-4H is carbon fiber / epoxy resin compression molding system using high strength, standard modulus (HS) carbon fiber. MS-4H is an excellent low cost, high performance BMC and processes very well in medium to large heavy parts.