gcsescience.com                                                          65                                                          gcsescience.com

Products from Oil

Clothing - Waterproof - Breathable - Goretex.

Clothing can be made waterproof by using a synthetic fibre
(for example Nylon) with a polyurethane coating.

The clothing has a thin film of PTFE
which has a large number of very small holes called pores.
There are over 1 billion holes per square centimetre.
The holes are too small to let liquid water pass through
which makes the film waterproof.
The holes are big enough to let water vapour through
which lets sweat escape through the clothing making it breathable.

This type of material is called Goretex (or Gor-Tex)
and is ideal for outdoor clothing.

        Headings        Polymers        Search        Questions        

gcsescience.com     Contents     The Periodic Table     Index     Quizzes    gcsescience.com

Copyright © 2008 Dr. Colin France. All Rights Reserved.