Johns Manville Certified GMP for Articles Used for Food Contact in Europe

Johns Manville (JM), a market-leading manufacturer of Continuous Filament Glass Fiber (CFGF) and a Berkshire Hathaway company, announced today its plant in Slovakia received GMP (Good Manufacturing Practice) certification in compliance with the provision of Regulation (EC) No 2023/2006 for the fabrication of CFGF that is intended to be used in contact with food in engineered thermoplastic applications according to EU regulation 10/2011 (plastics regulation). The certification was granted by the certification body TÜV SÜD Slovakia, s.r.o., a member of the TÜV SÜD Group, the world leader in providing of inspection and certification services with long-term experience.

This certification is the first to be granted to a European CFGF manufacturer and demonstrates JM’s excellent manufacturing practice. JM has developed a broad range of performance CFGF grades for various engineered thermoplastics intended to come into contact with food, including ThermoFlow® 674 chopped strands designed for PA and high-heat polymer reinforcements; ThermoFlow® 636 and StarRov® 490 for PP; and ThermoFlow® 601 for PBT/PET.

"Our quality department in Slovakia is proud to achieve this success with the operational team and is committed to providing quality products for demanding applications to our customers,'' said Karin Demez, Global Marketing and Portfolio Leader in Engineered Products – Global Fibers.

ThermoFlow® 601, ThermoFlow® 636 and ThermoFlow® 674, when used for PBT, PP and PA reinforcement, also passed the French drinking water test. For further information or to obtain the Declaration of Compliance, please contact JM at

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 $3 billion and holds leadership positions in all of the key markets that it serves. JM employs approximately 7,000 people and operates 43 manufacturing facilities in North America, Europe and China. Additional information can be found at

Philippe Bekaert, Johns Manville +32 479 980 677