Sky Advanced Materials FAQ

Sky can process approximately 700 tons of fiber annually.

Sky employs more than 50 people.

This information is confidential and cannot be disclosed.

This information is confidential and cannot be disclosed.

Sky is owned by Kamal Al-Rawi and Sky Composites AG.

Yes, but carbon fiber is classified as a dual-use material, and export licenses may be required depending on the destination and material properties.

These are products that can be used for both civilian and military applications. Carbon fiber is regulated under EU export control laws.

It depends on:

• The technical specifications (e.g. tensile strength, modulus)
• The destination country
• The intended use and end-user

We evaluate every case individually and will inform you if a license is required.

Export license applications typically take 6 to 8 weeks, depending on national authorities.

We may request:

• An End-Use Statement
• End-User contact details

In certain cases, very small samples (e.g. less than A5 size) may be exempt, provided they fall below specific EU threshold limits. This will be confirmed case-by-case.

Yes, we will notify you immediately and guide you through the next steps.

Countries subject to EU sanctions or restrictions, such as Russia, Iran, China, and others, are more likely to require export approval.

The process is handled internally by Sky Advanced Materials Ltd. Contact persons: Nikoletta Fejes and Gábor Szabó.

We ship samples via express couriers (DHL, UPS, FedEx), including tracking and all required export documentation.

Sky measures:

• Areal weight in g/m²
• Fabric width
• Thickness, when required

• For fabrics above 200 gsm: ±5%
• For fabrics below 200 gsm: ±10%

No. Due to variability in raw materials, a minimum of 5% is the lowest achievable tolerance.

Yes. Defects are marked, and a defect list is available upon customer request.

• Gaps < 3 mm: Not considered defects
• Gaps 3–5 mm: Considered defects; maximum 5 allowed per roll
• Gaps > 5 mm: Not acceptable; material will be rejected

Trikot stitch is a type of zigzag stitching pattern used to bond layers of fabric together. It offers flexibility and is especially beneficial for applications requiring high drapability.

Trikot stitch is mainly used in parts with complex geometries, where high drapability is essential to conform to the mold without wrinkling or fiber distortion.

Yes, Trikot stitching can be applied to various fabric types. However, it is important to consider the end-use application when selecting this stitching method to ensure optimal performance.

No, Pillar stitch is not suitable for 0°/90° fabrics. This type of stitching may compromise the fabric’s stability and structure in such orientations.

Yes, glass scrim can be added between layers. It provides additional stability and can help with dimensional control during processing.

Sky offers fabrics stitched with Pillar stitch. To improve stability in the 0° direction and minimize shrinkage during prepreg production, glass scrim or glass yarns can be added in the 0° direction.

It is a tow of carbon fiber with 50,000 filaments. Each filament is 7 microns diameter.

The 50K tow is made from a textile-based precursor using low-cost raw materials. The carbonization process for 50K is more cost-effective compared to the processes used for 12K or 24K tows, making it an economical choice for many industrial applications.

Yes, visits are welcome. However:

• Production area visits are strictly forbidden without prior management approval.
• If access is granted, no photos or sketches are allowed.
• Visitors must sign a Non-Disclosure Agreement (NDA) in accordance with Hungarian law.

Yes, Sky is certified according to ISO 9001 for its quality management system.

Yes, Sky holds a DNV certification for all fabrics made from 50K PX35 carbon fiber, applicable to both epoxy and vinylester resin systems.

No, Sky does not hold aerospace certifications and is currently not planning to obtain them.

Yes, Sky can provide mechanical properties. We have IMA test results available; however, the full test report can only be shared under a Non-Disclosure Agreement (NDA).

Yes, Sky uses two types of NDA agreements, depending on the scope and nature of the collaboration.

The Quality Manager is Ivett Kontyos, and he can be contacted at quality@skyadvanced.com.

Please send clear photos of the issue along with the roll number. Any additional details (e.g. defect location, description, quantity affected) are helpful for our investigation. Send all information to: quality@sky-advanced.com

Our standard roll widths are typically 1.27 meters or 2.54 meters, with roll lengths ranging from 50 to 100 meters, depending on the fabric type. Custom lengths are available upon request. For fabrics with an areal weight above 600 g/m², we do not recommend 100-meter rolls due to the heavy weight and difficulty in handling.

Widths can also be customized based on customer demand. However, it's essential that the requested width aligns with our machine dimensions to minimize waste. If the requested width results in excess material, the customer will be required to cover the cost of the unused portion.
Example: If a customer requests a width of 72 cm, and the machine width is 127 cm: 127 cm ÷ 72 cm = approx. 1.76 rolls. This leaves 55 cm of excess fabric, which the customer must purchase as well.

