1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2007 03 16 Revised Inserted 3.0; Deleted 3.17 & 4 1994 12 16 Revised Revised and Retyped, was 12 pages 1981 02 16 Released SM/EQ 8728 TP Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 1 of 4 BITUMEN FIBER B
2、OARD, SELF-ADHESIVE, PAINT OVEN RESISTANT SK-M99G9525-A 1. SCOPE The material defined by this specification is a self-adhesive, heat resistant (paint oven temperature) fiber board with high bitumen content for structure borne noise damping. The adhesive side is covered by release paper. 2. APPLICATI
3、ON This material was originally released for application on EC respectively spray primer coated door inner panels before paint oven curing. 3. REQUIREMENTS The material shall be conditioned for a minimum of 24 hours at 23 +/- 2 C and 50 +/- 5% relative humidity prior to test. 3.0 STANDARD REQUIREMEN
4、TS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 COLOR Black or as specified on Engineering drawing 3.2 THICKNESS 2.5 +/- 0.2 mm (Slide gauge) 3.3 DENSITY, max 1.1 g/cm3 (Without releas
5、e paper but with self-adhesive coating) 3.4 ASH, max 15% (FLTM BV 150-10) 3.5 WATER ABSORPTION, max 30% (SAE J 315, method B, without release paper but with self-adhesive coating) 3.6 BITUMEN CONTENT, min 50% Test Method: 1) Cut 50 x 10 mm specimens from the finished part, remove release paper, dete
6、rmine weight and extract the bitumen content in a Soxhlet extraction apparatus with carbon tetrachloride. Continue extraction until solvent in tube is colorless. 2) Dry the bitumen-free sample in a mechanical convection oven at 105 +/- 2 C for 2 hours. Cool in desiccator and reweigh. ENGINEERING MAT
7、ERIAL SPECIFICATION SK-M99G9525-A Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 2 of 4 3.7 HEAT STABILITY After heat curing the material shall fit tightly to panel without evidence of blisters, cracks, displacement, or loss of adhesion. Test Method: 1) Apply 280
8、x 280 mm pieces of test material to 300 x 300 x 1.5 +/- 0.1 mm test panels prepared according to FLTM BI 120-01, A and C (EC-coated), with the tacky side facing to the panel and press together evenly using a roller according to ASTM D 1000. 2) Expose test specimens in vertical position to heat accor
9、ding to FLTM BV 150-05, Table 3 (use separate specimens for each curing cycle): a) minimum curing cycle b) maximum curing cycle 3) Examine after cooling at room temperature. 3.8 ADHESION AFTER HEAT AGEING No chipping, no loss of adhesion Test Method: 1) Specimen preparation according to 3.7, test me
10、thod, section 1 and 2. 2) Expose specimens for 14 days at 80 +/- 2 C. 3) After 2 hours at room temperature test according to FLTM BV 151-01, Method A, clause 5 to 8. Load A, at room temperature. 3.9 COLD ADHESION AFTER HEAT AGEING No chipping, no loss of adhesion Test Method: 1) Specimen preparation
11、 according to 3.8, test method, section 1 and 2, test panel thickness 1.5 +/- 0.1 mm. 2) After 2 hours at room temperature test according to FLTM BV 151-01, Method A, clauses 5 to 8, Load A, at - 30 +/- 1 C. 3.10 CORROSION RESISTANCE No corrosion Test Method: 1) Specimen preparation according to 3.7
12、, test method, section 1 and 2. 2) Condition at room temperature for 24 hours and test according to ASTM B 117. a) 240 hours for test assemblies with anodic EC-coated panels (FLTM BI 120-01). b) 480 hours for test assemblies with cathodic EC-coated panels (FLTM BI 120-01). 3) Remove a 30 x 280 mm st
13、rip of material from test specimens and examine for evidence of corrosion. ENGINEERING MATERIAL SPECIFICATION SK-M99G9525-A Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 3 of 4 3.11 TEMPERATURE CYCLING TEST No chipping, no loss of adhesion, no shrinkage and blist
14、ering. Test Method: 1) Specimen preparation according to 3.7, test method, section 1 and 2. 2) Condition test specimens for 24 hours at room temperature and subject three times to the following cycle in the sequence indicated below: 3 h at 80 +/- 2 C 1 h at 23 +/- 2 C 3 h at - 30 +/- 1 C 1 h at 23 +
15、/- 2 C 16 h at 38 +/- 2 C and 98 +/- 2% relative humidity 3) After conditioning at room temperature for 24 hours test specimens according to FLTM BV 151-01, test method A, clause 5-8, Load A, at room temperature. 3.12 PAINTABILITY No shrinkage or blistering. The paint must form a closed film over th
16、e material surface. Discoloration and/or staining permitted. Test Method: 1) Specimen preparation according to 3.7 test method, section 1. 2) Finish test specimens according to FLTM BI 103-02, method Bb, using light colored production paint. 3.13 PALLETIZING The material and release paper shall sepa
17、rate easily from each other without tearing. Test Method: 1) Cut from material under test 5 specimens 100 x 100 mm and determine weight and thickness per specimen. 2) Ply up and cover with an aluminum plate of same size. 3) Load with a dead weight equaling a plied up height of 600 mm minus the weigh
18、t of 5 specimens and cover plate. 4) Expose test assembly in a mechanical convection oven maintained at a temperature of 35 +/- 2 C for 2 weeks. Cool to room temperature, remove weight and cover plate and examine as described above. 3.14 DAMPING FACTOR, min 0.12 (FLTM EU-BV 060-01, material thicknes
19、s 2.5 +/- 0.2 mm according to FLTM BV 150-05, Table 3, min curing cycle. Test after 24 h conditioning at room temperature) ENGINEERING MATERIAL SPECIFICATION SK-M99G9525-A Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 4 of 4 3.15 HEALTH HAZARDS AND ODOR The mater
20、ial must not contain any ingredients (matter), which, under normal production conditions, could lead to health hazards such as skin rash or irritation (dermatitis), irritation of the mucous membranes, difficulties in breathing, etc. The material shall be free from objectionable odors both as receive
21、d and after storage. 3.16 QUALITY The material shall be of uniform quality free from foreign material and properties detrimental to normal production use. It shall not cause excessive soiling of handlers in normal production use. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 STORAGE STABILITY (From date of receipt at Ford Motor Company) Minimum 6 months when stored between 5 C and 28 C. 5.2 HEIGHT IN STORAGE As recommended by supplier.
