12K 300g Unidirectional Carbon Fiber Fabric

With 18 years of experience in R&D, weaving, and engineering support services for carbon fiber composites, JUN TENG operates its own standardized dust-free production workshops and independent mechanical testing laboratories. Our 12K 300g unidirectional carbon fiber fabric serves as a core material for the heavy-load reinforcement of high-load buildings and municipal bridges. Production strictly adheres to two mandatory national standards: Code for Design of Strengthening Concrete Structure (GB50367-2013) and Technical Code for Safety Appraisal of Reinforcement Materials for Engineering Structures (GB50728-2011).

Every batch undergoes three internal quality checks—covering areal weight, thickness, and tensile strength—before being sent to a third-party national-level testing agency for verification. Shipments include comprehensive test reports, factory certificates of conformity, and product warranties; this complete documentation package is ready for immediate use in supervision inspections and project filings. All mechanical parameters are based on actual measurements and publicly disclosed, eliminating common market issues such as inflated strength ratings, the use of recycled waste fibers, or substandard areal weights. It is a compliant, primary material frequently procured by design institutes, large-scale reinforcement contractors, and municipal infrastructure agencies.

Detailed Explanation of Raw Material Weaving Process

"12K" indicates that each carbon fiber tow consists of 12,000 brand-new T700-grade PAN-based carbon filaments, with absolutely no recycled carbon materials used in the process. "300g" refers to the product's standard areal density (weight per square meter); compared to 200g carbon fabric, this offers a 50% increase in carbon fiber content and significantly higher tensile load-bearing capacity per unit width, allowing a single layer to meet most heavy-load reinforcement requirements.

The 12K 300g Unidirectional Carbon Fiber Fabric utilizes a pure unidirectional weaving process; over 95% of the fibers are concentrated along the longitudinal load-bearing axis, while the transverse direction uses only ultra-fine hot-melt yarn for light stabilization, ensuring tensile performance remains uncompromised. Produced in a fully automated, constant-temperature, enclosed environment, the fabric avoids defects such as broken filaments, fuzzing, uneven thickness, and fiber misalignment. The finished product is flexible and flat, with tightly bound edges that resist fraying, allowing for a snug fit on beams, columns, curved bridge piers, and tunnel walls.

Comparison Table of Mechanical Property Standards

What are the core product advantages?

1. High load-bearing capacity; reduces costs associated with multi-layer application

The tensile load-bearing capacity of the 300g carbon fabric far exceeds that of standard 200g models. For projects requiring significant load capacity increases—such as adding stories to industrial plants, reinforcing heavy equipment bases, or strengthening long-span bridges—a single layer meets requirements. This eliminates the need for multi-layer application, resulting in substantial savings on labor and construction time.

2. Lightweight and thin; adds no significant additional load to the structure

Carbon fiber has a density only one-quarter that of ordinary steel, and the total thickness after bonding is less than 3mm. It does not increase beam or column cross-sections or reduce interior headroom. It serves as a perfect alternative to heavy reinforcement methods like steel plate bonding or section enlargement, avoiding the risk of exceeding structural load limits.

3. Long-lasting corrosion resistance; suitable for harsh environments

Carbon fibers are inherently rust-proof and resistant to salt spray, acids, and alkalis, making the fabric suitable for long-term use in coastal bridges, sewage treatment tanks, chemical plants, and underground utility tunnels. When paired with the matching impregnating adhesive to form a composite protective layer, the reinforcement system offers a design service life of up to 50 years with no subsequent maintenance costs for corrosion protection.

4. Convenient installation; adaptable to complex, irregular structural elements

The material is soft and pliable, allowing it to conform tightly—without voids or air pockets—to beam and column corners, arched piers, and curved tunnel surfaces. Installation requires no heavy machinery or hot cutting and generates minimal dust and noise; a single worker can independently complete the entire process, including substrate preparation, adhesive mixing, and fabric application. 5. Eco-friendly and Safe: Worry-Free Inspection Across All Scenarios

The 12K 300g Unidirectional Carbon Fiber Fabric is formaldehyde-free, low-VOC, and flame-retardant compliant. It is suitable for high-traffic areas such as residences, schools, hospitals, and large shopping malls. It comes with complete certification documentation, ensuring a high pass rate during inspections by supervisors and housing/construction authorities.

Standard Engineering Application Scenarios

1. Industrial Buildings: Factory girders, heavy-load floor slabs, load-bearing upgrades for large equipment foundations, and seismic retrofitting during factory renovations;

2. Municipal Transportation: Reinforcement to enhance the load-bearing capacity of highway bridges, urban pedestrian overpasses, tunnel box girders, and bridge piers;

3. Specialized Anti-Corrosion Projects: Repair of coastal wharves, sewage storage tanks, chemical storage tanks, and underground structures;

4. Large-Scale Civil Renovations: Adding floors to shopping malls, underground parking garages, and seismic reinforcement of load-bearing beams and columns in high-rise buildings.

Manufacturer Supply Model and Value-Added Services

As the direct manufacturer, JUN TENG offers flexible supply terms to meet diverse customer needs:

1. Bulk Wholesale: Standard 100-meter rolls are kept in stock; volume purchases qualify for tiered pricing, and long-term clients can sign annual supply agreements to lock in preferential rates;

2. Small-Scale Retail: Orders ranging from a few meters to several dozen meters are supported; repair shops and small-scale personal renovation projects can place orders without mandatory minimum order quantities;

3. Personalized Customization: Custom widths, lengths, and packaging labels are available upon request to suit non-standard or specialized reinforcement projects. Comprehensive technical support: Free sample delivery, provision of complete digital test reports, and standardized reinforcement application plans. We supply a fully compatible system of impregnation adhesives, primers, and leveling/repair putties; this material synergy prevents issues like debonding or delamination often caused by mixing incompatible brands. We offer hands-on, in-person professional training courses where senior structural engineers provide step-by-step instruction on the entire process—from substrate preparation and adhesive mixing to carbon fiber application, void detection, and final inspection—enabling even absolute beginners to independently undertake reinforcement projects. Dedicated technical engineers are available 24/7 to answer questions and resolve on-site application issues in real-time.

Why Choose Us?

JUN TENG has specialized in the carbon fiber reinforcement industry for 18 years, possessing full manufacturing qualifications and an independent testing laboratory. We professionally supply 12K 300g Unidirectional Carbon Fiber Fabric to over 3,000 reinforcement companies, construction firms, and design institutes nationwide, having successfully completed tens of thousands of projects involving building reinforcement, bridge strengthening, and specialized anti-corrosion reinforcement. We transparently publish all measured mechanical data and never exaggerate product performance; we welcome random sampling and third-party testing by clients—if measured metrics fall below the National Standard Grade I requirements, we offer unconditional returns or exchanges and cover all testing costs. Our entire process—from raw material procurement and weaving to finished product testing—is fully traceable, resulting in a stable repurchase rate of over 95% among long-term clients.