Baoding Sinhai Sunboard Manufacturing Co., Ltd.'s anti-scratch polycarbonate sheet has a siloxane-based or UV-cured hard layer with a 100% virgin Bayer or Sabic PC core. The hard coat provides a surface hardness of 2H–3H (pencil scale) and the PC core provides an impact strength of 850 J/m. Standard PC and acrylic alone cannot offer the same combination of scratch resistance and shatter resistance. Transmittance is 85%–90% (ASTM D1003) and the sheet can be used from −40 °C to +120 °C.
Standard polycarbonate is commonly used for its impact strength, although the surface is rather soft and scratches easily from everyday cleaning, ambient grit and repeated contact. Surface abrasion causes gradual deterioration of optical quality and service life.
This problem is solved with anti-scratch polycarbonate sheet by using a siloxane-based or UV-cured hard coating on one or both surfaces. The coating increases pencil hardness from sub-HB on untreated PC to 2H–3H, and also enhances resilience to typical industrial cleansers, alcohols and petroleum-based solvents that would craze or cloud an uncoated surface.
| Parameter | Value |
|---|---|
| Product Form | Solid single-layer smooth sheet |
| Thickness | 0.95–23 mm (common: 1.5 / 2 / 3 / 4 / 6 / 8 / 10 / 12 mm) |
| Max Effective Width | 2,100 mm (1220 / 1560 / 1830 / 2100 mm standard) |
| Length | Cut to order |
| Resin | 100% virgin Bayer / Sabic polycarbonate |
| UV Co-extrusion Layer | 50 µm (blocks UV below 380 nm) |
| Anti-UV Rate | 98%–100% |
| Surface Hardness (Pencil) | ≥ HB standard; 2H–3H with hard coat |
| Light Transmission | 85%–90% (ASTM D1003) |
| Impact Strength | 850 J/m |
| Service Temperature | −40 °C to +120 °C |
| Fire Rating | B1 (GB 8624) / UL 94 V-2 |
| Warranty | 10–20 years |
| Certifications | ISO 9001 / SGS / CE / RoHS |
| Packing | PE protective film + wooden pallet / crate |
4 standard tests are done in each batch of production. Here are the results you will be getting with your order documentation.
Taber Abrasion (ASTM D1044) Delta haze growth is still less than 4% after 100 cycles with CS-10F wheels at 500 g load, which means the surface is optically clear despite repeated cleaning.
Cross-Hatch Adhesion (ASTM D3359) - The coating is scored and tape-pulled to demonstrate that it will not delaminate under mechanical stress or thermal cycling.
Pencil Hardness (ASTM D3363): All batches are qualified at ≥ 2H and premium hard coat grades are qualified at 3H.
Accelerated Weathering (ASTM G154): The UV stabilised coating is evaluated for yellowing and embrittlement resistance, which is important for installations in outdoor and semi-outdoor environments.
Also optical distortion analysis is carried out to ensure that the coating process has not introduced any visual aberrations, which is important for safety glazing and display applications where sight line clarity is a need.
On the pencil scale , standard acrylic is harder than untreated PC . But it is brittle upon impact . Standard PC handles impact well, but scratches readily. This hard coat sheet is at the intersection: Pencil Hardness 2H-3H Impact Strength 850 J/m.
For applications that require both scratch and shatter resistance, such as machine guards, public glazing and transit panels, the combination is worth considering over alternatives that provide only one of the properties.
Machine Guards and Industrial Equipment
Guards in CNC machining facilities are exposed to grit, oil mist and metal particles. The 2H–3H hard coat keeps the surface pristine, giving operators an unimpeded line of sight over a shift.
Touch Panels and Display Covers
Hundreds of finger interactions and cleaning cycles are endured each day by retail kiosks, museum cases and touch screen coverings. The display won’t end up blurry as time goes on, with less than 4% delta haze after 100 abrasion cycles.
Public Transit and Architectural Glass
Bus windows, train partitions and airport interiors are doomed to frequent mechanical cleaning and touch with passengers. The hard coat retains optical clarity under high traffic circumstances and the PC core absorbs impact.
Other Uses of
Anti-scratch polycarbonate sheet is used for signage, toilet stalls, sound walls, daylighting strips, interior decorative panels, and protection shields. The thickness range of 0.95–23 mm encompasses everything from light-weight canopy glazing to heavy-duty safety barriers.
We accept OEM and ODM orders at Sinhai. You have the following options for each order:
Note: Cold bending The hard coating increases the surface tension. To minimise crazing of the coating, the bending radius should be limited to a minimum of 300 times the sheet thickness.
Baoding Sinhai Sunboard Manufacturing Co.,Ltd is a manufacturer of polycarbonate sheets, owns 3 production bases, 25 production lines and an annual output of over 60,000 tonnes. Factory area 50,000+ m² for over 30 years.
Sinhai collaborated in the formulation of Chinese National Standard for Polycarbonate Sheets (published September 2024, effective April 2025). The company has ISO 9001, CE, RoHS and SGS certifications and ships with a guarantee certificate of 10-20 years depending on product grade.
For Central Asian buyers, Sinhai has local warehouses in Tashkent and Dushanbe to receive orders and then send them through the Kashgar production site. We can handle sea, truck and air freight, and can assist you with customs clearance in-house.
Q1: Is the sheet cold-bendable on site?
A: Yes, but the minimum bending radius of the hard coating is 300 times the thickness of the sheet. If you remain below this limit the coating will not crack or craze during installation.
Q2: What type of cleaning will protect the hard coat ?
A: With a soft cloth and a little light soap and water. Do not use very alkaline cleaners and harsh scourers which can damage the covering surface even on a coated sheet.
Q3: Does the hard coat effect the fire rating?
A: No. It retains its UL 94 V-2 rating and B1 certification according to GB 8624, thus is still suitable for public buildings and business interiors.
Q4. What is possible in terms of customisation and how long does it take?
A: You can choose the thickness, width, length, colour and UV layer thickness. Custom colours 15-20 days. 7-15 days for standard order. Reach out to us to discuss rush timelines.
Q5: Does the order include certification documents?
A: Yes. Certificates of ISO 9001, SGS, CE and RoHS can be supplied on request and a warranty certificate is sent with the product.
Do you have more questions about anti-scratch polycarbonate sheet? Request samples, technical data sheets, or a project quote by emailing [email protected].
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