Fiberglass Woven Roving Combo Mat Overview

Setting the industry benchmark for multi-layer composite reinforcement, POLYMER's premium fiberglass woven roving combo mat is a highly sophisticated structural fabric. As a leading stitched fiberglass combo mat manufacturer, we meticulously engineer this material by mechanically stitching a layer of high-tensile woven roving together with a uniform layer of dispersed chopped strands, creating a robust, unified reinforcement solution.

This entirely binder-free fiberglass combination mat utilizes polyester stitching yarn rather than chemical adhesives. This unique construction guarantees extremely rapid resin wet-out, minimizes void formation, and ensures seamless compatibility with UP, VE, Epoxy, and Phenolic resin systems. By combining bidirectional strength with isotropic stiffness, it dramatically streamlines lay-up workflows for heavy-duty marine hulls, continuous pultrusion profiles, and automated RTM (Resin Transfer Molding) applications.

Empowering Advanced Composite Fabrication

Whether you are hand-laying massive oceanic vessels or pulling continuous architectural profiles, our engineered combo mats drastically reduce your labor time and boost structural integrity:

• For Marine & Boat Fabricators: Leverage our woven roving combo mat for boat hulls. By laying two reinforcement layers (woven + chopped) in a single pass, you cut manual lay-up time in half while creating an ultra-thick, impact-resistant laminate.

• For Continuous Pultrusion Lines: Utilize our combo mat for pultrusion profiles. The mechanical stitching prevents the chopped strands from washing away under high-shear resin injection, ensuring flawless, high-strength structural beams and grating.

• For Closed Mold (RTM) Operations: Deploy our highly conformable RTM process fiberglass combo mat. The binder-free structure allows for incredibly fast resin flow through the mold cavity, preventing dry spots in complex automotive housings and wind turbine components.

• For Regional Raw Material Distributors: Source directly from a verified bulk fiberglass combo mat roll supplier. We offer custom weight ratios (e.g., the standard EMK600/300), customizable slit widths, and highly competitive factory-direct pricing.

Core Performance Advantages

Binder-Free Construction

Mechanically stitched without chemical binders. This prevents binder-resin incompatibility, resulting in a cleaner laminate and significantly faster wet-out speeds.

Rapid Thickness Build-Up

Combines two distinct reinforcement layers into one. Laying down a single combo mat instantly achieves massive thickness, cutting manual labor time by up to 50%.

Synergistic Strength

The woven roving provides extreme bidirectional (0°/90°) tensile strength, while the chopped strand layer adds isotropic stiffness and a resin-rich bonding surface.

Superior Wash Resistance

The dense polyester stitching firmly locks the chopped fibers to the woven roving, preventing fiber wash-out during high-pressure RTM injection or pultrusion.

General Data & Technical Specifications

* Remark: Other weight combinations, custom roll widths, and ECR-Glass variants are available to order upon specific customer request.

Typical Industrial Applications

Marine Boat Hulls

Woven roving combo mat for boat hulls ensuring massive thickness build-up and impact resistance in a single lay-up.

Pultrusion Profiles

Combo mat for pultrusion profiles delivering incredible longitudinal stiffness for continuous I-beams and grating.

Automotive Housings

Fiberglass combo mat for auto housings utilized in RTM processes to rapidly mold high-strength vehicle panels.

Cooling Apparatus

Heavy-duty binder-free mats ensuring long-term structural integrity and weather resistance for industrial cooling towers.

Frequently Asked Questions (FAQ)

Instructions for Roll Handling & Storage

Custom Roll Widths: Custom widths are available from 200mm to 3200mm to precisely meet your specific closed-mold or continuous pultrusion requirements, entirely eliminating costly edge-trim waste.

Packing & Palletizing: The heavy-duty combo mat is securely rolled onto a firm paper tube to prevent distortion of the stitched structure. It is tightly wrapped with moisture-proof plastic film and packed into cartons, ready for safe horizontal pallet loading.

Storage Conditions: Store indoors in a cool, dry, and water-proof area. Ideal room temperature is 15°C to 35°C with 35% to 65% humidity. Keep the combo mat in its original sealed packaging until use to prevent moisture ingress and maintain rapid wet-out capabilities.