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-3F TITLE: Storage Stability Of Paint In Pressurized Cans 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
3、 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 applicability of regulatory limi
4、ts prior to use. Change 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 a paint to withstand degradation after prolonged storage in pressurized containers. 2.0 APPARATUS 2.1 Mechanic
5、al small can shaker, Red Devil or equivalent 2.2 Recirculating oven capable of maintaining a temperature of 60 + 3C (140 + 5F). 3.0 MATERIAL Bonderite CD-10 or Bonderite 958 zinc phosphated steel panel, 100 x 300 mm (4 x 12 inches), available from Advanced Coatings Technologies, Inc., 273 Industrial
6、 Drive, Hillsdale, Michigan 49242. 4.0 PROCEDURE 4.1 Spray two panels according to ”Panel Preparation” procedure as outlined in Test Method GT-13, Panel Preparation, Method J, using a new pressurized can for each panel. 4.2 After spray application, store a used and unused can in an upright position
7、and the other used and unused can in an inverted position for 21 days at 60C (140F). 4.3 At the end of this period, cool the cans to room temperature 21 to 27C (70 to 80F). 4.4 Shake can vigorously up and down and in rotary motion for 3 minutes by hand. 4.5 Using the application techniques outlined
8、in Test Method GT-13, Panel Preparation, Method J, spray one panel from each can of test sample observing the spray characteristics. Any sputtering, orifice plugging or irregular spray output will be considered a failure. 4.6 Compare the panels from step (5) with the original panels from step (1). A
9、ny change of color or texture or evidence of resin/pigment separation will be considered a failure. 5.0 REPORT Report pass or fail. Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
