Medical aluminum foil thickness specifications
Medical aluminum foil is used in various applications such as pharmaceutical blister packs, strip packs, and sachets. The thickness specifications for medical aluminum foil vary depending on its intended use. Below is a detailed description and table summarizing the typical thickness specifications.
Detailed Description
Medical aluminum foil used for blister packs is usually coated with a heat-sealing material to ensure good adhesion with PVC or PVDC. The typical thickness of aluminum foil for this purpose ranges from 20 μm to 30 μm.
Strip pack foil is designed to protect tablets, capsules, or powders from light, moisture, and contamination. It is often made from soft-tempered aluminum with thicknesses ranging from 30 μm to 50 μm.
For sachets and pouches, aluminum foil is combined with other materials like plastic or paper to form a multi-layer structure. The aluminum layer is typically 6 μm to 20 μm thick.
Used as a seal for containers and bottles, lidding foil typically has a thickness of 30 μm to 50 μm and may include a coating for heat-sealing.
Key Properties
Barrier Properties: Excellent protection against light, moisture, and gases.
Tensile Strength: High tensile strength ensures durability during handling.
Chemical Resistance: Resistant to most chemicals used in pharmaceutical products
Application | Foil Type | Typical Thickness Range (μm) | Comments |
---|---|---|---|
Blister Packs | Plain or Coated Foil | 20–30 | Heat-sealable, used with PVC or PVDC for tablets and capsules. |
Strip Packs | Soft Aluminum Foil | 30–50 | Protects from moisture, oxygen, and light. |
Sachets/Pouches | Multi-layer Foil | 6–20 | Combined with other materials like plastic or paper for flexibility and strength. |
Lidding Foil | Coated Aluminum Foil | 30–50 | Heat-sealable coatings for sealing containers and bottles. |
Pharmaceutical Closures | Foil for Seals | 50–100 | Thicker foil used for larger closures to ensure hermetic sealing. |
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