1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2003 01 16 Revised Para 3.0 inserted ; Para 3.1, 3.2, 3.3, 3.19, 3.20, 4 deleted 1994 01 12 NB00I10043054309 Released A.W.B. K.P.M B.C.F Printed copies are uncontrolled Page 1 of 3 Copyright 2002, Ford Globa
2、l Technologies, Inc. ADHESIVE, HOT MELT, POLYESTER BASE, POWDER FORM WSB-M2G279-B ADHESIVE, HOT MELT, POLYESTER BASE, WEB FORM WSB-M2G279-B2 1. SCOPE The materials defined by these specifications are polyester based hot melt adhesives which can be fused by heat and used to laminate materials. WSB-M2
3、G279-B is in powder form and WSB-M2G279-B2 is in web form. 2. APPLICATION These specifications were released originally to bond fabric to foam in seating applications. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Company
4、s Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 PHYSICAL CHARACTERISTICS In addition to the requirements listed herein, the adhesive bonded assemblies employing component materials as specified under lamination construction, must also meet engineering requirements of WSB-M8P1-
5、H or other applicable specifications. 3.5 LAMINATION CONSTRUCTION As specified on the Engineering drawing 3.6 COLOR Off-white or as specified on the Engineering drawing 3.7 DESCRIPTION 3.7.1 Particle Size of Powder B 0 - 74 micrometers 3.5 % 75 - 210 micrometers 26 - 42 % 211 - 500 micrometers 56 -
6、73 % 501 - 840 micrometers 1 % Particle size must be functionally approved for production use for specific application. ENGINEERING MATERIAL SPECIFICATION WSB-M2G279-B/B2 Page 2 of 3 Copyright 2002, Ford Global Technologies, Inc. 3.7.2 Weight of Web, g/m2B2 (FLTM BN 106-01) 20 gram web 20 +/- 2 22 g
7、ram web 22 +/- 2 25 gram web 25 +/- 2 40 gram web 40 +/- 2 B B2 3.8 DENSITY OF SOLID POLYMER, g/cm31.26 - 1.31 1.26 - 1.31 (ASTM D 1505) 3.9 DSC MELTING POINT OF SOLID POLYMER, C 125 +/- 7 126 +/- 7 (ASTM D 3418) 3.10 THERMOSEL VISCOSITY OF SOLID POLYMER, mPa.s 80,000-126,000 80,000-150,000 (Brookfi
8、eld RUTDV-1 thermosel spindle #27 at 1 rpm and 215 C 3.11 SOLIDS, %, min 98 98 (ASTM D 2834, except heat at 175 +/- 3 C for 4 h, save sample for next test) 3.12 ASH, %, max 5.0 5.0 (Based on weight of solids) Test Method: Place the crucible containing the solids residue in a cool muffle furnace. Slo
9、wly heat to and maintain at 760 +/- 30 C for 1 h. Cool to 23 +/- 2 C in a desiccator and weigh. 3.13 ORIGINAL PLY ADHESION OF ADHESIVE TO LAMINATE, min (B2 only) 9 N/50 mm or (FLTM BN 151-05) Foam Tearing Bond 3.14 ODOR Rating 2 (FLTM BO 131-01/SAE J1351) 3.15 FOGGING (SAE J1756, 3 h at 100 C heatin
10、g, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 60 Formation of clear film, droplets or crystals is cause for rejection. ENGINEERING MATERIAL SPECIFICATION WSB-M2G279-B/B2 Page 3 of 3 Copyright 2002, Ford Global Technologies, Inc. 3.16 QUALITY Material shall be a smooth h
11、omogeneous product free from abrasive particles, it shall be consistent in color and texture, and free from objectionable odors during normal storage. It shall be suitable for the intended application. 3.17 STORAGE LIFE, min One year when stored at 0 - 49 C in sealed, moisture proof containers (powd
12、er form only). 3.18 FUNCTIONAL APPROVAL Materials being evaluated for approval to this specification shall be subjected to a production trial. Functional trial results must be approved by the affected assembly operation and Design Engineering. Results shall be made available to Materials Engineering prior to material approval and release.
