Your Reinforcement Fiberglass Supplier in the US

Johns Manville provides a wide range of fiberglass reinforcement solutions to improve the performance of thermoplastic and thermoset composites. 

MultiStar® Multi-End Roving, available now also in North America, is crafted to enhance fiberglass distribution, wetting, and bonding and significantly reduce fuzz. This roving is optimized explicitly for various applications, including SMC Class A composite materials, the production of long-fiber reinforced PU panels, thermoset weaving applications, LFI (PU) headliner production, GMT, and spray-up processes.

StarRov® Single-End Roving is well-suited for various fabric processes, including LFT or D-LFT processes, UD tapes, pultrusion, weaving, and filament winding. It offers a range of benefits, such as exceptional mechanical properties, low VOC, excellent bundle opening, rapid impregnation, perfect wet-out, high dry strength, and minimal fuzz for an enhanced experience.

ThermoFlow® Chopped Strand is precisely engineered to excel in various applications and processes, notably in thermoplastic reinforcement. JM chopped strand is known for its excellent strand integrity, clean feeding, and consistent fiber distribution.

Strands

 

 

Multistar_400x250

 

MultiStar® 272 is an assembled roving manufactured with continuous glass fibers of defined diameter into a cylindrical roving package compatible with unsaturated polyester. It offers best in class performances in terms of surface aspect (Top Class A) with outstanding strength performances, enabling SMC compounders and moulders to further compete effectively with other materials.

 

 

Meet our team

 

Looking for more information about our products and services? Our team of experts is ready to help you find the right solution for your applications. Click the yellow button below to schedule a call.

Jillian Gill

 

"I've been in the fiberglass industry for 27 years and my expertise is in thermoplastic chopped strands. My aim is to understand each customer's long term goals so that we can develop a unique approach to meet your individual needs."

Jillian Gill, Key Account Manager

 

 

 

Mike Walsh


"I look forward to getting in touch with you and finding the right solution for your needs. My focus is on wet chopped fiberglass for gypsum boards as well as thermoplastics."

 

Mike Walsh, Key Account Manager
 

 

 

Made in USA
Made in USA

 

 

 

JM 2023 Sustainability Report

 

"By innovating and implementing solutions with integrity and accountability, we are confident that JM and our customers will be successful and that we will fulfill our vision of Building a Better Tomorrow.” 

Scott Coons | VP R&D, Chief Sustainability Officer

 

JM's 2023 Sustainability Report highlights our commitment to sustainability and corporate social responsibility. It reflects our dedication to stakeholders and the environment, and shows progress towards our sustainability goals. This report, covering 2021-2023, is the first to include both GRI and SASB standards, providing greater insight into our sustainability efforts.

 

 

Assembled Roving
Direct Roving

 

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Contact us for detailed product information and support