Attribute	Description	Reference
Material Composition	Multi-layer coextruded structure (e.g., PET/PE/PA, PET/EVA, or PA/EVOH/PE) with UV-absorbing/reflective additives (e.g., benzotriazole derivatives, inorganic nanoparticles).	6 7 8
UV Resistance	Blocks >99% of UV radiation (300-400 nm); maintains optical/mechanical properties after 2,000+ hours of UV exposure. Additives include red-shifted UVA (e.g., CGL-0139) for long-wave UV blocking.	6 7 8
Optical Properties	Transmittance: >90% (visible light, 380 -780 nm) Haze: <5% Gloss: ≥85% (60° angle)	3 8
Barrier Properties	OTR: *≤5 cm³/m²day (23°C, 0% RH) WVTR: ≤2 g/m²day* (38°C, 90% RH)	2 3
Mechanical Strength	Tensile Strength: ≥120 MPa (MD), ≥100 MPa (TD) Elongation at Break: ≥80% Puncture Resistance: ≥25 N	2 10
Thermal Stability	Withstands -40 °C to 180°C; suitable for retorting (121°C sterilization) and freezing.	3 10
Safety & Compliance	Complies with FDA 21 CFR, EU 10/2011, RoHS, and REACH for food/medical contact.	7 8
Processing Features	Heat Sealability: 120-180°C (compatible with VFFS/HFFS machines) Printability: Corona-treated surface for high-resolution flexo/gravure printing	6 10

Product Specifications

Parameter	Specification	Reference
Thickness	50-200 μm (customizable; tolerance ±5 μm); UV-blocking layer: 0.5-5 μm	6 10
Width	200-1,500 mm (extendable to 3,000 mm for industrial rolls)	10
Roll Dimensions	Core Size: 3" (76 mm) or 6" (152 mm) Max. Roll Weight: 150 kg	10
Physical Properties	Density: 1.2-1.4 g/cm³ Shrinkage: ≤1.5% (100°C, 30 min) Surface Energy: ≥38 dyne/cm	3 10
UV Resistance Metrics	UV Blocking Efficiency: >99% (300-400 nm) Accelerated Weathering Life: 2-5 years (ISO 4892)	6 7
Functional Additives	Optional: Anti-fog (contact angle <10°), anti-static (surface resistivity ≤10¹¹ Ω/sq), or EMI shielding (transparency >50%, SE ~40 dB)	2 8
Sustainability	Recyclability: Mono-material PE/PP variants for single-stream recycling Biodegradable Options: PLA/PHA-based composites (ASTM D6400)	3 8
Supply Parameters	MOQ: 500 kg Lead Time: 15-30 days Packaging: Moisture-proof EPE-foamed cartons