1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 06 12 Revised Para 3.0 inserted; para 3.1, 3.2, 3.3, 3.17, 3.18 and 4 deleted Para 3.7, 3.10 and 3.13 revised; Corrected numbering 3.12 A. Reaume 1998 05 12 Activated Add -A8, Rev. para 2, 3, Title, Add. para 5.1 T. Koch 1991 11 05 NEO1E1
2、01 Released E. J. Duda Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 8 SEALANT, SILICONE RUBBER, ACETOXY CURED, WSE-M4G323-A1 LOW VISCOSITY SEALANT, SILICONE RUBBER, ACETOXY CURED, WSE-M4G323-A2 MEDIUM VISCOSITY SEALANT, SILICONE RUBBER, ACETOXY CURED, WSE-M
3、4G323-A3 HIGH VISCOSITY SEALANT, SILICONE RUBBER, OXIME CURED, WSE-M4G323-A4 LOW VISCOSITY SEALANT, SILICONE RUBBER, OXIME CURED, WSE-M4G323-A5 HIGH VISCOSITY SEALANT, SILICONE RUBBER, OXIME CURED, WSE-M4G323-A6 VERY HIGH VISCOSITY SEALANT, SILICONE RUBBER, OXIME CURED, WSS-M4G323-A7 VERY HIGH VISCO
4、SITY SEALANT, SILICONE RUBBER, OXIME CURED, WSS-M4G323-A8 HIGH VISCOSITY 1. SCOPE The material defined by these specifications is an one component thixotropic spreadable silicone rubber based adhesive/sealant. It is capable of being pumped, metered and distributed into a gasket profile. These materi
5、als are ready for use as received, requiring no catalyst or heat cure. 2. APPLICATION These specifications were released originally for materials used for formed-in-place gaskets such as engine oil pan, rocker cover, cylinder block or oil pump, where high operating temperatures (up to 204 C) may be
6、encountered. WSE-M4G323- A1 Low viscosity, low modulus acetoxy cured material with medium assembly time and very good adhesion and joint movement on clean and oiled panels of steel to aluminum and aluminum to aluminum. A2 Medium viscosity, medium modulus acetoxy cured material with good blowout resi
7、stance, medium assembly time, good oil and coolant resistance. ENGINEERING MATERIAL SPECIFICATIONWSE-M4G323-A1/A6 WSS-M4G323-A7/A8 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 8 A3 High viscosity, high modulus acetoxy cured material with excellent blowout r
8、esistance, short assembly time, good high temperature resistance with excellent adhesion and joint movement on clean and oiled aluminum to aluminum. A4 Low viscosity, low modulus oxime cured material with no blowout resistance and long assembly time and good adhesion between steel to aluminum and al
9、uminum to aluminum on clean and oiled panels. This material has very poor resistance to coolant/water and must not be used for these applications. A5 Very high viscosity, low modulus oxime cured material with very good blowout resistance and long assembly time, good oil resistance and excellent join
10、t movement on clean and oiled steel to aluminum and aluminum to aluminum panels. This material has very poor resistance to coolant/water and must not be used for these applications. A6 Very high viscosity, medium modulus, oxime cured material with excellent blowout resistance and long assembly time,
11、 good oil resistance and excellent adhesion and joint movement on oiled steel and aluminum panels. This material has very poor resistance to coolant/water and must not be used for these applications. A7 Very high viscosity, medium modulus, oxime cured material with excellent blowout resistance and v
12、ery long assembly time, good oil resistance and excellent adhesion and joint movement on oiled steel and aluminum panels. This material has very poor resistance to coolant/water and must not be used for these applications. A8 High viscosity, high modulus, oxime cured material with very good blowout
13、resistance and low assembly time, dependable oil resistance, good adhesion and joint movement on oiled steel and aluminum panels. This material has good resistance to coolant/ water and is suitable for use in automatic transmissions. 3. REQUIREMENTS Material specification requirements are to be used
14、 for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 SPECIFIC GRAVITY (ASTM D 792, Method A) A1 A2 A3 A4 A5 A6 A7 A8 1.04- 1.
