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 2 NAVISTAR, INC. CEMS (CORPORATE ENGINEERING MATERIAL SPECIF
2、ICATION) NUMBER: CEMS G-5, Part V Grades-55 and -55W TITLE: Part V Paints Primers, Grades 55 And 55W CURRENT ISSUE DATE: August 2009 WRITTEN/REVIEWED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES ISSUE OF: February 2002 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR C
3、URRENT REVISION This specification may 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 applicabilit
4、y of regulatory limits prior to use. Change Notice: Replaced “International Truck and Engine Corporation” with “Navistar, Inc.” per corporate directive; added section 2.1 “Restricted Chemical Substances” per CEMS B-50. 1. 0 APPLICATION This specification covers a high quality baking primer formulate
5、d for flow coat application. This primer is a suitable substrate for Grades -17, -18, -19, and -29 enamels. 2.0 SCOPE This specification covers the as-received liquid and the as-applied dry film property requirements of the paint. for sections 3.0, 4.0, 5.0, 7.0, 8.0, 9.0, 10.0, and 11.0; see Part V
6、 General Requirements 2.1 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the CEMS B-50 specification. 6.0 PROPERTY REQUIREMENTS 6.1 Liquid Properties Liquid Properties Color Designation All
7、 Colors Test Designation (c) Grade -55 Grade -55W Weight Per Unit Volume, Min (a) lb/gallon 10.3 8.1 ASTM D-1475 kg/liter 1.23 0.97 Nonvolatile Content (a) % by Weight, min 50.0 23.0 CEMS GT-1A % by Volume, min 33.0 22.0 CEMS GT-1B Cryptometer (b) Reading, min ft 2 /gallon 970 400 CEMS GT-2A m2 / li
8、ter 23.8 9.82 Viscosity, seconds 35 to 45 60 to 65 No. 4 Ford Cup Per ASTM D 1200 VOC lbs/gal, max 3.5 3.0 ASTM D 3960 kg/liter, max 0.42 0.36 Fineness of Grind, North Standard Graduations, min (a) 7.0 ASTM D 1210 Flash Point, min F 80 220 ASTM D 56 C 27 104 Dilution Stability, Hours, min (a) 16 FST
9、M 4203.1 Storage Stability (a) Appearance Pass CEMS GT-3B Increase in Viscosity, Seconds, max 15 Chromic Acid Compatibility, max 3% 0% CEMS GT-16 p H - 8.3 to 8.7 ASTM E-70 Safety precautions must be observed when using electrostatic spray equipment with water borne coatings. (a) Most suitable for a
10、cceptance testing. Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NUMBER: CEMS G-5, Part V Grades -55 and -55W TITLE: Part V Paints Primers, Grades 55 And 55W CURRENT ISSUE DATE:
11、 August 2009 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 2 of 2 (b) For acceptance testing, a cryptometer requ
12、irement per CEMS GT-2A may be used in lieu of the hiding power requirement provided a correlation has been established between results from the specific cryptometer used and the results of the hiding power of a dry film per CEMS GT-2B. (c) All test designations refer to the latest issue unless other
13、wise stated. 6.2 Dry film Properties Dry Film Properties Navistar Color Designation All Colors Test Designation (c) Initial Gloss at 60 Degrees (a) 20 to 60 CEMS GT-6B South Florida Exposure Surface Condition After 12 Months Pass CEMS GT 7F Gloss, At 60 Degrees After 12 Months Pass Color Change Afte
14、r 12 Months Exposure and Polish Pass Hiding Power Required, max (a), (b) mils 0.5 CEMS GT-2B m 13 Curing Properties on Receipt, 30 Minutes at 177 C (350 F) Pass CEMS GT-22 Toughness Pass CEMS GT-4C Hardness, min(a) HB CEMS GT-4D Adhesion, min 95 CEMS GT-5A Intercoat Adhesion Tape Appearance Pass CEM
15、S GT-5B Feather Edge Appearance Pass Accelerated Adhesion, % min 90 CEMS GT-5C Color (a) Pass FSTM 4250 Immersion Distilled Water, 100 Hours Pass CEMS GT -5C Ethylene Glycol Pass NCEMS GT-7J Gravelometer Rating 2A, 4A, or 4B as applicable per CEMS GT 28 SAE J 400 Salt Spray, 500 Hours Exposure Dry F
16、ilm Appearance Pass CEMS GT-7D Corrosion Creepage, max inch 0.03 mm 0.76 Humidity, 500 Hours Exposure Pass CEMS GT-7E Holdout Unsanded Panels, % min 95 CEMS GT-6A Sanded Panels, % min 95 Difference Between Unsanded Panels and Sanded Panels, % max 5 Sanding Pass CEMS GT-7B (a), (b), and (c) - see foo
17、tnotes for Section 6.1 6.3 Test Panel Requirements The number, type, and size of test panels required for each test is described in CEMS Test Method GT-13. Prepare test panels using Method E per CEMS GT-13. Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
