50+ FAQ About Carbon Fiber Products

Length & Width: The standard size is 400x400mm, 500x400mm, 500x500mm, 600x500mm etc, any other sizes can be customized according to your requirement, the maximum size is 6000x2000mm

Thickness: 0.2-60mm are available.

Yes, the FREE sample can be provided for testing in standard sizes. However, the nominal sample cost will be charged if customs sizes, and these costs will be refunded when you place the bulk order.

3K is the most common use, any other grade also available, like 1K, 1.5K, 6K, 12K etc.

You can also find the detailed information in our knowledge page: Carbon Fiber K Grades Explained

We offer both wet carbon and dry carbon (pre-preg) materials. But we recommend dry carbon to get a better performance, like thinner thickness, higher strength, and and helps to avoid pinholes.

You can learn more about from our knowledge page: What is Wet Carbon and Dry Carbon?

Sinofibre specialist offer 4 kinds of surface for your different demands.

• Matte
• Semi-Matte
• Glossy
• Mirror

We use high-quality epoxy resin systems to get a very good performance carbon fiber sheets. Just contact us to get the current testing report.

The standard formula is 68% carbon fiber + 32% epoxy resin, however, the formula can be customized according to your requirement.

Our carbon fiber sheets are suitable for various industries including Automotive, FAV, Drone, Aerospace, Marine, Sports equipment, Fishing rods, etc. Just let us know your purpose and we will suggest an ideal grade based on our experience.

We are factory and we have stock for any standard size of the carbon fiber sheets, so the MOQ is 1pc.

The size also can be customized for free if not too complicate.

The price is depends on the Size, Thickness and Grade, just let us know the dimension and purpose, we will analyzed the price for you in 30 minutes.

Yes, Any size within our size range can be customized. The Free Cut-to-Size service also available if it’s not too small.

It depends on the size and quantity. Standard sizes are often in stock and can be delivered in 5-7days, while custom orders may require additional production time.

Yes, the Anti-UV blue color protective film will always applied to prevent damage during shipping and handling. The thickness and the colors of this film can be customized based on your needs.

Yes, just send us the specific drawing of the parts that you need, we will analyze the price and make the mold for you.

Yes, we have 24 CNC router and lathe, and the biggest one is 4000x2000mm, which can meet all the sizes of the sheets, just send us .dwg, .dxf or .step format and other information, or check the details in our Carbon Fiber CNC Parts page.

Yes, our standard lay-up method for carbon fiber sheets uses layers oriented at 0/90 degrees (Quasi-isotropic) or 0/90/-45/+45 degrees (Cross-plied quasi-isotropic lay-up).

However, the direction also can be customized according to your requirement except for our standard below to achieve better strength, i.e.: 0/90/15/30/45/60/75/-75/-60/-45/-30/-15/90/0

Sinofibre’s carbon fiber sheets can be cut by a normal circular saw easily, but for the more suitable and precise parts, better machine the sheets on a CNC router. We can also help to fabricate it to the parts if other precise parts, you just need to pay very little process cost.

We made 2 primary reasons for this:

1. The premium raw materials are expensive, such as Carbon fiber filament, Epoxy resin.
2. Unlike other manufacturing processes, the production of carbon fiber sheets are mainly process by skilled composite technician, and there is no machine that can replace the manual lay up the carbon fiber so far.

It depends on your applications. Actually the resin we used is UV resistant, so the extra anti-UV paint is not so necessary.

However, varnish can be painted on the surface if you want a more glossy surface.

But, we have the Mirror surface for your selection, which is much more glossy than the standard, the price is a little more expensive, but it’s definitely much cheaper than the varnish process, and more eco-friendly.

Yes. Many of our clients in the furniture industry attach or press carbon fiber sheets to MDF. In these cases, we roughen the back side to increase the contact area, making it easier to glue.

Certainly. We offer 5 methods to display your logo on the surface:

1. UV printing
2. Screen printing
3. Enamel paint
4. Laser engraving
5. CNC engraving

Sure, the datasheets of carbon fiber filament, epoxy resin, carbon fiber sheets, all the raw material testing report can be provided.

Sinofibre provide premier carbon fiber tubes in multiple shapes that include:

1. Circular carbon fiber tube
2. Square carbon fiber tube
3. Rectangle carbon fiber tube
4. Tapered carbon fiber tubes

Square carbon fiber tube: Maximum 300x280x6000mm

Circular carbon fiber tube: Maximum OD300xID280x6000mm

Maximum length: 12000mm (40ft)

Any sizes can be customized that smaller than the maximum length and size

Yes, the FREE sample can be provided for testing in standard sizes. However, the nominal sample cost will be charged if customs sizes, and these costs will be refunded when you place the bulk order.

Certainly. We offer 5 methods to display your logo on the surface:

1. UV printing
2. Screen printing
3. Enamel paint
4. Laser engraving
5. CNC engraving

We offer both pultrusion tubes and roll wrapped tubes. But generally roll wrapped tubes would be preferred as it’s made up from several piles of prepreg carbon fiber, and the orientations can be adjusted to reach the the property that you required. And strength and durability the roll wrapped tube is going to be more versatile.

However, the roll wrapped tube also has disadvantage, that is mandrel dictates the maximum length that it can be made, unlike pultrusion tubes that can be made infinitely long.

