DuPont Tyvek lids are ideal meterail for thermoforming trays, that protects premium, heavy, sharp or fragile components from damage and contamination during shipping and prior to medical usage. Tyvek lids confirms a portfolio of tough, durable sheet that are 8 times stronger than paper.as its tear-resistance and durability, even contains surgical instruments or with irregular or sharp edges (knife edges),it is not easy to pierce it.

sterilization option: ETO, Gamma ray, radiation

excellent performance at strength, bacteria barrier, life-cycle and microbial barrier( great resistance to microbial penetration), clean peelability, leaving no fiber tear or particulate, along with high sealing strength (maximum 3.5-7N/15MM), good tensile strength and good breathability (35-80 seconds). 

Comply with ISO11607,EN868,GB/T19633

other standards

[1] GB/T 19633-2005. Packaging for terminally sterilized medical devices

[2] GB/T 5402-2003. Paper and board-Determination of air peremeance(medium range)-Gurley method

[3]ISO/DIS 22611 - Clothing for protection against infectious agents -- Test method for resistance to penetration by biologically contaminated aerosols.

[4]ASTM F 1980 Standard Guide for Accelerated Aging of Sterile Barrier Systems for Medical Devices