1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 04 2016 10 17 Revised See Summary of Revisions S. Short, NA 2014 12 17 Revised Removed A3 L. Sinclair, NA 1995 01 15 NB00E10361355001 Released D. DiGregorio, E. Rezendes Controlled document at www.MATS.com Copyright 2016, Ford Global Tec
2、hnologies, LLC Page 1 of 8 TAPE ADHESIVE, EPOXY BASED, STRUCTURAL, LOW-EXPANDING, WSB-M2G383-A1 HIGH TEMPERATURE HEAT CURING, WELDABLE, FLOW WASH RESISTANT TAPE ADHESIVE, EPOXY BASED, STRUCTURAL, MEDIUM-EXPANDING WSB-M2G383-A2 HIGH TEMPERATURE HEAT CURING, WELDABLE, FLOW WASH RESISTANT 1. SCOPE WSB-
3、M2G383-A1: The material defined by this specification is an epoxy resin base, high temperature heat curing, 0 - 15% expanding, structural weldable tape adhesive. WSB-M2G383-A2: The material defined by this specification is an epoxy resin base, high temperature heat curing, 30 75% expanding, structur
4、al weldable tape adhesive. 2. APPLICATION These specifications were released originally for material used at high temperature curing schedules (minimum metal temperatures of 10 minutes at 170 C) for bonding metal-to-metal body structures on body in white. Optimal adhesion strengths are achieved at 0
5、.8 mm adhesive bondline thicknesses. 3. REQUIREMENTS 3.1 APPROVED SOURCES This specification requires the use of approved sources. Only the sources identified on the Ford Approved Source List (ASL) can be used when this specification is listed on the drawing, CAD file, or other documents. The list o
6、f approved sources is located within Ford at or available externally through a Ford Materials Engineer. 3.2 DIMENSIONS Cross sections/dimensions as specified on the Engineering Drawing. 3.3 SOLIDS 98% min (ASTM D2834, except heat at 100 +/- 2 C for 3 h in a mechanical convection oven) 3.4 ASH (ISO
7、3541, Method A, 760 +/- 30 C, based on solids weight) Ash content for any one supplier shall be +/- 3% based on the recorded ash of their original approved production sample. Refer to para 4.5 for additional information. 3.5 WEIGHT PER VOLUME (ASTM D816) The weight tolerance for any one supplier sha
8、ll be +/- 0.01 kg/L, based on the recorded weight of their original approved production sample. Refer to para 4.4 for additional information. ENGINEERING MATERIAL SPECIFICATION WSB-M2G383-A1/A2 Copyright 2016, Ford Global Technologies, LLC Page 2 of 8 3.6 FLASH POINT 205 C min (ASTM D1310, tag open
9、cup) 3.7 CONE PENETRATION at 25 C (ASTM D217, 150 g total weight) Initial and after material is aged 72 h at 45 +/- 2 C. The core penetration tolerance for any one supplier shall be +/- 2 mm based on the recorded cone penetration of their original approved production sample. Refer to para 5.10 for a
10、dditional information. 3.8 WASH RESISTANCE No evidence of (FLTM BV 116-01, Method B) material wash off or displacement 3.9 WELD ACCEPTANCE Must pass (FLTM BV 109-01, Shunt Method) 3.10 WELD FLAMMABILITY TEST (FLTM BV 114-01) Less than 5% of the welds shall exhibit flame and shall be self-extinguisha
11、ble within 30 seconds. 3.11 ELECTROCOAT COMPATIBILITY Shall not contaminate (FLTM BV 119-01, use current electrocoat primer bath production paints as identified or cause film irregularities by the Materials Engineering Activity) 3.12 VOLUME EXPANSION A1: 5 - 15% (FLTM BV 108-02) A2: 30 - 75% 3.13 AD
