Polyester Film For Roofing
Polyester film(Mylar film) is used in fiberglass reinforced pipe, tank, container for the mould releasing and surface calendaring.
Inside of polyester film is covered with silicone oil, it is more effective to keep mould release and surface calendar.
The thickness of polyester film varies from 15micrometers to 125micrometers.
General thickness: 25um, 30um, 35um, 50um, 75um.
The width can be arranged according to customer’s requirements.
General width: 25mm-3500mm.
Inner diameter of the core tube(PP or paper materials) is 76mm, outer diameter of the core tube is 88mm.
Soluble extract content of PET polymer in chloroform (according to U.S.A. FDA test requirement)
Model liquid | Unit | Time | Temperature | Maximum allowable limit | Test result |
Distilled water | 24hr | 120°F | 0.5 | <0.1 | |
Normal Heptane | Mg/inch2 | 24hr | 120°F | 0.5 | <0.1 |
8%Ethyl alcohol | Mg/inch2 | 24hr | 120°F | 0.5 | <0.1 |
Test Method:FDA 21 CFR 177.1630(e)
