DATA SHEETS PRODUCT EXPLORER CONTACT Home Markets Products Company Resources Media Contact Us Newsletter Sign Up 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. Bulk Molding Compounds OverviewWhy BMCs?Material FormatsResources Product Explorer Molding Ideas into Reality Designers turn to Toray’s chopped fiber thermoset bulk molding compounds to create complex composite assemblies quicker, less expensively, and with higher performance ratings. Additionally, replacing metallic assemblies with lightweight chopped fiber compression molded BMC parts can reduce weight by more than 40% over aluminum parts. 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. Material Formats With a significantly lower density than metals, advanced composite bulk molding compounds offer tensile strengths similar to aluminum. This allows for the fabrication of lighter weight components that can replace metal parts. Bulk molding compounds offer a number of advantages over metals, including: Bulk Molding 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. 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. Explore Our Products Product Explorer Search and compare our products using the Toray Advanced Composites product explorer. Filter Tg, cure temperature, resin, and technology to find the ideal product for your program needs. READ MORE Data Sheets Already know what you want? Navigate to our library for all the details on that product. Data sheets can be viewed online, downloaded, or added to your info basket. READ MORE Resources Access our online resources, including calculators, processing guides, whitepapers, technical articles and more. READ MORE Resources Advanced Composite Selector Guide Download PDF Toray billet stock summary Download PDF Toray Compression Molding Design Guide—Long Chopped Fiber Molded Parts Request print copy MORE DOWNLOADS 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. 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