12、HESION, COLD IMPACT No cracking or adhesion failure Test Method: Apply a ribbon of sealant material 0.8 x 12.7 x 200 mm to two 0.9 x 300 x 300 mm oily steel panels. Bake one panel to each cure schedule per para 5.3. Position panels in a horizontal attitude during material bake. After bake, condition
13、 panels at 23 +/- 2 C for 1 h minimum. Condition the panels in a mechanical convection oven at 70 +/- 2 C for 7 days. Condition the panels at 23 +/-0 2 C for 1 h. Place panels in the slamming apparatus (FLTM BV 101-02) at - 30 +/- 1 C. Each panel shall be slammed a total of 10 times. 3.14 SHEAR ADHE
14、SION , MPa (SAE J1523, material bondline thickness 0.8 mm, 325 mm2 bond area, material cure per para 5.3, substrates per para 5.2, jaw speed 13 mm/minute) 3.14.1 Normal Condition for 30 minutes at specified temperature prior to test. A1 A2 Test at 23 +/- 2 C, MPa 10 7 Test at 80 +/- 2 C, MPa 6 5 ENG
15、INEERING MATERIAL SPECIFICATION WSB-M2G383-A1/A2 Copyright 2016, Ford Global Technologies, LLC Page 3 of 8 Test at - 30 +/- 1 C, MPa 13 8 3.14.2 Aged, MPa 6 5 Condition for 24 h at 23 +/- 2 C after exposure, then test at 23 +/- 2 C. 3.14.2.1 Two weeks heat age at 90 +/- 2 C 3.14.2.3 Two weeks humidi
16、ty age at 38 +/- 1 C and 98 +/- 2% relative humidity 3.14.2.4 Thermal Cycle - 5 cycles . 4 h at 90 +/- 2 C . 4 h at 38 +/- 1 C and 98 +/- 2% relative humidity . 16 h at - 30 +/- 1 C 3.14.2.5 Corrosion Resistance (CETP 00.00-L-467, 6 weeks) 3.15 PEEL RESISTANCE (T-Peel) 1500 N/m min (ASTM D1876, mate
17、rial cure per para 4.3, substrates per para 4.2) 3.16 WATER TIGHTNESS No water leaks after 1 h Test Method: Use two 75 x 150 mm CRS steel panels. Form one of the panels into the configuration shown in figure 1. Place a 12 x 150 x 1.5 mm strip of material on the 15 mm area of the formed panel. Weld t
18、his panel to the flat panel placing one weld at each end (12 mm from the edge). Immerse the entire fixture into a 50 C constant temperature water bath for 20 minutes. Remove from bath and bake at material cure schedules per para 4.3. The fixture should remain in an upright position (i.e. funnel end
19、up) during the baking process. After bake, condition at 23 +/- 1 C for 1 h. Seal each end of the funnel end of the fixture to form a trough. Place fixture in a vise grip, trough side up. Fill the trough with water at 23 +/- 1 C. Aim a 5 mm diameter air nozzle set at 0.2 MPa line pressure into bottom
20、 of fixture and make lengthwise passes along bondline for 30 seconds. Hold air nozzle approximately 25 mm from bottom of fixture. No air should pass through adhesive material. Allow fixture to sit for 1 h at 23 +/- 1 C while watching for water leaks at bottom of fixture. 3.17 STORAGE STABILITY Mater
21、ial shall be stored below 38 C, away from all sources of heat and sunlight. Under these storage conditions, the minimum shelf life of the material shall be 3 months. The material shall not block, harden or become tacky and must be capable of achieving minimum baked properties as required by this spe
22、cification. When these materials are stored at temperatures below 23 C, they shall be conditioned at room temperature prior to application. Adequate conditioning permits the material to retain its optimum application properties. 3.18 HANDLING May be minimally tacky but must be handleable without lea
23、ving residue on the gloves of the operators. 3.19 FOGGING ENGINEERING MATERIAL SPECIFICATION WSB-M2G383-A1/A2 Copyright 2016, Ford Global Technologies, LLC Page 4 of 8 (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 16 h) Fog Number 60 min Formation of clear film, drople
