Direct Roving for Structural Thermoplastics

Direct roving - also called single-end roving – for structural thermoplastics is used to produce?tapes,?woven?and?non-crimp (NCF)?fiberglass fabric. During the fiberglass production the direct roving is treated with a special sizing to ensure compatibility with resins such as PP,?PA?or High-Heat polymers. Tapes are mainly used in winding, tape-laying or cross-ply consolidation processes, while different?fabric?types are?typically used?for organosheet production.

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Dany de Kock
Global Business Development Leader

"StarRov? is a single-end roving (direct roving) ideal for thermoplastics. It is perfect for?fabric?processes as it provides a wide and uniform strand width which allows to produce a superior fabric without gaps. StarRov? 490 is the material of choice?for PP,?StarRov??895 for PA and?StarRov??853 for High-Heat polymers."

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What is a single-end roving (direct roving)?

A direct roving or single-end roving is manufactured by winding fiberglass directly into a clearly defined tex or yield. It is designed to be used mainly as an input for weaving processes, providing easy unwinding due to even tension, low fuzz generation and excellent wettability. It can be utilized in different process technologies, such as pultrusion or filament winding. The end-use composites applications can be found in infrastructure, building, marine, sport & leisure, and water transportation.


Frantisek Sabo
Global Innovation Manager

"Did you know?that Johns Manville is capable of testing physical and mechanical properties as we are fully equipped with a magnitude of state-of-the-art laboratory testing devices. We can assist you in developing the product with the properties you desire."


Fiberglass Product Selection
GMP Certification

Tim Swales
Chief Sustainability Officer

"Our new development for single-end roving (direct roving) is dedicated to bio-based film-formers which are a substantial part of the fiberglass sizing recipes. Bio-based film-formers can decrease the carbon footprint of the supply chain."

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