1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2011 01 04 Revised See summary of Revisions W. Janitschke 2009 01 22 Revised See summary of Revisions M. Mehandru, W. Janitschke 2000 08 17 Activated M. Black Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 1
2、 of 8 ADHESIVE, MOISTURE CURING URETHANE, ONE COMPONENT, WSS-M2G316-B5 PRIMERLESS CLEARCOAT PAINT, STANDARD FIX, PUMPABLE, AMBIENT APPLIED 1. SCOPE The material defined by these specifications is a one component moisture curing urethane adhesive with a standard fix behavior, which is primerless to c
3、learcoat paint chemistries. 2. APPLICATION These specifications were released originally for material used in conjunction with a one or two stage glass priming operation (primers identified per para 4) to bond glass windshields, glass rear windows and quarter windows to painted metal surfaces. This
4、material will also bond primerless to e-coated surfaces that are contaminate free and can also be used in conjunction with metal flange primers. 2.1 MANUFACTURING PROCESS RECOMMENDATION These adhesives are moisture sensitive and require special handling for manual and automated process. Approved sup
5、pliers are responsible for maintaining the accuracy and relevancy of these process parameters (in their Process Standard). Approved suppliers must submit any changes to these process parameters in a timely manner (within 30 days) for review and approval by Materials Engineering, Vehicle Operations,
6、and Product Development Engineer. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 UNCURED ADHESIVE PROPERTIES 3.2.1. VISCOSITY at 23 C FLTM BV 10
7、3-01, 4 bar line pressure, nozzle 4 mm ID, conditioning time up to measurement 30 Min at test Temperature 3.2.1.1 As received 9 30 g/minute 3.2.1.2 After Aging, max 10 30 g/minute (336 h at 30 +/- 2 C) Final approval of a specific materials viscosity for production shipment shall be made by the affe
8、cted manufacturing activity. In all cases the materials viscosity has to be in the specification limits. The material shall meet all requirements of this specification. ENGINEERING MATERIAL SPECIFICATION WSS-M2G316-B5 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page
9、 2 of 8 3.2.2. Rheology (SAE J1524, cone and plate rotational rheometer with 20 mm diameter parallel plates, 1000 micron gap, measure mode CR (control rate) table, steady stay, up; control rate: 0.0375 s-1 2.0 s-1; Temperature equilibrium time: 300 s (use of cover is required); delay time: 4s; integ
10、ration time: 2s; measure time: 120s; data points: 20; evaluate material at a shear rate of 0.2s-1,report material batch/lot number, identify rheometer make and model, for each test condition report viscosity and submit plots for viscosity vs shear rate. 3.2.2.1 Initial (as received) Test at 23 +/- 1
11、 C Test at application temperature +/- 2 C Test over range 10 to 50 C at increments of 10 C 3.2.2.2 Aged (Age then test at 23 C and application temperature) 7 days at 40 +/- 1 C 90 days at 32 +/- 1 C The rheology variation for any one supplier shall be +/- 20%, based on the recorded rheology of the
12、original approved production sample. The flow curves established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce flow curves that correspond to the reference. All samples shall produce flow diagra
13、ms including viscoelasticity established by rotational test equipment to identify characteristic of material. Final approval of material rheology for production shipments shall be made by the affected manufacturing activity. In all cases, the rheology shall be within the limits as identified on the
14、material control plan. 3.2.3 Solids, min 98% (ASTM D 2834, except heat for 3 h at 100 +/- 3 C in a mechanical convection oven or FLTM BV 150-10) 3.2.4 Ash, based on solids weight, max 21% (ASTM D 482, or FLTM BV 150-10) 3.2.5 Weight per Volume (ASTM D 816) The weight tolerance for any one supplier s
15、hall be +/- 0.02 kg/L based on the weight of the original approved production sample. Reference paragraph 4.3. ENGINEERING MATERIAL SPECIFICATION WSS-M2G316-B5 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 8 3.2.6 Sag, max 4 mm Test Method: . Apply a 76 mm l
