Fibers

We offer engineered glass fibers in chopped strands and rovings to bring value to demanding technical applications. We set the benchmark high for our products, and even higher for our people you can trust.

JM Fibers video

Johns Manville sites and plants for manufacture of glassfiber reinforcement - direct rovings StarRov, assembled rovings MultiStar, chopped strands Thermoflow, StarStran, DuraChop, Chop-Pak.

JM Fibers video

Johns Manville sites and plants for manufacture of glassfiber reinforcement - direct rovings StarRov, assembled rovings MultiStar, chopped strands Thermoflow, StarStran, DuraChop, Chop-Pak.

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Chopped Strands
Our Chopped Strands expand the capabilities of thermoplastics, reinforce gypsum... more
Direct rovings
Our StarRov® rovings are manufactured by winding glass fibers directly into a... more
Assembled rovings
MultiStar® rovings are manufactured by assembling continuous glass fibers... more