GMW GMW15802 PDF

Note: Nothing in this standard supercedes applicable laws and regulations.

Note: In the event of conflict between the English and domestic language, the English language shall take precedence.

Purpose/Material Description.

This specification covers the properties of an adhesive type polyethylene for the manufacturing of multi-material parts, especially for applications in the fuel area. The polyethylene exhibits excellent longtime Environmental Stress Cracking Resistance (ESCR).

Symbols.

The material abbreviation according to ISO 11469 is >PE<.

Applicability.

Typical applications include fuel system component bonding layers. The specification is classified by Types according to the materials to which they are adhering.

Type 1. Layer used in the adhesion of Ethylene Vinyl Alcohol (EVOH) to High Density Polyethylene (HDPE) in blow molded fuel tank applications. Resins to Type 1 will only be given full approval in GM Materials Approved Source List after a fuel tank has been validated for a GM program.

Type 2. Layer used in the adhesion of Polyamide to HDPE in fuel system components. If it is not being used as an inner layer in a multilayer tank component, then this is not the correct specification.