Optical & Basic Properties

Item	Parameter/Description	Test Standard	Characteristics
Base Material	High-Purity PVC Resin, Organotin-based Transparent Stabilizers	ASTM D1784	Transparent / Flame Retardant / Good Toughness
Transparency Grade	General Grade (Transmittance ≥86%), Optical Grade (≥90%)	ASTM D1003	Close to acrylic, superior to PS
Haze	≤2% (Optical Grade)	ASTM D1003	High clarity, low cloudiness
Density	1.35 - 1.38 g/cm³	ISO 1183	Slightly lower than standard PVC rigid sheet
Refractive Index	Approx. 1.52 - 1.55	Approx. 1.52 - 1.55	Close to glass
Service Temperature	-10°C ~ +70°C (short-term 85°C)	UL 746B	HDT superior to standard transparent grades

Physical & Mechanical Properties

Parameter	General Transparent Grade	High-Transmission Optical Grade	Test Method
Light Transmittance	≥86%	≥90%	ASTM D1003
Haze	≤4%	≤2%	ASTM D1003
ASTM D1003	≥55 MPa	≥58 MPa	ISO 527
Flexural Strength	≥85 MPa	≥90 MPa	ISO 178
Impact Strength (Notched, 23°C)	≥6 kJ/m²	≥5 kJ/m²	ISO 179
Drop Impact (500g, 1m)	No cracking	No cracking	GB/T 8814
Pencil Hardness	HB - H	HB (can reach 2H after surface treatment)	ASTM D3363

Note: There is a trade-off between transparency and impact strength; high-transmission formulations may have slightly lower impact strength

Functional & Safety Properties

Performance	Flame Retardancy	Chemical Resistance	UV Resistance	Safety Certification
Grade/Result	UL94 V-0, O≥38%	Resistant to acids, alkalis, alcohols; not resistant to ketones, esters, chlorinated hydrocarbons	Unstabilized: Prone to yellowing; UV-stabilized: Outdoor weatherability 3-5 years	RoHS/REACH Compliant
Test Standard	GB/T 2408	ASTM D543	QUV Accelerated Aging (ASTM G154)	—
Key Features	Self-extinguishing, low smoke/toxicity when burning	Cleanable with alcohol; avoid strong solvents	UV stabilizers or surface coatings available	FDA food contact certification available

Specifications

Parameter	Standard Range	Customizable Range / Special Treatment
Thickness	1mm - 15mm	0.5mm - 25mm
Width	1220mm / 1560mm	1000mm - 2050mm
Length	2440mm / 3050mm	Custom rolls (thickness <3mm) or long sheets
Surface Finish	Glossy, Matte (Frosted), Embossed, Anti-glare	Hard Coat (HC), Anti-fingerprint (AF), Anti-fog (AG)
Color	Crystal Clear, Light Blue Tint, Brown Tint	Crystal Clear, Light Blue Tint, Brown Tint

Certifications & Standards

Certification Type	Certification Type	Applicable Field / Requirement
Fire Safety	UL94 V-0 / GB 8624 B1	Building interiors, public transport
Building interiors, public transport	FDA 21 CFR 177.1520 / EU 10/2011	Food display cases, trays
Electrical Equipment	UL 746C (RTI)	Appliance housings, viewing windows
Environmental Requirements	RoHS / REACH / Halogen-Free	Electronics, export markets
Medical Devices	ISO 10993	ISO 10993

Application Reference Table

Application Field	Recommended Type & Specification	Comparison with Alternatives |
Advertising Lightboxes/Sign Panels	UV-stabilized grade, 3-8mm thickness, hard coat optional	Acrylic: ~50% higher cost, more brittle; PS: Fragile, poor weatherability
Equipment Viewing Windows/Instrument Covers	High-transmission optical grade, 2-10mm thickness, anti-static optional	Polycarbonate (PC): Higher cost, prone to scratching; Glass: Heavy, fragile
Safety Protective Barriers/Face Shields	General grade, 3-12mm thickness, high toughness	Acrylic Lower impact strength; PC: Poorer flame retardancy (V-2 grade)
Stationery/Gifts/Display Stands	General grade, 1-5mm thickness, easy thermoforming	PET Sheet: Good toughness but lower hardness; Glass: Difficult to process, unsafe
Medical Devices/Sterile Packaging Viewing Windows	Food/Medical grade, 0.5-3mm thickness, gamma-ray sterilizable |	Medical PET/PP: Insufficient flame retardancy; Glass: Not portable

Processing & Economic Parameters

Type	Type	Cost-Performance Characteristics
General Transparent Sheet	Sawing, CNC, vacuum forming, heat bending, bonding	Sawing, CNC, vacuum forming, heat bending, bonding
High-Transmission Optical Sheet	Precision cutting, polishing, screen printing, coating	Excellent optical properties, suitable for high-end displays
UV-Stabilized Weatherable Sheet	Standard machining, outdoor installation	Long outdoor lifespan, low maintenance cost
Hard-Coated Sheet	Hard-Coated Sheet	Significantly improved scratch resistance and durability
Anti-Static Transparent Sheet	Requires grounding; avoid damaging surface coating	Meets special requirements for cleanroom environments

Key Notes

1.  Processing & Post-Processing Guidelines:

       Protective Film: It is recommended to keep the protective film on before and during processing to prevent surface scratches.

       Cutting & Drilling: Use sharp carbide tools with low feed rates and ensure adequate cooling to avoid overheating, melting, and resulting white edges or burrs.

       Thermoforming: Recommended temperature: 135-155°C. Ensure uniform heating. Due to its lower thermal conductivity, heating time is longer than for acrylic.

       Bonding: Recommended to use PVC-specific solvent cement (e.g., THF/cyclohexanone mixture) or UV-curing adhesive for a clear, seamless bond. Avoid using instant adhesives that can cause "crazing".

       Printing: Screen printing offers good adhesion; PVC-specific inks should be used.

2.  Selection & Usage Recommendations:

       Outdoor Applications: Must select UV-stabilized grades; otherwise, rapid yellowing and embrittlement will occur.

       Frequent Friction/Contact: Recommend selecting sheets with a Hard Coat (HC) surface treatment.

       Food Safety Areas: Ensure the sheet complies with relevant food contact regulations (e.g., FDA).

       High Optical Precision Requirements: Select low-haze, high-transmission grades and pay attention to stress control during processing to prevent optical distortion.

This product has been successfully applied in:

   Recessed advertising lightbox panels for subway platforms (UV-stabilized grade, 6mm thickness, V-0 flame retardant, weatherability over 8 years).

   Protective viewing windows and inspection windows for automated production lines (High-transmission optical grade, 8mm thickness, impact-resistant, prevents equipment fragment splash).

   Retail display stands and packaging inserts for high-end cosmetics (Custom light blue transparent color, high gloss, environmentally friendly and non-toxic).