24、ts or crystals is cause for rejection. 3.20 FUNCTIONAL APPROVAL Materials being evaluated for approval to this specification shall be subjected to a production trial. Functional trial results must be approved by the affected assembly operation and Design Engineering. Results shall be made available
25、to Materials Engineering prior to material approval and release. 3.21 CORROSION RESISTANCE Test Method: Place production material on two 150 x 75 mm steel panels for each substrate per para. 4.2. Place material over a 40 x 10 mm area and cover with an identical steel panel and clamp in position for
26、close contact. Cure one test panel at min bake and one at max bake in a mechanical convection oven per the e-coat requirements per FLTM BV 150-05. Remove the clamps and subject the cured assemblies to 6 weeks of cyclic corrosion exposure per Ford 00.00-L-467 then separate the steel panel assemblies
27、and evaluate: The material shall protect the test panel from corrosion. Disregarding all areas 10 mm from the edges of the material, there shall be no visible corrosion or any lack of adhesion of the material to the substrates or e-coat. ENGINEERING MATERIAL SPECIFICATION WSB-M2G383-A1/A2 Copyright
28、2016, Ford Global Technologies, LLC Page 5 of 8 3.22 TESTING REQUIREMENTS Test Material Approval Functional Trial Annual Every Lot 3.3 Solids (ASTM D2834) X X 3.4 Ash (ISO 3541, Method A) X 3.5 Weight Per Volume (ASTM D 816) X X 3.6 Flash Point (ASTM D1310) X 3.7 Cone Penetration at 25C (ASTM D217)
29、X X 3.8 Wash Resistance (FLTM BV 116-01, Method B) X X 3.10 Weld Flammability Test (FLTM BV 114-01) X X 3.11 Electrocoat Compatibility (FLTM BV 119-01) X 3.12 Volume Expansion (FLTM BV 108-02) X X 3.13 Adhesion, Cold Impact (FLTM BV 101-02) X X 3.14 Shear Adhesion (SAE J1523) X X 3.14.2.5 Corrosion
30、Resistance (CETP 00.00-L-467, 6 weeks) X X 3.15 Peel Resistance (T-Peel) (ASTM D1876) X X 3.16 Water Tightness X X 3.17 Storage Stability X 3.18 Handling X X 3.19 Fogging (SAE J1756) X X 3.20 Functional Approval X X 3.21 Corrosion Resistance X 4. GENERAL INFORMATION The information given below is pr
31、ovided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 4.1 MECHANICAL CONVECTION OVEN The mechanical convection oven(s) used to cure the material shall be capable of achieving 205 C metal tempe
32、rature on body steel (0.9 mm thickness) within 8 - 10 minutes. ENGINEERING MATERIAL SPECIFICATION WSB-M2G383-A1/A2 Copyright 2016, Ford Global Technologies, LLC Page 6 of 8 4.2 SUBSTRATES 4.2.1 CRCL Steel meeting WSB-M1A250-A1: Nominal 0.8 mm thickness, surface precoated with a 0.013 mm wet film of
33、stamping lubricant as specified by the responsible Materials Engineering Activity at Metal Stamping Operations. 4.2.2 Galvanized steel meeting WSB-M1A250-C3-60G60G-EL: Nominal 0.8 mm thickness, surface precoated with a 0.013 mm wet film of stamping lubricant as specified by the responsible Materials
34、 Engineering Activity. 4.3 MATERIAL BAKE SCHEDULES 4.3.1 Minimum: 170 C for 10 minutes metal temperature (20 minutes oven time, min) 4.3.2 Maximum: 205 C for 30 minutes metal temperature (40 minutes oven time, min) 4.4 WEIGHT PER VOLUME 1.4 +/- 0.1 kg/L (ASTM D816) 4.5 ASH 84% (ISO 3541, Method A, 7