16、ong right triangular shaped bead of material 6 mm wide at the base and 15 mm high on a glass or steel panel. . Permit the panel to air dry for 30 minutes at R.T. in a plane 60 angle from the horizontal. Measure the sag. 3.2.7 Sensitivity to Alcohol CAUTION: Slight traces of alcohol will inhibit the
17、cure of this adhesive. The use of alcohol or alcohol containing solvents is prohibited for cleanup or other uses. 3.2.8 Storage Stability (From date of receipt at Ford Motor Company) Shall be stored at ambient room temperature below 35 C, away from all sources of heat, such as ovens, direct sunlight
18、, etc. Shall not be stored outside. Under these storage conditions, the max shelf life to the material, from date of shipment from the supplier, shall be 4 months stored in close containers. The supplier must label each container to indicate the expiration date of the material, and production usage
19、beyond the expiration date is not permitted. When stored at temperatures below 23 C, it must be conditioned at R.T. for 72 h prior to use. 3.2.9 Odor Max. Rating 3 (FLTM BO 131-03), cured material per 7 days at RT 3.2.10 Fogging Test (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test co
20、nditioning 1 and 16 hrs.) Fog Number, min 90 Any fog film present shall be examined for the formation of droplets or coalescence into a clear film. Such conditions, if present, shall be cause for rejection. Cured samples shall be tested. 3.2.11 Quality Shall be a smooth homogeneous mixture free from
21、 foreign materials and properties detrimental to normal production operation. ENGINEERING MATERIAL SPECIFICATION WSS-M2G316-B5 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 8 3.2.12 Non-Interchangeability of Materials Only approved materials, all from the sa
22、me production (supplier) source, shall be used in conjunction with one another. 3.2.13 Slippage, max 10 mm Test Method: . Apply 2 parallel beads (approx. 12 g in total; triangle form, 9 mm base and 13 mm height) of material under test to a 125 x 75 x 4 mm primed float glass specimen and check for co
23、rrect weight of applied bead of adhesive. . For application temperature of material under test see Engineering Material specification. . 2 min after application assemble with a 200 x 200 primed glass plate to a bead thickness of 4mm and fix in that position for 10 s. . Remove distance spacers and tu
24、rn assembly to vertical position and fix one glass plate , add a weight to lower glass specimen to a total weight force of 8 N and measure the slippage after 2 h. . Record all details of measurements and material under test. 3.3 CURE RATE PROPERTIES 3.3.1 Tack Free A 150 mm long and 6 mm diameter be
25、ad shall be tack free in 30 minutes. Apply beads of adhesive to a clean float glass panel. Touch the bead gently using a cotton swab for tack free test. Cut the bead using a sharp razor blade for curing test. 3.3.2 Sandwich Tensile Pull Strength Versus Cure Time, min Cure Time Sandwich Tensile Pull
26、Strength 1.5 hours 150 kPa 3.0 hours 400 kPa 6.0 hours 1.2 MPa 24.0 hours 2.5 MPa 72.0 hours 2.5 MPa ENGINEERING MATERIAL SPECIFICATION WSS-M2G316-B5 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 8 Test Method: Sandwich Tensile Pull Strength . Prepare a mini
27、mum of 3 sandwich assemblies for each cure time tensile pull strength test as per Figure 1. . Brush apply glass primer or primers onto bottom 6.4 mm of each glass coupon according to the process standard of the primer or primers. Allow primer to air dry. Condition primer at R.T. for 5 minutes min ch
28、eck the process standard for the max open time. . Apply a 50 mm long by 6.4 mm diameter bead of adhesive to the primed glass, as illustrated in Figure 1. Within 5 minutes after adhesive application, position the adhesive on the glass coupon in contact with the painted metal surface (electrocoated pa
29、nel may also be used). Maintain a 5 mm nominal adhesive bondline thickness. . Condition assemblies same at R.T. for various cure times as indicated above. . Determine the adhesion in a tensile machine having a jaw separation rate of 25 mm/minutes. Report strength value and mode of failure. 3.4 CURED