15、06- 1.06- 1.30- 1.28- 1.30- 1.30- 1.44- 1.09 1.10 1.10 1.37 1.35 1.37 1.37 1.49 ENGINEERING MATERIAL SPECIFICATIONWSE-M4G323-A1/A6 WSS-M4G323-A7/A8 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 8 3.5 EXTRUSION RATE, s A1 A2 A3 A4 A5 A6 A7 A8 40- 200- 320- 30
16、- 700- 1400- 1400- 500- 150 390 900 150 1700 2400 2600 1600 Test Method: Time to dispense 50 cc through a stainless steel nozzle with a 3.2 +/- 0.13 mm orifice and 50 +/- 0.13 mm in length at 448 kPa pressure using a #250 Semco gun and 170 g PE cartridge assembly. Start the test by dispensing 10 g a
17、nd then timing the next 50 cc. To convert from g to cc, multiply by specific gravity. 3.6 BLOW RESISTANCE, s, min (FLTM BV 126-01, 14 kPa pressure, cured for 30 minutes at 23 +/- 2 C, 50% R.H., 1 mm and 1.5 mm gap, 4.0 mm flange) Gap, 1 mm 15 120 300 0 100 100 110 80 Gap, 1.5 mm 10 20 300 0 60 100 1
18、10 20 Take 60 s to assemble and test 30 minutes after assembly. 3.7 CURE RATE (Assembly Time), minutes, range (FLTM BV 127-02 or FLTM BV 125-01, max time at which both surfaces have a continuous strip of sealant at 50 +/- 5% relative humidity and 23 +/- 2 C) 5 18 5 10 2 14 12 30 5 20 7 24 120 300 5
19、- 20 3.8 TOTAL SILICONE VOLATILES, max (FLTM AV 102-01, cured 24 h at 23 +/- 2 C and 50 +/- 5% R.H.) 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 ENGINEERING MATERIAL SPECIFICATIONWSE-M4G323-A1/A6 WSS-M4G323-A7/A8 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 8 3.9 CURED
20、 PROPERTIES Properties determined after curing the sealant for 168 +/- 2 h at 23 +/- 2 C and 50 +/- 5% relative humidity on a 2.0 mm cross section. Original Tensile Strength, MPa, min (ASTM D 412, Die C) A1 A2 A3 A4 A5 A6 A7 A8 2.0 2.6 2.5 1.8 1.2 1.7 1.8 2.8 Elongation, %, min 300 300 210 400 350 4
21、00 450 120 Modulus, 100%, range 0.5- 0.9- 1.1- 0.4- 0.4- 0.5 0.5 1.9- 1.2 1.6 1.7 1.1 1.1 min. min. 2.6 Durometer Hardness, range (ASTM D 2240, Shore A, instantaneous) 26 38 38 48 44 56 31 45 27 40 31 46 35 48 45 - 65 3.10 OIL IMMERSION (ASTM D 471, 168 h at 150 +/- 2 C, IRM 902 oil, after cure per
22、para 3.9) Tensile Strength Change, %, max - 24 - 15 - 25 - 20 - 35 - 28 - 28 - 30 Elongation Change, %, max - 22 - 18 - 20 - 28 - 10 - 28 - 30 + 50 Durometer Change, max - 10 -14 - 12 - 16 - 10 - 15 - 14 - 10 Volume Change, %, max + 12 + 14 + 13 + 9 - 13 + 14 + 12 + 20 ENGINEERING MATERIAL SPECIFICA
23、TIONWSE-M4G323-A1/A6 WSS-M4G323-A7/A8 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 5 of 8 3.11 HIGH TEMPERATURE RESISTANCE (ASTM D 573, 168 h at 175 +/- 2 C, after proper cure per para 3.9) Tensile Strength Change, %, max A1 A2 A3 A4 A5 A6 A7 A8 - 20 - 8 - 8 - 1
24、0 - 10 + 30 to + 100 + 50 - 10 Elongation Change, %, max - 25 - 35 - 10 - 45 - 15 - 60 - 50 - 50 Durometer Change, max +/- 10 +/- 8 +/- 10 +/- 10 - 5 to + 18 + 30 + 10 + 10 3.12 IMMERSION IN THREE CURRENTLY APPROVED TRANSMISSION FLUIDS OF AFFECTED MODEL YEAR (ISO 1817/ASTM D 471, 168 h at 150 +/- 2
