1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 09 21 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.20, 3.21 & 4 2000 01 31 Activated L. Rumao Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 2 SOUND BARRIER, RECLAIMED POLYETHER-BASED WSS-M99G13
2、3-A3 URETHANE FOAM COMPOSITE 1. SCOPE The material defined by this specification is a composite of granulated polyether-based urethane foam and other process materials, such as adhesive, films, release liner, etc. The granules are bonded together with a polyether urethane-based adhesive. This materi
3、al can be laminated with adhesives and films or scrim cloth. 2. APPLICATION This specification was released originally as a sound and heat insulation on rear floor ducts. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREME
4、NTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 CONSTRUCTION The foam granule size to be approximately 6 mm diameter with a uniform distribution of any other process materials present
5、. 3.5 THICKNESS As specified on Engineering Drawing 3.6 DENSITY, kg/m3 95 160 (ISO 845/ASTM D 3574, Test A) 3.7 TENSILE STRENGTH, kPa, Rate & Report (ISO 1798/ASTM D 3574, Test E) 3.8 ELONGATION BREAK, % Rate & Report (ISO 1798/ ASTM D 3574, Test E) 3.9 TEAR STRENGTH, N/m, min 90 (ISO 8067/ASTM D 35
6、74, Test F, 50 mm/min) 3.10 COMPRESSION SET, %, max 20 (ISO 1856, Method A/ASTM D 3574, Test D, 22 h at 70 C, 50% deflection) ENGINEERING MATERIAL SPECIFICATION WSS-M99G133-A3 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 2 3.11 COMPRESSION DEFLECTION, kPa (
7、ISO 3386-1, specimen size 50 x 50 x 25 mm) At 25% compression 5 10 At 50% compression Rate & Report 3.12 AIRFLOW, m3/m2/minute, max 15 (ASTM D 3574, Test G) 3.13 FLAMMABILITY, mm/min, max 100 (ISO 3795/SAE J 369) 3.14 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioni
8、ng 1 h and 16 h) Fog Number, min 70 Formation of clear film, droplets or crystals is cause for rejection. 3.15 ODOR, max Rating 2 (SAE J 1351) 3.16 HEAT AGING PERFORMANCE (1000 h at 125 C) Change in Tensile strength, %, max 40 Change in Compression Set, %, max 25 3.17 COLD FLEXIBILITY No cracking or
9、 delamination Test Method: Cut two test specimens 50 x 150 mm. Age test samples for 4 h at an ambient temperature of 24 C. Bend the two test samples 180 around a temperature conditioned 25 mm diameter mandrel. 3.18 SOUND ABSORPTION Rate & Report (ASTM E 1050, 10 data points over 100 10K Hz range, and for 5, 10, 15, 25 mm thick specimens) 3.19 FUNGAL RESISTANCE (when specified on drawing) No growth (ASTM G 21, must use pre-approved fungicide) 5. RECYCLING CODE PU
