High Strength Carbon Fiber Sheet

• Customization: Available
• Shape: Carbon Fiber Plate
• Raw Materials: Polyacrylonitrile-Based Carbon Fiber
• Model NO.: CFRP-Sheet-01
• Performance: High-Strength Type
• State: High Strength Carbon Fiber Sheet
• Mechanical Property: High-Performance Type
• Transport Package: Carton and Pallet
• Specification: 250x250mm, 250x500mm, 900x500mm or customized
• Trademark: LK
• Origin: Shandong, China
• HS Code: 6815120000
• Production Capacity: 10000m2/Month
• Package Size: 40.00cm * 40.00cm * 110.00cm
• Package Gross Weight: 10.000kg

Product Description

1.Product Description
Carbon fiber sheet manufactured using 100% high strength carbon fiber reinforcement cured under pressure and temperature to produce a high-performance sheet suitable for fully structural applications whilst also having a class-A (cosmetic) finish on one side.

The visible surface of the sheet uses a 'visual quality' 2/2 twill, 3k woven carbon fiber fabric and has a high-gloss finish. The reverse side of the sheet is finished with a flat but textured 'peel-ply' finish suitable for secondary bonding.

Immediately after curing and before cutting or stocking the sheets are coated in a high-quality protective film on their cosmetic side to ensure they remain in pristine condition. 
 

2.Technical Data Sheet
Weight and Dimensions

Length	250	mm
Width	225	mm
Weight kg/m2	1.28	kg/m2
Length/Width Tolerance	+- 2.5	mm

Cured Mechanical Properties

Tensile Strength at 0/90°	503	MPa
Tensile Strength at 45°	557	MPa
Elongation at Break at 0/90°	2.27	%
Elongation at Break at 45°	3.13	%
Youngs Modulus 0/90° Gloss Side in Compression	32.4	GPa
Youngs Modulus 0/90° Gloss Side in Tension	31.6	GPa
Density	1152	kg/m³
Glass Transition Temperature	80	°C
Tensile Modulus at 45°	32.3	GPa
Tensile Modulus at 0/90°	37.2	GPa

Fabric Specification

Fiber Orientation

Quasi Isotropic

Mechanical Properties

Tg Onset (DMA)

80

°C

General Properties

Gross Weight

0.08

kg

 
 3.Advantages

• 100% high strength carbon fiber reinforcement throughout
• Pin-hole free high-gloss cosmetic surface
• Flat, textured bonding surface on the reverse
• Wide range of thicknesses and sheet sizes available
• Exceptionally rigid

• Stable dimension and UV resistant
• High Corrosion Resistance
• High Thermal Conductivity in some forms
• Low coefficient of thermal expansion
• Ideal building material for frames, trusses, and for use as reinforcing material.

 

 

4.Typical Uses
 Carbon fiber sheets find applications in various industrial sectors, including robotics, machinery, and equipment manufacturing. They are used to fabricate components that require high strength, low weight, and resistance to environmental factors, such as robot arms, frames, and supports.

• Motorsport / marine / light aircraft
• Engineering / automation
• Displays / exhibitions / shop-fitting
• Cabinets / enclosures / high-end audio
• Further processing into sandwich panels

5.Technical Details

Quasi-Isotropic Layup
To create a more uniform distribution of strength, all our sheets are manufactured using both layers of 0°/90° and 45°/-45° oriented reinforcement in what is known as quasi-isotropic fiber orientation. Carbon fiber sheets using this layup technique offer improved stiffness across their diagonal axis and significantly improved torsional stiffness.

Laminate Composition
The matrix used is a high performance epoxy resin which offers excellent mechanicals, clarity and improved UV stability. The high temperature cure maximises the mechanical strength properties and results in a Tg (glass transition) of 80°C.
To achieve maximum stability and flatness in the sheets, we used 'balanced' laminates for all sheet thicknesses. This means that the fiber type, weight and weave is symmetrical from the front to the back ply.
The detailed layup schedule for each sheet thickness can be seen below:

1mm	2mm	3mm
210g 22 twill  300g +/-45 biax  210g 22 twill	210g 22 twill  300g +/-45 biax  650g 22 twill  300g +/-45 biax  210g 22 twill	210g 22 twill  300g +/-45 biax  650g 22 twill  210g 22 twill  650g 22 twill  300g +/-45 biax  210g 22 twill

Dimensional Tolerance and Sheet Weight
Thickness tolerance and weight for our High Strength Carbon Fiber Sheet varies with thickness, as follows:

Thickness	Thickness & Tolerance	Weight kg/m²
1mm	0.9mm +/-0.2mm	1.28
2mm	1.7mm +/-0.2mm	2.40
3mm	2.8mm +/-0.2mm	4.08

The dimensional tolerance on length and width is + - 2.5mm
How to Cut and Shape
This carbon fiber sheet can easily be cut and finished to a high standard using simple workshop tools. Cutting and finishing carbon fiber can also be perfectly safe if you follow some basic safety precautions.