25、C, see para 5.1) 3.12.1 Hardness Change, points, max - 30 3.12.2 Tensile Strength Change, %, max - 35 3.12.3 Elongation Change, %, max + 50 3.12.4 Volume Change, %, max + 45 3.12.5 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.13 LAP SHEAR ADHESION let flash for
26、 15 minutes. 2024 Alclad Aluminum to 1010 Steel . Adhesion, MPa, min 0.5 0.4 0.3 1.0 0.3 1.0 1.0 0.6 . Joint Movement, mm, min 2.0 2.0 1.0 6.0 3.0 6.0 6.0 1.1 2024 Alclad Aluminum to Aluminum . Adhesion, MPa, min 0.7 0.4 0.6 1.2 0.9 1.2 1.2 0.7 . Joint Movement, mm, min 3.0 3.0 2.5 6.0 3.0 6.0 6.0 1
27、.1 ENGINEERING MATERIAL SPECIFICATIONWSE-M4G323-A1/A6 WSS-M4G323-A7/A8 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 7 of 8 3.13.2 Immersion in IRM 902 (168 h at 150 +/- 2 C) CLEAN PANELS 2024 Alclad Aluminum to 1010 Steel . Adhesion, MPa, min A1 A2 A3 A4 A5 A6 A
28、7 A8 0.8 0.4 0.5 0.9 0.3 0.8 1.4 0.9 . Joint Movement, mm, min 3.0 3.0 3.0 4.5 3.0 4.5 4.5 1.6 2024 Alclad Aluminum to Aluminum . Adhesion, MPa, min 0.8 0.7 1.2 1.0 0.4 0.7 1.4 1.5 . Joint Movement, mm, min 4.0 4.0 3.0 4.5 3.0 4.5 4.5 2.3 OILED PANELS: Dip panels in a solution of 5% ASTM 902 oil in
29、toluene; let flash for 15 minutes. 2024 Alclad Aluminum to 1010 Steel . Adhesion, MPa, min 0.5 0.2 0.3 0.9 0.3 0.7 0.9 1.0 . Joint Movement, mm, min 2.5 2.5 1.0 4.8 3.0 4.5 4.5 1.7 2024 Alclad Aluminum to Aluminum . Adhesion, MPa, min 1.0 0.7 1.0 0.9 0.3 0.7 0.7 1.4 . Joint Movement, mm, min 3.0 4.5
30、 3.0 5.0 3.0 4.5 4.8 2.1 ENGINEERING MATERIAL SPECIFICATIONWSE-M4G323-A1/A6 WSS-M4G323-A7/A8 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 8 of 8 3.14 STORAGE STABILITY, min 12 months (From date of receipt at Ford Motor Company) When stored in sealed unopened con
31、tainers out of direct sunlight at ambient temperatures between 10 and 27 C. The supplier must label each container to indicate expiration date of the material and production usage beyond expiration date is not permitted. Containers should always be kept sealed when not in use. After opening, a plug
32、of cured material may form across the container opening during storage. This may easily be removed and does not affect the remaining contents. 3.15 QUALITY The material shall be of uniform quality, free from foreign materials and properties detrimental to normal production use. 3.16 NON-INTERCHANGEA
33、BILITY OF MATERIALS Only approved materials all from the same production source shall be used in conjunction with one another. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 5.1 For information on c
34、urrently approved service fluids and other material required for use in these specifications contact: Materials Laboratory GB-15/GM-D01-D Transmission & Axle Engineering Car Engineering Materials & Fasteners Engineering Ford Motor Co. Ltd Ford Motor Company Research & Engineering Center 36200 Plymouth Road Laindon, Basildon Box DME-14 Essex SS15 6EE, England Livonia, MI 48151, U.S.A. Product Engineering Office Ford Motor Co. of Australia Princes Highway, Norlane Victoria 3214, Australia
