1、ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2002 07 25 Revised Removed ESB-M2G171-BB, Updated & Renumbered B. Xu 1978 12 08 Metricated, Renumbered and Retyped CAH1-RD572066-205 1970 10 09 Released CAZ1-RD538759-2 Printed copies are uncontrolled Page 1
2、of 5 Copyright 2002, Ford Global Technologies, Inc. PRIMER, ADHESION - ELASTOMERIC BONDING TAPE ESB-M2G171-AB 1. SCOPEThe material defined by this specification is a rubber based, moisture resistant, adhesion primer.2. APPLICATIONThis specification was released originally for materials used for prim
3、ing the painted surfaces of thepinch weld flange prior to the application of ESB-M3G95 Elastomeric Bonding Tape for windshield andbacklite installations.3. REQUIREMENTS3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requi
4、rements For Production Materials (WSS-M99P1111-A). 3.2 COLOR Black 3.3 HIDING POWER The primer when applied in a 0.003 - 0.005 in (76 - 127 micrometre) film thickness shall completely black-out the color of the painted metal surface. 3.4 BRUSHABILITY The primer when hand brushed on painted surfaces
5、shall level with no evidence of brush marks, voids or bare spots to the extent that the painted metal undersurface is visible. The material under test shall be equal to or better than the current approved production material for smoothness when applied under identical conditions. When acrylic lacque
6、r is employed as the color coat, the same procedure is required. 3.5 VISCOSITY (FLTM BI 111-01, #4 Ford Cup) 3.5.1 Normal 40 - 60 s 3.5.2 Aged (2 weeks at 49 +/- 1 C) 40 - 60 s NOT TO BE USED FOR NEW DESIGN2014 12 08 N Status No replacement named L. Sinclair, NAENGINEERING MATERIAL SPECIFICATION ESB
7、-M2G171-AB Page 2 of 5 Copyright 2002, Ford Global Technologies, Inc. 3.6 SOLIDS, min 25 % ASTM D 2834, except heat for 3 h at 102 +/- 3 C in a mechanical convection oven. Save sample for next test.) 3.7 ASH CONTENT (Solids Weight), max 25 % The tolerance for any one supplier shall be +/- 2 % based
8、on the result obtained from his original approved production sample. Test Method: Place the crucible containing the solids residue in a cool muffle furnace. Slowly heat to and maintain at 760 +/- 30 C for 1 h. Cool in a desiccator and weigh. 3.8 WEIGHT/VOLUME The weight tolerance for any one supplie
9、r shall be +/- 0.2 lb/gal (0.024 kg/L) based on the recorded weight of the original approved production sample. (See para 4.3) 3.9 DRYING RATE, max 5 min Test Method: Apply a 0.003 - 0.005 in (76 - 127 micrometre) film of primer to a steel panel coated with white or light blue ESB-M32J100 quality en
10、amel. Determine the drying rate of primer by applying light finger pressure at 23 +/- 2 C. Prior to testing, clean oils from fingers by using denatured ethyl alcohol ESF-M8B12-A. The primer surface may be tacky, however, there shall be no transfer to the finger. Where acrylic lacquer is employed as
11、the color coat, the same procedure is required. Save panel for next test. 3.10 MIGRATION STAIN No Migration Stain Test Method: Expose the painted panel prepared in para 3.9 for a total of 96 h in the fluorescent sunlamp cabinet described in FLTM BO 115-01. 3.11 YIELD STRENGTH, 100 % Cohesive Failure
12、*, min Test as outlined in bonding tape specifications ESB-M3G95-AB/BB. 3.11.1 Normal 6 psi (41.1 kPa) (24 h at 23 +/- 2 C) 3.11.2 Aged 3.11.2.1 2 weeks at 88 +/- 1 C 8 psi (55.2 kPa) 3.11.2.2 500 h, 38 +/- 1 C at 95 - 100 % R.H. 8 psi (55.2 kPa) ENGINEERING MATERIAL SPECIFICATION ESB-M2G171-AB Page
13、 3 of 5 Copyright 2002, Ford Global Technologies, Inc. 3.11.2.3 500 h fluorescent sunlamp (cabinet described in FLTM 8 psi (55.2 kPa) BO 115-01). *Shallow cohesive failure (0.010 in (0.25 mm) minimum) is permissible provided the material residue is uniformly distributed over 100 % of the bonded area
14、. Total adhesion failure to the paint is not permitted and shall be cause for rejection. 3.12 FATIGUE RESISTANCE, min 100 000 cycles (FLTM BU 13-1) No failure after each of the conditioning periods listed below. 3.12.1 Normal 3.12.1.1 After conditioning per FLTM BU 13-1 samples must be tested under
15、a continuous film of water at 23 +/- 2 C. 3.12.1.2 Aged 3.12.1.2.1 2 weeks at 88 +/- 1 C. 3.12.1.2.2 2 weeks water immersion at 23 +/- 2 C. 3.12.1.2.3 2 weeks at 38 +/- 1 C at 95 - 100% R.H. All aged fatigue tests are performed at -29 +/- 1 C. 3.13 DRYING TIME, max 72 h If drying time of primer exce
16、eds the 72 h limit, apply a second coat of primer over the original coat. 3.14 STORAGE STABILITY This adhesion primer must be stored away from all sources of heat such as ovens, direct sunlight, etc. This fluid primer when stored in excess of 3 months must be recirculated or agitated prior to initia
17、l use. The storage period for this adhesion primer shall not exceed 9 months at 49 C maximum. If this adhesion primer is stored at temperatures below 19 C, it must be conditioned at 23 +/- 2 C for 48 h prior to usage. 3.15 QUALITY The material shall be a smooth, homogeneous mixture, free from foreig
18、n materials and properties detrimental to normal production operations. ENGINEERING MATERIAL SPECIFICATION ESB-M2G171-AB Page 4 of 5 Copyright 2002, Ford Global Technologies, Inc. 3.16 NON-INTERCHANGEABILITY OF MATERIALS Only approved elastomeric tape and primers (glass primer ESB-M2G157 and paint p
19、rimer ESB-M2G171) from the same production source shall be used in conjunction with one another. (Vendor “A“ tape with Vendor “A“ glass and paint primers only). 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specifi
20、cation. 4.1 FLASH POINT, min -4 C (ASTM D 56) 4.2 FLAMMABILITY AND/OR TOXICITY This material represents a potential fire and/or health hazard. The Manufacturing Engineering Department shall notify both the Plant Security and the Safety Units of its presence in the Plant to assure that proper fire an
21、d/or health precautions are provided. The location in which it is used or stored shall be included in the notifications. 4.3 WEIGHT/VOLUME Material conforming to this specification and found satisfactory in production, ranges from 7 - 8 lb/gal (0.84 - 0.96 kg/L). 4.4 SUPPLIERS IDENTIFICATION ESB-M2G171-AB Protective Treatments Inc. ENGINEERING MATERIAL SPECIFICATION ESB-M2G171-AB Page 5 of 5 Copyright 2002, Ford Global Technologies, Inc.
