- Light weight
- Class 1 flammability rating
- Chemical resistance
- Dimensional stability
- Neutral pH
- Tear resistance
Being 100% HDPE, Tyvek® or products made from Tyvek® can be mechanically recycled into products such as underground cable protection piping, automotive parts, blown film, packaging cores and flowerpots. Products made from Tyvek® which are printed, glued, welded or sewn can also be recycled as can Tyvek® which has been extrusion coated or laminated with a polymer of the same family. Polyethylene can normally be recycled 4 to 5 times before physical properties are substantially affected. Chemical feedstock recycling Tyvek® can be chemically recycled with other polymers. In this process the original material is separated into its chemical components, which are then recovered for reuse.
When incinerated in excess oxygen Tyvek® yields only water and CO2 . It is excellent in fuel yielding: two or more times the energy of coal, and is equal to oil in generating heat. Incineration of HDPE does not contribute to acid rain.
Whilst DuPont does not encourage landfill, Tyvek® can, as a last resort, be safely disposed of in this way. It will not leach into groundwater because it is chemical inert and doesn’t contain binders, fillers and plasticizers.
Where to recycle Tyvek® at the end of their useful life, products made from Tyvek® can be recycled via your local recycler for polyethylene waste. Additionally DuPont has set up a network of recyclers who have agreed to take back items made from Tyvek® for mechanical recycling into other products.
For small quantities (less than 25), stuff them in an inside-out Tyvek envelope and mail them to:
Attn. Shirley B. Wright
2400 Elliham Avenue #A
Richmond, VA 23237