8011 H18 Lacquered PTP Aluminum Foil – Applications and Technical Requirements

8011 H18 Lacquered PTP Aluminum Foil is widely used as lidding foil for pharmaceutical blister packs. Its aluminum substrate provides strong protection against environmental exposure, while the lacquer coating enables effective sealing with compatible blister materials. The main application is pharmaceutical PTP blister packaging for tablets, capsules, and other solid dosage forms. The aluminum foil acts as a protective barrier, helping shield sensitive products from moisture, oxygen, and light during storage and transportation.

The H18 temper provides a hard aluminum condition with good dimensional stability. This is beneficial during slitting, printing, coating, and high-speed blister packaging because the foil needs to maintain consistent handling and surface characteristics throughout production. The lacquer layer must provide stable heat-sealing performance. Its formulation and coating weight should match the blister base material, such as PVC, PVDC-coated PVC, or other compatible substrates. Proper compatibility helps achieve consistent sealing without compromising package integrity. Printing performance is another important consideration. PTP foil commonly carries pharmaceutical information, brand graphics, dosage instructions, and other identification details. A uniform and clean coated surface supports good ink adhesion and clear printing. During manufacturing, suppliers need to control foil thickness, mechanical properties, surface quality, pinhole level, coating uniformity, coating adhesion, and dimensional tolerances. These factors can directly influence sealing reliability and packaging-line performance.