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 in excess of $2 billion and holds leadership positions in all of the key markets that it serves. JM employs approximately 7,000 people and operates 40 manufacturing facilities in North America, Europe and China. Additional information can be found at www.jm.com.
Direct rovings for LFT
Johns Manville’s glass fibers are developed with and for our customers in automotive market. JM offers excellent performance direct roving for LFT, direct LFT and IMC applications.
Roving 473A is manufactured by direct winding of continuous glass fibers of defined diameter into a cylindrical roving package. This roving is designed for reinforcement of polypropylene polymers in LFT processes.
Benefits:
- Easy to unwind
- Low fuzz generation during processing
- Outstanding processing behavior in LFT process
- Excellent mechanical properties
- Superior flexural and impact strength
Roving 474 is manufactured by direct winding of continuous glass fibers of defined diameter into a cylindrical roving package. This roving is designed for reinforcement of polypropylene polymers in LFT and direct LFT processes.
Benefits:
- Easy to unwind
- Low fuzz generation during processing
- Outstanding processing behavior in D-LFT process
- Excellent mechanical tensile strength an dflexural strength in PP
- Good impact strength in PP
- Superior aestehtic part appearance
Roving 858 is manufactured by directly winding continuous glass fibers of defined diameter into a cylindrical roving package. Roving 858 is designed for reinforcement of Nylon polymers in LFT processes.
Benefits:
- Easy to unwind
- Low fuzz generation during processing
- Outstanding processing behavior in LFT process
- Excellent mechanical tensile strength and flexural strength in Nylon
- Good impact strength in PA
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