Tyvek® 1073B, produced by DuPont™, is the strongest and most robust grade in the Tyvek® family for medical packaging. Designed for high-demand applications, it delivers an exceptional balance of mechanical strength, microbial barrier protection, and sterilization compatibility.
Compared with medical-grade paper, Tyvek® 1073B offers significantly higher puncture and tear resistance while remaining lightweight. Its unique flashspun high-density polyethylene (HDPE) structure creates a dense yet breathable matrix, allowing sterilant penetration while preventing microbial ingress. This ensures sterility is maintained until the moment of use, even after years of storage.
Key Technical Advantages
- Superior Strength– Thickest medical-grade Tyvek® (7.6 mil / ~194 μm), delivering maximum resistance to tearing, bursting, and puncturing.
- Reliable Microbial Barrier– Continuous filament structure blocks particles down to submicron size.
- Clean Peel & Low Particulate Release– No fiber shedding during opening, minimizing contamination risk.
- Multi-Sterilization Compatibility– EO, gamma, e-beam, and low-temperature plasma.
Application Example: Hopeway AMD Header Bag with Tyvek® 1073B
Hopeway AMD’s AMD Header Bag with Tyvek® integrates 1073B as the header material to combine high visibility and seal integrity with Tyvek’s strength and microbial protection.
Ideal for:
- Heavy or bulky devices requiring maximum tear resistance
- Products with sharp or irregular edges
- Long-distance transport where packaging durability is critical
By using Tyvek® 1073B, these header bags achieve secure seals, excellent sterilant penetration, and long-term sterility maintenance.
Tyvek® Medical Grade Comparison
Feature / Property |
Tyvek® 2FS |
Tyvek® 1059B |
Tyvek® 1073B |
Nominal Thickness |
~5.3 mil (135 μm) |
~6.0 mil (152 μm) |
~7.6 mil (194 μm) |
Basis Weight |
42.5 g/m² |
59 g/m² |
74.5 g/m² |
Tear Resistance |
Low–Medium |
High |
Highest |
Puncture Resistance |
Low–Medium |
High |
Highest |
Suitable Device Types |
Light–medium weight devices |
Medium–heavy devices |
Heavy, bulky, sharp-edged devices |
Sterilization Methods |
EO, Gamma, e-beam |
EO, Gamma, e-beam, Low-temp plasma |
EO, Gamma, e-beam, Low-temp plasma |
Typical Applications |
Small sterile packs |
Surgical kits, gowns, drapes |
Orthopedic kits, large surgical trays |
Shelf Life (with intact seals) |
5+ years |
5+ years |
5+ years |
Clean Peel Performance |
Good |
Excellent |
Excellent |
Microbial Barrier |
Excellent |
Excellent |
Excellent |
Conclusion
Tyvek® 1073B stands at the top tier of sterile barrier materials, delivering unmatched performance in durability, microbial defense, and sterilization compatibility. For medical device manufacturers seeking maximum protection—especially for heavy-duty or high-value devices—1073B remains the material of choice.
When combined with engineered packaging solutions such as Hopeway AMD’s header bags, it ensures medical devices arrive sterile, safe, and ready for use.