INTERN CEMS GT-5B-2001 Intercoat Adhesion of Paint《油漆涂层粘间粘附性》.pdf

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1、INTERNATIONAL TRUCK AND ENGINE CORPORATION NUMBER: CEMS CEMS GT-5B (CORPORATE ENGINEERING MATERIAL SPECIFICATION) I TITLE ICURRENT ISSUE DATE: Intercoat Adhesion Of Paint August 2001 VUTTEN/REVIE WED BY APPRO VED BY SUPERSEDES ISSUE OF Materials Engineering Materials Engineering July 1999 PWlNTFD CB

2、PIES 8F THIS DOCI. iB.ltFST MUST RE VERIFIED FOR CURREIYT REVISIC33 1.0 INTRODUCTION This is a method for evaluating the ability of a dry film of paint to adhere to a dry film of primer or a dry film of top coat. 2.0 APPARATUS Recirculating oven capable of maintaining a temperature of 49 I. 3C (120

3、I. 5F) 3.0 MATERIAL 3.1 Bonderite CD-10 or Bonderite 958 zinc phosphated steel panels, 100 x 150 mm (4 x 6 inches), available from Advanced Coatings Technologies, 273 Industrial Drive, Hillsdale, Michigan 49242. OR Fiber glass reinforced plastic panels available from Materials Engineering, Internati

4、onal Truck and Engine Corporation, P. O. Box 1109, Ft. Wayne, Indiana 46801-1 109. 3.2 No. 360 sandpaper, Permacell #99, or 3M etc. 3.3 Transparent cellophane tape, 3M Co. No. 610 available from Gardner Laboratories or from local 3M distributors. 3.4 Tackrag 3.5 Scribing knife 4.0 PROCEDURE 4.1 Prep

5、are the appropriate quantity and type of panels for the grade of paint being tested according to the procedure specified in Test Method GT-13, Panel Preparation. For Grades that are oven dried double the specified drying time (overbake). 4.1.1 Two Bonderite CD-10 or Bonderite 958 zinc phosphated ste

6、el panels - Grades -17, -17HS, -18, - 19, -19HS, -29, -29HS, -29T, -29THS, -50, -55, and -55W 4.1.2 Four Bonderite CD-10 or Bonderite 958 zinc phosphated steel panels - Grades -53 and -53A 4.1.3 Two fiber glass reinforced plastic panels - Grades -52, -52HS, and -52W For Grades -53, -53A, -55, and -5

7、5W where four panels are prepared, two alternative drying procedures, an air dry and an oven dry, are specified. For these grades, two panels will be dried according to the air drying procedure and the remaining two panels will be overbaked according to the oven drying This document is restricted an

8、d may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 0200 1 by International Truck and Engine Corporation. AUGUST 2001 Page 1 of2 Copyright International Truck

9、and Engine Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-NUMBER TITLE CURRENT ISSUE DATE: CEMS GT-5B Intercoat Adhesion Of Paint August 2001 procedure. For grades where two panels are prepared, only one drying pr

10、ocedure is specified; for these grades, both panels will be dried according to this procedure. 4.2 For Grades -17, -17HS, -18, -19, -19HS, -29, -29HS, -29T, and -29THS, wet sand both of the prepared panels for one-half of their length with No. 360 sandpaper. Wash these panels in water, dry wipe with

11、 industrial grade xylene, dry with absorbent paper and wipe with a tack rag. Apply another coat of the same enamel to both of the prepared panels and again dry according to the procedure outlined in Panel Preparation. 4.3 For all grades, age the panels for 72 hours in a recirculating oven at 49 I. 3

12、C (120 I. SF), remove and cool to 21 to 27C (70 to 80F). 4.5 Scribe panels using the procedure described in Test Method GT-SA 5.0 REPORT Report Pass or Fail using criteria of GT-SA This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced withou

13、t permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 0200 1 by International Truck and Engine Corporation. AUGUST 2001 Page 2 of 2 Copyright International Truck and Engine Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-