ARRIS 300x400 Carbon Fiber Sheet 1.5mm - Lightweight High Strength

In this review of the ARRIS 300x400 carbon fiber sheet, the bottom line is simple: this is a real, versatile carbon fiber panel for builders and hobbyists who need high strength with low weight. The reviewer found the material to be 100% real carbon fiber with a clean finish and predictable behavior when cutting and shaping. If you want a durable, high-performance plate for RC, automotive trim, or small structural parts, this sheet stands out for its stiffness and ease of use while offering multiple thickness and finish options.

Key Features

• 100% real carbon fiber: The pure carbon construction provides superior stiffness and strength compared with mixed or filled panels, making it a reliable base for structural parts.
• Multiple thicknesses: Available from 0.5mm up to 6mm, the variety lets you choose the right balance of flexibility and rigidity for drones, mounts, or cosmetic panels.
• Plain glossy and twill matt finishes: Two finish options allow for either a polished look for visible surfaces or a subdued matte look for functional components.
• Easy to cut and machine: The sheet cuts cleanly with saws or a water jet and machines without producing crumbly edges, which simplifies DIY and CNC work.
• Lightweight performance: ARRIS 3K fiber provides high tensile strength at a fraction of steel weight, useful for weight-sensitive builds like RC aircraft and car parts.
• Wide application range: Suitable for aerospace models, automotive trim, electronics backing plates and CNC projects where a thin, strong panel is needed.

Who It's For

This ARRIS carbon fiber sheet is best for hobbyists, RC pilots, fabricators, and automotive DIYers who need a lightweight, stiff material that is straightforward to cut and finish. Builders of drones, scale modelers, and those making instrument panels or dash fillers will appreciate the strength-to-weight advantage and the available finishes.

Those who should look elsewhere include users who need pre-drilled, finished parts or fully painted components straight out of the box; this product is a raw sheet intended for cutting and fabrication. If you require flexible composites with added layers or alternative fiber weaves beyond 3K, consider a different specialized laminate.

Pros & Cons

Pros

• High real carbon content gives excellent stiffness and strength for structural use.
• Multiple thickness and size options suit a wide range of projects and loads.
• Clean finishes and easy cutting reduce post-processing effort on CNC or saw cuts.
• Lightweight compared with steel, helping reduce overall system mass.

Cons

• Scratch resistance is mixed; a protective plastic layer helps but finished surfaces can still be vulnerable without extra care.
• As a raw panel, it requires cutting and finishing, so it is not plug-and-play for users wanting ready-made components.

Specifications

Brand	ARRIS
Material	100% real 3K carbon fiber
Available sizes	300x300mm, 300x400mm, 400x500mm (other sizes available)
Available thickness	0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 6mm
Finishes	Plain glossy and twill matt
Typical uses	RC models, drones, automotive panels, CNC parts, backplates
Return policy	60-day return policy

Our Verdict

The ARRIS 300x400 carbon fiber sheet is a practical, good-value choice for makers who need a true carbon fiber plate that balances stiffness, low weight and clean finishes. It excels where cutting, machining and a range of thickness choices matter, making it a smart buy for RC, automotive trim and small structural projects; buyers who need finished parts or extra scratch resistance should plan for post-processing.

Frequently Asked Questions

Is this sheet real carbon fiber?
Yes, the product is described as 100% real 3K carbon fiber without filler layers.

Can I cut this with a hobby saw or CNC machine?
Yes, customers report it cuts cleanly with saws and machine tools and works well with water jet or CNC routing when appropriate tooling is used.

What sizes and thicknesses are available?
The product is offered in 300x300, 300x400, 400x500 and other sizes, with thicknesses from 0.5mm up to 6mm and finish options in plain glossy or twill matt.