35、60 +/- 30 C, based on solids weight) 4.6 IMPACT RESISTANCE A1: 5 N.m, A2: 2 N.m As specified by Body Materials Engineering Activity. Material bondline thickness 0.8 mm, 325 mm2 bond area, material cure schedule per para 4.3. Condition for 30 minutes at specified temperature prior to test. Normal 23
36、+/- 2 C Two weeks heat age at 90 +/- 2 C Two weeks humidity age at 38 +/- 1 C and 98 +/- 2% relative humidity Six weeks of Corrosion Resistance (CETP 00.00-L-467) Thermal Cycle - 5 cycles . 4 h at 90 +/- 2 C . 4 h at 38 +/- 1 C and 98 +/- 2% relative humidity . 16 h at - 30 +/- 1 C 4.7 TENSILE STREN
37、GTH, typical 13 MPa (ASTM D 638M, material cure per para 5.3) 4.8 ELONGATION, typical 3% (ASTM D 638M, material cure per para 5.3) 4.9 MODULUS OF ELASTICITY, typical 480 MPa (ASTM D 638M, material cure per para 5.3) ENGINEERING MATERIAL SPECIFICATION WSB-M2G383-A1/A2 Copyright 2016, Ford Global Tech
38、nologies, LLC Page 7 of 8 4.10 CONE PENETRATION at 25 C 8 - 17 mm (ASTM D217, 150 g total weight) 4.1 APPROVAL OF MATERIALS Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Product Development, and Materials Engineering. The suppl
39、ier shall submit a completed copy of their laboratory test reports, signed by a qualified and authorized representative of the test facility, demonstrating full compliance with all the requirements of the Material Specification. Tested material samples must be available for review upon request and k
40、ept for a minimum of one year. Upon request, the supplier will review the associated quality control documents (Process Failure Mode and Effects Analysis, Control Plans, Certification testing) with Ford. 4.2 SUPPLIERS ONGOING RESPONSIBILITY All materials must be equivalent in all characteristics to
41、the material upon which approval was originally granted. Prior to making any changes to the material originally approved, whether or not such changes affect the materials ability to meet the specification requirements, the supplier shall notify the affected Supplier Technical Assistance (STA), Purch
42、asing, and Materials Engineering activities of the proposed changes (with reasons) by submission of a completed Suppliers Request for Engineering Approval, SREA. For parts and components using Ford Engineering Material Specifications, all samples tested to the specifications for Design Verification
43、(DV), Production Verification (PV) and Production Part Approval Process (PPAP) sign off must be kept until Job 1. 4.3 RESTRICTED SUBSTANCE MANAGEMENT STANDARD Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this document. The restrictions are
44、identified in the Restricted Substance Management Standard WSS-M99P9999-A1 which is updated yearly. It is the suppliers responsibility to comply with this standard on a continuing basis through IMDS and or GMAP reporting. 5. SUMMARY OF REVISIONS 2016 10 17 Added section 3.23 Testing Requirements tab
45、le Changed section 3.22 to reflect update in corrosion testing Replaced BI 123-01 with CETP 00.00-L-467 Removed reference to ASTM B 117 Removed references to APGE Cycles Removed references to A3 and cold flow settling. Updated Fogging requirement Removed WSS-M99P1111-A and added those requirements d
46、irectly to this specification. 2014 12 17 Removed and Inactivated A3 2004 02 20 Para 3.16.2.5, 3.24, 3.24.1, 3.24.2 inserted; para 3.16.2.2 deleted; para 3.22 revised 2003 03 28 Revised Para 3.0 inserted ; Para 3.1, 3.2, 3.3, 3.24, 4 deleted ENGINEERING MATERIAL SPECIFICATION WSB-M2G383-A1/A2 Copyright 2016, Ford Global Technologies, LLC Page 8 of 8
