1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 03 25 N-STATUS Replaced by WSS-M99P32-C J. Williams, EU 2006 03 13 Activated A. Reaume Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 8 PERFORMANCE, ACOUSTICAL AND THERMAL ASSEMBLIES WSS-M99P32-B N
2、OT TO BE USED FOR NEW DESIGN 1. SCOPE This specification defines the minimum durability requirements of all thermal, foam gasket and sound absorption applications, where various materials are combined to provide an assembly having thermal and/or acoustical (sound absorption/barrier) and/or functiona
3、l features. This includes passenger, loadspace, engine compartment and underbody thermal and/or acoustical (sound absorbing/barrier/ insulation) parts. Adhesive backed products must meet WSS-M11P62-A. 2. APPLICATION This specification was released originally for materials used as interior, luggage c
4、ompartment, engine compartment and underbody thermal and/or sound absorbing insulators. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to
5、the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 FINISHED PART REQUIREMENTS In addition to the following minimum requirements, production assemblies must withstand normal handling during shipping, installation, use and service, without tearing, breaking, or permanent
6、ly deforming. Specific sampling areas may be required, these will be highlighted on the Engineering Drawing. 3.3 APPEARANCE (FLTM BI 109-01) All appearance properties of exposed materials shall meet the requirements of the relevant System Engineering Department. 3.4 ENVIRONMENTAL TESTING The assembl
7、y, after the test, shall exhibit no visible and objectionable appearance such as: . Wrinkling . Distortion . Blistering . Delamination . Expansion, shrinkage or warpage which will interfere with normal function or cause objectionable and unsightly gaps. In addition, any objectionable appearance obse
8、rved during the test should be reported. ENGINEERING MATERIAL SPECIFICATIONWSS-M99P32-B Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 8 Test Method: Conduct with the NVH or approved surrogate assembly mounted on an actual or simulated production support foun
9、dation with the approved retention methods. The assemblies shall be subjected to the environmental cycles specified in paragraph 3.4.1 and 3.4.2. Automated programmable test cycles based on the listed test conditions may be accepted by prior agreement with the affected Materials Engineering Activity
10、. Ramp speed 1 to 5 C per minute (record actual ramp speed on data sheet). 3.4.1 Applicable to Interior Parts . 5 h at -35 +/- 2 C . 30 minutes at 23 +/- 2 C and 50% R.H. . 5 h at 80 +/- 2 C . 30 minutes at 23 +/- 2 C and 50% R.H. . 2 h at 50 +/- 2 C and 95 +/- 5% R.H. . 30 minutes at 23 +/- 2 C and
11、 50 % R.H. . 5 h at -35 +/- 2 C . 30 minutes at 23 +/- 2 C and 50% R.H. . 5 h at 80 +/- 2 C 3.4.2 Applicable to Engine/Underbody Parts . 5 h at -35 +/- 2 C . 48 h at 38 +/- 2 C and 95% R.H. . 48 h at 150 +/- 2 C . 5 h at -35 +/- 2 C . 48 h at 38 +/- 2 C and 95% R.H. . 48 h at 150 +/- 2 C 3.4.3 Long
12、Term Heat Exposure Test one previously unexposed assembly: 3.4.3.1 For interior parts 7 days at 80 +/- 2 C 3.4.3.2 For engine/underbody parts 7 days at 150 +/- 2 C 3.4.3.3 For high temperature applications 7 days at 200 +/- 2 C Insulation materials shall not crack, warp, flame, glow, smolder, degrad
13、e, delaminate, develop an objectionable odor or exhibit any exothermic reaction when tested at the maximum vehicle use temperature as determined from applicable vehicle tests. ENGINEERING MATERIAL SPECIFICATIONWSS-M99P32-B Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC
14、 Page 3 of 8 3.5 PHYSICAL PROPERTIES 3.5.1 Tensile Strength (ASTM D 5034) Specimens to be cut from flat areas of the finished part. Speed of testing 25 mm/minute; distance between clamps at beginning of test should be 100 mm. 3.5.1.1 Original (N/cm2), min 10 Specific values to be quoted on the Engin
