Johns Manville CAREERS CONTACT CUSTOMER LOGIN INSULATION SYSTEMS COMMERCIAL ROOFING ENGINEERED PRODUCTS HOME FIBERS Chopped Strands ThermoFlow® and StarStran® chopped strands reinforce thermoplastic and thermoset resins. Chop-Pak® wet dispersible chopped strands perform in glass nonwoven mats. DuraCore® chop strands are your reliable source for gypsum wallboards. Filter Products By RESOURCES Safety Library - SUI Fibers Brochure Product Brochure CONTACT AN EXPERT THERMOPLASTICS GUIDE OTHER PROCESSES GUIDE PRODUCTS Chopped Strands Direct Rovings Assembled Rovings Your process technology = view sheets PA (Polyamides) Chopped Strands optimized for use in PA6, PA66 and PPA used in automitive. JM... more Learn More PP, PE (Polyolefins) Chopped Strands optimized for use in PP with excellent flow and feeding... more Learn More PBT, PET (Polyesters) Chopped Strands optimized for use in PBT/PET with excellent flow and feeding... more Learn More High Heat (PPS, PPA, ...) Chopped Strands optimized for use in demanding high heat engineered... more Learn More Wet dispersible Chop-Pak® chopped strands are your reliable glass fibers source for your nonwoven mats. Learn More PP (Long-Fibers) StarStran® long-fibers used in LFT processes with consistent performance... more Learn More BMC StarStran® chopped strands used in Bulk Moulding Compounds and mainly used in... more Learn More Phenolics StarStran® chopped strands used in high performance phenolic resins systems used... more Learn More Gypsum DuraCore® chopped strands are your reliable glass fibers source for your... more Learn More TOP INSULATION SYSTEMS Building Insulation Industrial Insulation HVAC Insulation Mechanical Insulation OEM Insulation COMMERCIAL ROOFING Products Service Groups Resources ENGINEERED PRODUCTS Fibers Nonwovens CAREERS WHO WE ARE Innovation Sustainability History & Heritage Core Values JM Locations Media Center For Our Suppliers For Our Customers CONTACT MSDS/SDS Search Partner Locator © 2018 Johns Manville. A Berkshire Hathaway Company Privacy Policy Legal Cookie Policy California Transparency in Supply Chains Act COOKIES ON JM.COM The Johns Manville website employs cookies to improve your user experience. We have updated our cookie policy to reflect changes in the law on cookies and tracking technologies used on websites. If you continue on this website, you will be providing your consent to our use of cookies. COOKIE POLICY I accept cookies from this site