1、 This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2009 by Navistar, Inc. AUGUST 2009 Page 1 of 1 NAVISTAR, INC. CEMS (CORPORATE ENGINEERING MATERIAL SPECIF
2、ICATION) NUMBER: CEMS GT-26 TITLE: Glycol Compatibility Of Paint CURRENT ISSUE DATE: August 2009 WRITTEN/REVIEWED BY: Material Engineering APPROVED BY: Material Engineering SUPERSEDES ISSUE OF: August 2001 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specification may i
3、nvolve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and health practices and to determine the applicability of regulatory limits prior to use. Cha
4、nge Notice: Replaced “International Truck and Engine Corporation” with “Navistar, Inc.” per corporate directive. 1.0 SCOPE This is a method for evaluating the ability of paint to cover glycol-type contamination. 2.0 APPARATUS Recirculating oven capable of maintaining a temperature up to 93C (200F) w
5、ithin +/- 3C (+/-5F). 3.0 MATERIAL 3.1 Bonderite CD-10 or Bonderite 958 zinc phosphated steel panels, 100 x 300 mm (4 x 12 inches), available from Advanced Coatings Technologies, 273 Industrial Drive, Hillsdale, Michigan 49242. 3.2 1:1 Water:Ethylene Glycol/Propylene Glycol, Technical Grade 3.3 Abso
6、rbent Paper, Kleenex, Kimwipes, or equivalent. 4.0 PROCEDURE 4.1 Dip two (2) panels in the 1:1 mixture of Ethylene Glycol or Propylene Glycol and water to a depth equivalent to one-half the panel length. 4.2 Remove the panels and allow to drain in a vertical position for 15 minutes. 4.3 Place the pa
7、nels vertically in a recirculating oven for 30 minutes at 88 to 93C (190 to 200F). 4.4 Remove the panels and allow to cool in still ar at 21 to 27C (70 to 80F). 4.5 Using absorbent paper, remove excess solution from bottom edge of the panels. 4.6 Prepare two panels according to the method specified
8、for the grade tested in CEMS Test Method GT-13, Panel Preparation, except eliminate the cleaning and priming steps. 4.7 After drying, age the prepared panels in a recirculating oven for 72 hours at 49 + 0.3C (120 + -5F). Remove and cool to 21 to 27C (70-80F). 4.8 Examine the panels; any evidence of
9、cratering, paint film “crawl” or dissolution on either the Immersed or Plain portions of the panel will constitute a failure. 5.0 REPORT Report whether the paint passes or fails this test. Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