15、eering Drawing. 3.5.1.2 Change After Humidity Aging,%, max -30 (48 h at 38 +/- 2 C and 95 +/- 2% R.H.; 1 h at room temperature) 3.5.1.3 Change After Heat Aging, %, max -30 (para. 3.4.3) 3.5.1.4 Change After Immersion In Water, %, max -30 (48 h in distilled water at room temperature) 3.5.2 Compressio
16、n and Recovery (For padding and foam gasket materials only) (SAE J1352 or equivalent) Shall not compress more than 70% of the original thickness, after loading with 35 kg. Upon removing the load, the material shall recover at least 65% of the compressed distance. 3.5.3 Compression Set, % max 50 (For
17、 foam materials only) (ISO 1856, Method A/ASTM D 3574, Test D) 3.5.4 Tear Strength (N/cm), min 50 (ASTM D 5733 for non-woven materials) (ASTM D 3574, Test F, for foam materials) Specimens to be cut from flat areas of finished parts. ENGINEERING MATERIAL SPECIFICATIONWSS-M99P32-B Printed copies are u
18、ncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 8 3.5.5 Peel Strength (Laminates only) (For interior materials only) (FLTM BN 151-05) Samples must meet at least one of the following requirements: . Achieve peel strength value of 9 N/50 mm, min . Adhesion of the cover material sha
19、ll exceed the cohesive strength of the fabric substrate. 3.5.6 Peel Strength (Laminates only) (FLTM BN 151-05, 30 minute immersion) Samples are cut to 250 mm lengths. Each sample tested is subjected to one of the following fluids quoted in 3.6. Samples must meet at least one of the following require
20、ments: . Achieve peel strength value of 9 N/50 mm, min . Adhesion of the cover material shall exceed the cohesive strength of the fabric substrate. 3.6 RESISTANCE OF INSULATORS TO VARIOUS TEST REAGENTS (ASTM D 896) The finished or surrogate part shall not dissolve, exhibit tackiness or delaminate wh
21、en immersed in each of the following test reagents for a 4 hour period. Use a separate specimen for each test reagent. Test Reagents: 1. Deionized Water 2. 3% Salt Solution 3. Oil No. 1 of ASTM D 471* 4. Brake fluid FMVSS DOT 3 or FMVSS DOT 5.1* 5. Sulfuric acid (2.5% by weight in distilled water) 6
22、. Long life coolant WSS-M97B51-A1 (50% by weight in distilled water)* 7. Transmission fluid WSS-M2C200-C* 8. Window washer solvent 50% Methanol or Ethanol or Isopropyl Alcohol* 9. Power Steering Fluid WSA-M2C195-A*Or currently released equivalent fluid. 3.7 MOISTURE ABSORPTION, %, max 30 1. Cut a 20
23、0 x 200 mm specimen from the part to be tested and seal any cut edges, e.g. with wax. 2. Weigh the specimen (200 x 200) nearest to 0.1 g. 3. Condition part/section in suspended position at 38 +/- 2 C and 95 +/- 2% R.H. for 24 h. 4. After 1 h at room temperature weigh the part/section nearest to 0.1
24、g and determine increase of weight in percentage based on the original weight. ENGINEERING MATERIAL SPECIFICATIONWSS-M99P32-B Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 8 3.8 LOW TEMPERATURE FLEXIBILITY No sign of cracking or delamination of the foil lami
25、nate after the sleeve is conditioned at -35 C for 5 h, and then wrapped around a mandrel which is 2 times the nominal diameter of the sleeve or a 12.7 mm diameter mandrel (for flat laminates). Sample length for the test is 300 mm. 3.9 THERMAL PROPERTIES The surface of the part/material being protect
26、ed shall not reach its maximum use temperature when tested at the maximum vehicle use temperature as determined from applicable vehicle tests. 3.9.1 Thermal Conductivity, (W/M/K) Report (ASTM C 518, C 177) 3.9.2 Floor Heat Insulation, max 60 C on the (Interior acoustical and thermal insulators) top
27、surface of (SAE J1361, 2h) floor systems Test at the maximum vehicle floor pan temperature (without throw in mats) as determined from floor heat mapping studies conducted by the Ford heat management team. The heat resistance for any other application would be as specified on the Engineering Drawing.
