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Series: Foil Seals
Blister Foil Seals
Blister Foil Seals represent the absolute pinnacle of high-barrier, life-saving pharmaceutical packaging. The undisputed gold standard for this critical application is 8079 PVDC Coated Aluminum Foil. The 8079 alloy is specifically and exclusively engineered for ultra-thin rolling operations, possessing higher iron content ($0.7\% - 1.3\%$) and an ultra-low silicon profile ($\leq 0.15\%$) compared to standard 8011 alloys
Key Benefits
Ultra-thin foil construction
Pharmaceutical-grade application
| Parameter | Specification / Value |
|---|
| Base Metallurgical Alloy | 8079 Aluminum Alloy (O-Temper / Fully Annealed) |
| Standard Thickness Range | 20 μm to 30 μm (Standard PTP Blister formats) |
| Tensile Strength (H18) | ≥ 100 – 150 N/mm² (Typical ≥ 150 MPa) |
| Elongation Parameter | 3.5% – 7% (Temper-dependent; O-temper yields higher) |
| Coating Matrix | PVDC (Primary Barrier) + Heat Seal Lacquer (4 – 6 gsm) |
| WVTR | < 0.1 g/(m² · day) at 38°C, 90% RH |
| OTR | < 1 cm³/(m² · 24h) at 23°C, 0% RH |
| Bursting Strength | 80 – 270 kPa |
| Pinhole Limit Tolerance | ≤ 1 pinhole > 0.1 mm per m²; Absolute zero > 0.3 mm |
| Primary Industry Applications | Pharmaceutical Tablets, Capsules, Highly Moisture-Sensitive Drugs |
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