How we use GORE-TEX ePE membrane to design sustainable long-lasting shell layers free from PFCs
What is Gore-Tex ePE?
A breakthrough in sustainability, ePE is a true innovation from Gore when it comes to waterproof performance materials. Short for expanded polyethylene, this membrane is 100% free from PFCs (perfluorochemicals. The DWR is also 100% free from PFCs.
PFC-free DWR treatment
The ePE membrane undergoes a PFC-free DWR (Durable Water Repellent) treatment. The DWR is applied before sewing the garments, and you still need to reapply DWR periodically to maintain your garment's performance as new. The good news is that this is as simple as putting your jacket and pants in the washing machine. All this to say that Tierra can now offer high-performing waterproof garments for the most demanding conditions that are entirely free from PFCs.
Maintained performance
Gore-Tex ePE membrane comes with the same “Guaranteed to keep you dry” promise that we have gotten used to; ePE has the same performance as other Gore-Tex technologies. The only difference is that you need to reapply DWR slightly more often than when using DWR containing PFCs. This is because the properties of the PFC-free DWR make it wear off faster.
Tierra and Gore
We have been working with Gore since Tierra was founded in 1983. In fact, you could say that the discovery of this material was the start of our company, but that is another story for another day. The reason we have been using Gore-Tex all these years is simple – it's just the best material for keeping you dry on the mountain (and elsewhere). Our goal has always been to develop gear to the highest standards in performance as well as sustainability. With Gore-Tex ePE, we are able to push this even further.
Your part in all this
As a consumer, you can contribute by buying only what you truly need. If you have shell garments that provide you with the functionality you need, don’t buy new stuff just because new colors are available. Also, only buy high-quality gear; it will be cheaper in the long run. Last but not least, take good care of your gear. Keep it clean and repair it if needed. If you have any questions on how to wash or repair your Tierra garments, do not hesitate to contact us.