Roll weight varies depending on the areal weight and roll length. Typical roll weights range from 10 to 100 kg.
Formula: Roll length (m) × Roll width (m) × Areal weight (g/m²) ÷ 1000 = Weight (kg)

Each roll is:

• Wrapped in protective plastic film
• Placed in a heavy-duty cardboard box
• Secured with foam or cushioning to prevent movement during transit

The lowest weight is 100gsm and the maximum weight is 1500gsm.

It depends on the fabric type:

• For 400gsm rolls: 200 rolls
• For 600gsm: about 140 rolls

• For 50 m rolls (100–600 g/m²): 130 cm (L) × 20 cm (W) × 20 cm (H)
• For 100 m rolls (100–200 g/m²): 130 cm (L) × 20 cm (W) × 20 cm (H)
• For 100 m rolls (300–600 g/m²): 135 cm (L) × 30 cm (W) × 30 cm (H)
• For 50 m rolls (600–1000 g/m²): 135 cm (L) × 30 cm (W) × 30 cm (H)

Over 1000 gr or 100 m we have special box sizes.

Up to 30 boxes can be loaded on a pallet, depending on box dimensions and roll specifications.

Standard pallet size:

• 100x140 cm and 130x140 cm
• Total height with boxes: approx. 140–170 cm

No we do not use. We use our own pallet with dimension of 100x140 cm and 130x140 cm so that boxes fit on them and 2 size of pallets fills the truck width to make shipping economic.

The maximum weight of pallets are 600 and 900 kg. A fully loaded pallet with 30 rolls of 400 gr/50 m weighs 900 kg.

Yes, each box is labeled with: Product code, Roll number, Orientation, gauge and areal weight, Gross weight, length and width, and Handling instructions. Each pallet includes a packing list and, upon request, a certificate of conformity.

Yes. The COA includes all the measurement of the produced fabrics.

Yes but mainly from the biaxial 400gsm and bidiagonal 400gsm.

Sky’s standard payment terms are 30 or 45 days, depending on the agreement.

For first-time buyers, advance payment is required to establish a credit history. In some cases, 30-day terms may be approved by Sky's management upon request.

Sky works with a factoring bank that can assess the financial status of new clients before proceeding with orders.

Sky’s standard commercial terms are EXW (Ex Works) - Fót, Hungary.

Yes, Sky has official General Terms and Conditions (GT). They can be downloaded directly from the Sky website: www.sky-advanced.com

Shipping one roll within Europe generally costs between €35–€50, depending on the destination and courier.

Outside of Europe, shipping costs range between €100–€260, based on location, speed, and customs conditions.

Yes, special rates may be offered for regular customers, distributors, or large orders. Please contact our logistics team for a tailored quote.

Pallet shipping within Europe typically ranges from €150–€300, depending on weight, destination, time and and freight provider.

International pallet shipments start at approximately €500, and can exceed €1,200, depending on the destination and delivery terms.

No, shipping is calculated separately unless otherwise agreed (e.g. DDP, CIF terms).

Yes, customers may provide their preferred courier or shipping account details.

No, import duties, taxes, and VAT are not included unless shipping is arranged under DAP or FCA terms.

Yes, all shipments include tracking numbers and estimated delivery times.

Yes. We offer material samples up to 5 m² free of charge for the material cost. This helps customers evaluate quality and suitability before placing a full order.

Customers are responsible for the shipping fees. However, if you place an order after receiving the sample, the shipping cost will be deducted from your first invoice.

For samples exceeding 5 m², customers must pay for both material and shipping costs. If you proceed with an order, the full sample cost (material + shipping) will be credited on your first invoice.

All sample requests must be submitted in writing and are subject to review and approval based on availability and suitability.

Lead times vary depending on stock levels and destination. We recommend providing accurate shipping details to avoid delays.

Yes. We reserve the right to limit quantity or frequency of sample requests to ensure fair distribution and efficient handling.

Yes. Carbon fiber is classified as a dual-use material.

• For samples larger than A5 size, export approval is mandatory.
• Export approval is NOT required for shipments to: EU member states, USA, Canada, Japan, Norway, Switzerland, Liechtenstein.
• For all other countries, export approval is required.

Our policy ensures transparency, fairness, and cost-effectiveness while helping customers make informed decisions. We aim to build long-term relationships through quality and excellent service.