28、 3.9.3 Thermal Sleeve Heat Insulation (SAE J2302) 3.10 ODOR, max Rating 2 (FLTM BO 131-01) 3.11 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 and 16 h) Fog Number, min 70 No formation of clear film, droplets or crystals. 3.12 RESISTANCE TO MILDEW The material
29、 shall exhibit no visible evidence of mildew growth and/or objectionable odor after 7 days exposure in a humidity cabinet maintained at 98 +/- 2% relative humidity and 38 +/- 2 C. ENGINEERING MATERIAL SPECIFICATIONWSS-M99P32-B Printed copies are uncontrolled Copyright 2010, Ford Global Technologies,
30、 LLC Page 6 of 8 3.13 FLAMMABILITY (SAE J369/ISO 3795, Flammability is affected by the material thickness and density, conduct testing on full range of material thicknesses and densities on part) 3.13.1 Burn Rate, max 100 mm/minute For engine/underbody components only. 3.13.2 Burn Rate SE 10 seconds
31、 3.13.3 Burn Rate (Test Sample Temp. 150 C) SE 20 seconds The flame must extinguish within the specified time after the flame reaches the first scribed line and must not glow or smolder. In the event that the flame is extinguished before the first scribed line, report as SE, the test would be consid
32、ered a PASS. 3.14 FLAMMABILITY Does not ignite (VDE 0471, Part 2/IEC 695 Part 2-1, Hot wire: 750 C, Flammability is affected by the material thickness and density, conduct testing on full range of material thicknesses and densities on part) For engine/underbody components only. 3.15 CORROSIVENESS TO
33、 STEEL, min Rating 4 (SAE J1389) 3.16 LINE CALL OUT REQUIREMENTS All call out digits shall be specified on the engineering drawing along with the specification number, supplier, product identification and recycle code. Develop the call out using the classification system below. All “as specified“ di
34、gits must be defined in the supplier submission and on the engineering drawing. 3.16.1 First Digit Application Code Letter Sound A1 Heat A2 Sound and Heat A3 Foam gap hider/gasket A4 As specified A5 3.16.2 Second Digit Function Code Letter Reflector F1 Absorber F2 Dampener F3 Seal/gap hider F4 As sp
35、ecified F5 ENGINEERING MATERIAL SPECIFICATIONWSS-M99P32-B Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 7 of 8 3.16.3 Third Digit Use Code Letter Interior U1 Luggage U2 Engine U3 Underbody U4 3.16.4 Fourth Digit Temperature Rating Code Letter 80 C T1 150 C T2 200
36、 C T3 As specified T4 3.16.5 Fifth Digit Thickness, mm Record Or Thickness range, (mm-mm) Record 3.16.6 Sixth Digit Density, kg/m3Record Or Density range, (kg/m3-kg/m3) Record 3.16.7 Seventh Digit Identify each layer in a multilayer part. Use one digit for each substrate starting with the attachment
37、 point on the vehicle outward. For mixtures of two or more materials in one layer put the code letters in parenthesis. For example, the callout for a fiberglass/polyester fleece insulator covered with a polyester scrim would be: (S1S3) S10. Substrate(s) Code Letter Polyester Fleece S1 Polypropylene
38、Fleece S2 Fiberboard S3 Fiberglass S4 Aluminum S5 Polyethylene Foam S6 Polyurethane Foam S7 Melamine Foam S8 Vinyl, Flexible S9 Vinyl, Rigid S10 Polyester Scrim S11 Polypropylene Scrim S12 PE Film S13 EVA S14 Reclaim Fiber S15 Adhesive S16 As specified S17 ENGINEERING MATERIAL SPECIFICATIONWSS-M99P3
39、2-B Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 8 of 8 Table 1 Applicable Test Requirements Shown below are the applicable paragraphs for each acoustical or thermal material application. Test Name Area of Vehicle Interior Luggage Engine Underbody 3.1 Standard R
40、equirements X X X X 3.2 Finished Part Requirements X X X X 3.3 Appearance X X X X 3.4.1 Environmental Cycling, Interior X X 3.4.2 Environmental Cycling, Engine/Underbody X X 3.4.3.1 Long Term Heat Exposure, Interior X X 3.4.3.2 Long Term Heat Exposure, Engine/Underbody X X 3.4.3.3 Long Term Heat Exp
41、osure, High Temperature X X 3.5.1 Tensile Strength X X X X 3.5.2 Compression and Recovery (Padding and Foam Materials Only) X X X X 3.5.3 Compression Set X X X X 3.5.4 Tear Strength X X X X 3.5.5 Peel Strength, Interior X X 3.5.6 Peel Strength, Engine/Underbody X X 3.6 Resistance to Test Reagents X
42、X 3.7 Moisture Absorption X X X X 3.8 Low Temperature Flexibility X X X X 3.9.1 Thermal Conductivity X X X X 3.9.2 Floor Heat Insulation X X 3.9.3 Thermal Sleeve Heat Insulation X X X X 3.10 Odor X X 3.11 Fogging X X 3.12 Resistance to Mildew X X X X 3.13.1 Flammability, Interior X X 3.13.2 Flammability, Engine/Underbody X X 3.13.3 Flammability High Temperature, Engine/Underbody X X 3.14 Flammability, Hot Wire X X 3.15 Corrosiveness to Steel X X X X 3.16 Line Call Out Requirements X X X X
