GMW16700

Description / Abstract: GMW16700, 2nd Edition, February 2017 - Wash-off Resistance Test for Adhesives and Sealers

Introduction

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. This test procedure is used to determine the wash-off resistance of adhesives, sealers and other materials that are processed through assembly plant cleaning, pre-treatment and electrocoat (ELPO) systems.

Applicability. This test procedure is intended for use with adhesives, sealers and other materials that are applied at the metal center or body shop, and are subsequently processed through cleaning, pre-treatment and ELPO systems at the assembly plant. This procedure may be used for materials that are pumpable or pre-formed. Test materials are evaluated in the uncured or gelled condition, as applicable for the specific test material.

• Method A is an assembly plant test.

• Method B is a laboratory test with direct spray impingement.

• Method C is a laboratory test with dynamic flow rate for wash off from between metal. 1.3 Remarks. Not applicable.