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 SPECI
2、FICATION) NUMBER: CEMS GT-27 TITLE: Application Heat Resistance CURRENT ISSUE DATE: August 2009 WRITTEN/REVIEWED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES ISSUE OF: August 2001 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specification may
3、involve 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. Ch
4、ange Notice: Replaced “International Truck and Engine Corporation” with “Navistar, Inc.” per corporate directive. 1.0 SCOPE The purpose of this method is to evaluate the ability of paint to be applied over a heated substrate without appearance of film degradation. 2.0 APPARATUS Recirculating oven ca
5、pable of maintaining a temperature up to 93 C (200 F) within +/- 3 C (+/- 5 F). 3.0 MATERIAL 3.1 Clean, bare steel test panels available from Advanced Coatings Technologies, 273 Industrial Drive, Hillsdale, Michigan 49242. 3.2 Aluminum test panels. 3.3 Bonderite CD-10 or Bonderite 958 zinc phosphate
6、d steel panels, 100 x 200 mm (4 x 8 inches), available from Advanced Coatings Technologies, 273 Industrial Drive, Hillsdale, Michigan 49242. 4.0 PROCEDURE 4.1 Place one of each of the three (3) types of panels in a recirculating oven at 79 C (175 F) within (+/- 5 F) for fifteen minutes. 4.2 Within t
7、hirty seconds, spray the panel according to CEMS Test Method GT-13, Method B, omitting Steps 1-3. 4.3 After drying, age the prepared panels in a recirculating oven for 72 hours at 49 +/-3 C (120 +/- -5 F). Remove and cool to 21 to 27 C (70 to 80 F). 4.4 Examine the panels: Any evidence of cratering,
8、 paint film separation, loss of gloss, or change of appearance from unheated panels 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-,-,-
