US 3,953,566 teaches a method to make a water proof breathable membrane based expandable, amorphous locked Poly tetrafluoroethylene (ePTFE).
Continue reading “Water proof breathable membrane”I came, I saw, I enjoying
US 3,953,566 teaches a method to make a water proof breathable membrane based expandable, amorphous locked Poly tetrafluoroethylene (ePTFE).
Continue reading “Water proof breathable membrane”