Johns Manville Introduces New Roving for SMC, Panel and LF-PU

Johns Manville (JM), a market-leading manufacturer of glass fiber products, today announced the introduction of new multi-end roving for SMC (Sheet Moulding Compound).

  • MultiStar® 264 roving is designed to increase mechanical performance in multi-purpose polyester resins while improving run-out and glass distribution for a variety of applications in the transportation, electrical and building industries.
  • MultiStar® 566 roving is designed for excellent resin translucency in panel components used in the building industry.
  • MultiStar® 576 is designed for high-speed processing in polyurethane reinforcement systems.

The MultiStar® roving support JM customers in a variety of process technologies, such as SMC, spray-up, GMT, pipe fabrication, panel molding, PU-reinforcements and gypsum boards.

“Our continuous investment in product innovation is based on more than 45 years of expertise and highlights our commitment to this market segment,” said Brian Sapp, Global Fibers Business Director for JM Engineered Products. “These new products give added strength to JM’s large family of glass roving used for thermoset applications.” 

About Johns Manville 
Johns Manville, a Berkshire Hathaway company (NYSE: BRK.A, BRK.B), is a leading manufacturer and marketer of premium-quality products for building insulation, mechanical insulation, commercial roofing, and roof insulation, as well as fibers and nonwovens for commercial, industrial and residential applications. JM serves markets that include aerospace, automotive and transportation, air handling, appliance, HVAC, pipe and equipment, filtration, waterproofing, building, flooring, interiors and wind energy. In business since 1858, the Denver-based company has annual sales of approximately $2.6 billion and holds leadership positions in all of the key markets that it serves.  JM employs approximately 7,000 people and operates 44 manufacturing facilities in North America, Europe and China.  Additional information can be found at