3K is the most common use for carbon fiber circular tubes and square tubes, any other grades also available, like 1K, 1.5K, 6K, 12K etc.

Common weave patterns include:

• Plain (1×1)
• Twill (2×2)
• Satin (1×4, 1×5)
• Unidirectional

We specialist offer 4 kinds of surface for your different demands.

• Matte
• Semi-Matte
• Glossy
• Mirror

We use high-quality epoxy resin systems. Just contact us to get the current testing report.

The standard formula is 68% carbon fiber + 32% epoxy resin, but can vary based on the specific product and application.

Our carbon fiber rods are suitable for various industries including Automotive, FAV, Drone, Aerospace, Marine, Sports equipment, Fishing rods, etc. Just let us know your purpose and we will suggest an ideal grade based on our experience.

We are factory and we have stock for some standard size of the carbon fiber rods, so the MOQ is 1pc.

The price is depends on the Diameter, Size, Thickness and Grade, just let us know the dimension and purpose, we will analyzed the price for you in 30 minutes.

Yes, any size within our size range can be customized. Just let us know the size and we will check if we have the mold. Otherwise very little mold cost will be charged.

It depends on the size and quantity. Standard sizes are often in stock and can be delivered in 5-7days, while custom orders may require additional production time.

Yes, the slightly bigger PE protective bag will always applied to prevent damage during shipping and handling. The thickness and the colors of this film can be customized based on your needs.

Sure, just send us the specific drawing of the parts that you need, we will analyze the price and make the mold for you.

Yes, we have 24 CNC router and 3 5-axis lathe, which can meet all the sizes and shapes of the tube, please send us .dwg, .dxf or .step format and other information, or check the details in our Carbon Fiber CNC Parts page.

Yes, it can be unidirectional or quasi-isotropic, the most popular layup method are:

3K + 90° UD

3K + 45° UD + 90° UD

3K + 45° UD + 90° UD + 3K

Our carbon fiber tubes can be cut by a normal circular saw easily, but for the more suitable and precise parts. Better machine the sheets on a CNc lathe.

We made 2 primary reasons for this:

1. The premium raw materials are expensive, such as Carbon fiber filament, Epoxy resin.
2. Unlike other manufacturing processes, the production of carbon fiber rods are mainly rolled by skilled composite technicians, and there is no machine that can replace the manual roll the carbon fiber prepreg so far.

It depends on your applications. Actually the resin we used is UV resistant, so the extra anti-UV paint is not so necessary.

However, varnish can be painted on the surface if you want a more glossy surface.

But, we have the Mirror surface for your selection, which is much more glossy than the standard, the price is a little more expensive, but it’s definitely much cheaper than the varnish process, and more eco friendly.

Sure, the datasheets of carbon fiber filament, epoxy resin, carbon fiber sheets, all the raw material testing report can be provided.

Our biggest CNC router is 4000x2000mm, so any size below this size is available, just send us the drawing and we analyze the price for you within 30 minutes.

Most of machining process that we can do, such as

1. Milling
2. Cutting
3. Threading
4. Tapping
5. Drilling
6. Counter-Sinking
7. Counter-Boring
8. Slotting
9. Deburring
10. Trimming
11. Chamfer
12. Polishing

The price depends on the processing complexity. The machining is more difficult, the costs are higher, because the precision and labor involved increased .

We can also make molds of other shapes according to your size.

Yes, the FREE sample can be provided for testing in standard sizes if the size is not big, and the processing is not so difficult . However, the nominal sample cost will be charged for the big size, and these costs will be refunded when you place the bulk order.

Due to carbon fiber sheets has high wear resistance and hardness, we are using corn milling cutter for milling, drill and trimming.

If you don’t have CNC machine, the normal circular saw and electrical drilling also available.

We are factory and we have 24 CNC router for any size of the carbon fiber CNC sheets, so no matter the quantity of your order, the MOQ is 1pc.

Yes, the UV resistance blue protective film will always applied to prevent damage or scratch during shipping and handling. The thickness and the colors of this film can be customized based on your needs.

3K is the most common use for carbon fiber CNC parts, any other grade also available, like 1K, 1.5K, 6K, 12K etc.

The thickness range of our carbon fiber sheets is 0.2-60mm, any thickness can be machined in this range.

Common weave patterns include:

• Plain (1×1)
• Twill (2×2)
• Satin (1×4, 1×5)
• Unidirectional

We specialist offer 4 kinds of surface for your different demands.

• Matte
• Semi-Matte
• Glossy
• Mirror

It depends on the processing complexity and quantity. We have 24 CNC router, so most of them can be finished within 15 days, it can be shorter if your order is urgent.

Yes, because the carbon fiber CNC parts are made of the sheets, the sheets has been already layup by unidirectional or quasi-isotropic, the most popular layup method are:

3K + 90° UD

3K + 45° UD + 90° UD

3K + 45° UD + 90° UD + 3K

Sure, the datasheets of carbon fiber filament, epoxy resin, carbon fiber sheets, all the raw material testing report can be provided. And the testing report will be provided for each batch.

Certainly. We offer 5 methods to display your logo on the surface:

1. UV printing
2. Screen printing
3. Enamel paint
4. Laser engraving
5. CNC engraving