WT Fiberglass | Professional Fiberglass Reinforcement Manufacturer

Who We Are

Zhejiang Weitong Composite Material Co., Ltd. has been engaged in the research, development, and production of fiberglass reinforcement for over 10 years. Our factory is located in Tongxiang City, Zhejiang Province — strategically positioned near the largest glass fiber manufacturing hub in China and close to Shanghai Port.

We are committed to delivering high-performance composite materials that meet the evolving needs of industries such as shipbuilding, automotive, and wind power. With a strong focus on innovation, quality, and customer service, we have built a reputation as a trusted partner in fiberglass reinforcement solutions.

10+ Years of Industry Experience
Proximity to Shanghai Port for Fast Global Shipping
Dedicated R&D and Customization Capabilities

Our Products

Empowering Precision, Defining Efficiency

Fiberglass Core Mat

A high-performance material with a synthetic non-woven core sandwiched between layers of chopped glass fibers or multiaxial fabrics. Ensures uniform thickness and enhanced mechanical strength.

Fiberglass Multiaxial Fabrics

Multi-axis, multi-layered reinforcement with customizable layer count, orientation, and fiber content. Stitched with polyester yarn for improved integrity and handling.

Fiberglass Stitched Mat

Made of randomly dispersed chopped fiberglass strands stitched together with polyester yarn. Offers excellent dimensional stability and resin compatibility.

Surface Veil Stitched Combo Mat

Combines a surface veil (fiberglass or polyester) with chopped roving or multiaxial layers. Provides a smooth finish and high mechanical performance.

Fiberglass Woven Roving Combo Mat

Woven roving stitched with chopped glass fibers via polyester yarn—no chemical binder. Delivers excellent strength and uniform resin flow.

Fiberglass Woven Roving

Made from E-glass direct roving in plain or twill weave. Ideal for FRP boats, tanks, panels, and structural composites requiring high mechanical strength.

Fiberglass Chopped Strand Mat (CSM)

Randomly distributed chopped E-glass fibers bonded with powder or emulsion binder. Offers uniform reinforcement and superior resin compatibility.

Fiberglass Direct Roving (EWR)

High-quality E-glass roving compatible with unsaturated polyester, vinyl ester, epoxy, and phenolic resins. Used in pultrusion, filament winding, and RTM.

Fiberglass Assembled Roving

Designed for chopped strand mat, spray-up, and continuous panel production. Compatible with unsaturated polyester and vinyl ester resins.

Closed Mold Mat CF

High-performance reinforcement with synthetic core and chopped glass layers. Ensures good resin flow and enhanced mechanical strength for closed molding.

Flow Medium LTNM

Sandwich-structured material with synthetic core and chopped fiberglass. Ideal for RTM, vacuum infusion, and injection molding processes.

Unidirectional UDTM

Fibers aligned in a single direction for maximum tensile strength. Ideal for structural components requiring high directional load-bearing capacity.

Industry Solutions

Tailored Fiberglass Reinforcement for Critical Applications

Shipbuilding

Our fiberglass reinforcements are used in hull structures to enhance resistance to wind and waves. Ideal for FRP boats, yachts, and marine panels.

Automotive

Lightweight, high-strength composites for body panels, structural parts, and interior components. Enhances fuel efficiency and durability.

Wind Power

High-performance reinforcements for wind turbine blades. Designed for fatigue resistance, durability, and optimal aerodynamic performance.

Why Choose WT Fiberglass?

Global Reach, Local Expertise in Fiberglass Manufacturing

Quality

We prioritize quality and honesty to ensure every batch meets high standards.

Customization

We design custom lamination schemes based on client specifications and application needs.

R & D

Our dedicated team innovates in glass fiber processing and high-tech composite development.

Service

We train our engineers regularly and deliver quality products with responsive support.

Supply

Located near Shanghai Port and the largest glass fiber hub, ensuring stable and fast supply.

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Professional Fiberglass Reinforcement Manufacturer