High temperature, oxidizing gases, wet, cold, ultraviolet and ionizing radiation can significantly impact the long-term life of garments made of DuPont™ Tyvek®. The antistatic properties may reduce over time. The user must ensure that the dissipative performance is sufficient for the application. DuPont™ suggests that Tyvek® garments be used within 5 years of receipt, provided they are appropriately stored and pass a complete visual inspection.

DuPont™ offers a complete line of specially manufactured, processed and packaged apparel for use in controlled environments. Tyvek® 400 garments have not been designed for controlled environment applications. Please see our complete line of controlled environment products.

DuPont™ Tyvek® 400 garments are treated to minimize static build up and cling. When static dissipation is crucial, assess the entire ensemble and use proper rounding devices. In certain conditions, garments may discharge static electricity, which can be dangerous in flammable environments. Take precautions, but not limited to, like using water spray, overcovers, increasing humidity, applying anti-static coatings, and grounding straps. Test static dissipation before entering classified areas. Do not wear DuPont™ Tyvek® 400 garments in flammable or explosive atmospheres. Don't enter areas with combustible gas concentrations while wearing them. If in a potentially flammable environment, retreat immediately

DuPont™ Tyvek® 400 is water-resistant, not waterproof. While the material repels water-based liquids and aerosols upon initial contact, it is breathable, meaning it can eventually allow water to penetrate under pressure, time, or heavy wetting. It is not suitable when liquid is dripping, running or if skin spotting occurs.

No, DuPont™ Tyvek® 400 garments are not flame resistant or flame retardant and should not be used around heat, flame, sparks, or potentially flammable or explosive environments. DuPont™ Tyvek® 400 garments will ignite and continue to burn and melt.

In addition, DuPont™ Tyvek® 400 garments should not be worn under or over a garment made of Nomex® or any other flame resistant fabric if the potential of a fire or electric arc exists.

DuPont™ does not recommend washing Tyvek® 400 garments for re-use. These garments are designed for limited use and can be worn until damaged, altered or contaminated

Store DuPont™ Tyvek® 400 garments in a cool, dark, dry location free of dirt and insects. Sunlight, ozone, high temperatures (>120°F; 49°C), vehicle exhaust fumes, compression under heavy weights, and sharp edges or projections are some conditions known to degrade the materials in these garments. Store DuPont™ Tyvek® 400 garments in boxes, bags, or hangers. Never step on protective garments. Never place or store heavy objects on top of protective garments.