6.Shipping information

Restrictions

This product is not classed as dangerous goods for transport and can be shipped to all destinations without restriction.

Package Size

There are no package size restrictions or surcharges for this product.

---------- FAQ ----------

01: Do the cut edges need sealing and, if so, what with?
Whether or not cut edges would benefit from sealing really comes down to the application and environment where the sheet will be used, specifically, we're really talking about prolonged or permanent exposure to liquids like water, chemicals, oil etc. In an application where the cut edge of the sheet is going to be regularly or permanently exposed to liquids then it would be beneficial to seal the edge to prevent water ingress which, over enough time, can travel down the fibers and cause delamination.
Based on the above, if edge sealing is deemed advantageous then it's best done using some epoxy resin which should be mixed (according to its accompanying instructions) and either be brushed or smeared on the cut edge, or the cut edge dipped in it. 

02: What weight can sheet take? Could you walk across it if it covered a hole in the floor?
It's not possible to give an exact weight because it would depend on many things (how the sheet is supported, what the span in, how the weight it loaded, whether the sheet is a 'free span' (i.e. not bonded/fixed) or bonded or fixed (so you get a 'drum skin' effect). That said, you could be confident that a sheet slid over a hole such that the sheet is supported on all sides would support the weight of an average person quite easily.

03: Does the 1mm sheet have a little flex to it?
I'd like to bend it round a slight curve. Are the sheets very brittle?
You can certainly flex the 1mm sheet although it's reasonably stiff and so flexing it will require some force and it will always want to 'spring' back so it would need holding in place once curved.
The sheets are not brittle and are suitable for applications where they need to be bend and held in position (to make a curve) or for applications where they will flex as part of the design.

04: I want to bond this carbon fiber sheet to a sheet of magnesium alloy to create a dual material brace. Could you please recommend a suitable glue to use for this process? It is very important that the final product is lightweight while still rigid and as close as possible to perfectly flat.
 It's not clear from your description what size of sheet you're constructing, i.e. whether these are relatively small pieces of bonded material or, potentially, as much as large 2sqm sheets. For smaller bonding operations I would recommend our adhesive; it bonds very well to most alloys and the composite sheet but it has a very short working time of just a few minutes and so is less suitable for larger jobs. In either case, you should prepare the allow by keying it with abrasive and degreasing it with a solvent such as acetone. The adhesive should be thinly spread using a squeegee and the sheets closed together in such a way as to avoid air entrapment. Pressing the sheets during cure or finding some other way to hold them flat will help with the flatness of the finished panel.

05: Does this come with a protective film on the gloss side? And also do you have any sheet that is more of a flat finish instead of gloss?
Yes, this carbon fiber sheet comes with a blue protective film on the gloss side to protect it from scratches during storage and transport. 

06: Could you supply 4x160mm diameter discs with a thickness of 3mm please?
I'm afraid that in most situations (unless you need very large quantities) we are unable to supply our carbon fiber sheet either in a custom size or cut-to-drawing. We have produced tutorials and guidance on how to cut carbon fiber sheet yourself but if that isn't an option for your project then we would suggest contacting a company who could cut the sheet for you such as a waterjet cutter or a CNC machinist. Both of these methods can cut carbon fiber sheet quickly and accurately.

07: Are you sheets UV stable? Will the resin go yellowish if left outside?
Our Single sided sheets are resin infused using our own  epoxy Infusion Resin which although it has a high level of UV resistance, is NOT 100% UV stable. This means over several years of UV exposure outside, the resin will eventually begin to yellow. However, in practice, the layer of resin over the carbon fiber on a resin infused sheet is very thin which means minor UV yellowing is not likely to be visible due to the bolder black colour underneath. If 100% is essential for your application then you can spray the sheet in a PU UV stable lacquer to get the protection you need.