30、 ADHESIVE PROPERTIES 3.4.1 Flexibility (ASTM F 147, except condition at 150 mm long x 25 mm wide x 2.5 mm thick sample for 120 h at R.T., and then 4 h at the following temperatures) . 23 +/- 2 C No crack on 3 mm mandrel . -29 +/- 1 C No crack on 25 mm mandrel 3.4.2 Hardness, Durometer “A“ 65 +/- 10
31、Points (ASTM D 2240) Test Method: Flow enough material into a container (such as an ointment tin) to give a cured section 5 mm thick. Cure for 72 h at R.T. and check the instantaneous hardness. 3.4.3 Tensile Properties (ASTM D 412, except where noted, use Type C die and pull at 50 cm/minute, cure on
32、 release paper between 3 mm aluminum panels for 7 days at 23 +/- 2 C and 50 +/- 5% relative humidity or as recommended by the material manufacturer to achieve full cure. Condition at 23 +/- 2 C for 24 h, report at 23 +/- 2 C, use extensometer or strain gage, test at -40, 23, 50 and 80 +/- 2 C) Tensi
33、le at break at -40 C, 23C and 50 C, min 6.9 MPa Tensile at break at 80 C, min 5.0 MPa ENGINEERING MATERIAL SPECIFICATION WSS-M2G316-B5 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 6 of 8 Elongation at break, min 200% Poissons Ratio 0.25 0.50 Modulus of elasticit
34、y (ASTM D 4065 or equiv. 10 MPa, min Report the value at 23 +/- 2 C, and 1 Hz) (Dynamic Mechanical Analyzer tensile compression mode) Frequency Sweep 0.1 to 100 Hz, fixed stress of 0.5% at 23 +/- 2 C. Temperature Sweep: -40 C to 100C, set heating rate to 2 C/min; fixed strain of 0.5% at 1 Hz frequen
35、cy. Actual material properties are temperature and formulation dependent. Results are on file with Materials Engineering. 3.5 CURED MATERIAL PERFORMANCE PROPERTIES Parts and/or test samples prepared with materials according to these specifications shall meet all requirements of performance specifica
36、tions WSS-M11P57-A5. 3.6 LINE TRIAL The Requirements defined in this specification are based upon laboratory coupon testing and define the minimum acceptance criteria for adhesive performance. Prior to use, the adhesive must be evaluated under the production parameters of the relevant production lin
37、e. The choice of substrates, plant processing conditions and specific design application may affect adhesive performance. Compliance with this specification does not guarantee the adhesive will function for all potential applications on a vehicle. Therefore materials being evaluated for approval to
38、this specification shall be subjected to a production trial. Functional trial results must be approved by the affected assembly operation. Results shall be made available to Materials Engineering prior to material approval and release. 4. GENERAL INFORMATION The information given below is provided f
39、or clarification and assistance in meeting the requirements of this specification. 4.1 RELATED MATERIALS AND PROCEDURE 4.1.1 Glass Primer Wipe not required for FOE WSS-M5B280-C5 4.1.2 Adhesion Primer, Glass WSS-M2G314-B2 (Blackout primer) 4.2 SUBSTRATES 4.2.1 Metal Substrate: Prior to releasing to t
40、his specification, the adhesive must be tested to painted steel panels of nominal thickness 0.80 mm. The substrate must be painted with all of the production paint systems that are currently being used by the assembly plant. ENGINEERING MATERIAL SPECIFICATION WSS-M2G316-B5 Printed copies are uncontr
41、olled Copyright 2010, Ford Global Technologies, LLC Page 7 of 8 4.2.2 Float Glass: 5.6 mm nominal thickness. 4.2.3 Float Glass with WSS-M99P6-C1/C2 Ceramic Coating: 4.3 WEIGHT PER VOLUME DENSITY, Typical 1.15 - 1.30 kg/L (Refer to para 3.2.5) 5. SUMMARY OF REVISIONS 2011 01 04 1.Updated 3.2 2. Updat
42、ed 3.4.3 at 80C 2009 01 22 1. Updated 2.1 and deleted Table 1. 2. Revised Storage Stability. 3. Added 3.5 Cured Material Performance Properties. 4. Revised 4.1 to reflect the new specification for Glass primers. 5. Title and Scope updated 6. Changed 3.2.1 from Rheology to Viscosity, test method adde
43、d 7. Added FLTM to 3.2.2 Solid and 3.2.3 Ash 8. Deleted 3.2.4 Weight per Volume 9. Updated 3.2.8 Odor and 3.2.9 Fogging 10. Added tests 3.2.12 Slippage 11. Deleted 3.4.2 Tear Strength ENGINEERING MATERIAL SPECIFICATION WSS-M2G316-B5 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 8 of 8 FIGURE 1 Top View Side View 6.4 mm 150 mm 5 mm Thick Glass 50 mm x 6.4 mm Bond Area 5 mm thick Metal50 mm
