1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action Revisions1979 05 30 Released CZJ1-DR579192-1WP 3948-a Page 1 of 2SEALER, RUBBER BASE - HEAT EXPANDING - EXTRUDED ESB-M4G223-A1. SCOPE:The material defined by this specification is a rubber based sealerextruded in washer
2、 form, which expands when heat cured at 182 C minimum.2. APPLICATION:This specification was released originally for material used to preventbolt torque loss and to seal against water leaks on third door hingeassemblies.3. REQUIREMENTS:3.1 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSISFord Motor
3、Company, at its option, may conduct infrared and/orthermal analysis of material/parts supplied to this specification.The curves established for initial approval shall constitute thereference standard and shall be kept on file at Central Laboratory.All samples shall produce curves that correspond to
4、the referencestandard when tested under the same conditions as those specifiedon the master curve.3.2 CONDITIONINGAll test values indicated herein are based on material conditionedin a controlled atmosphere of 23 +/- 2 C and 50 +/- 5% relativehumidity for 24 h prior to testing and tested under the s
5、amecontrolled conditions.3.3 NEEDLE PENETRATION AT 23 +/- 2 C(ASTM D 1321, 100 g total load)3.3.1 As Received 3.5 - 6.0 mm3.3.2 Aged, min 3.0 mmTest Method: Condition 3 days at 70 +/- 1 C, cool to 23+/- 2 C and determine needle penetration.3.4 SOLIDS, min 95%(ASTM D 2834, except heat at 102 +/- 3 C
6、for 3 h)ENGINEERING MATERIAL SPECIFICATION ESB-M4G223-AWP 3948-b Page 2 of 23.5 VOLUME EXPANSION 100 - 200%(FLTM BV 8-2, use a 0.5 x 1 x 0.2 in(12.7 x 25 x 5.1 mm) slab and bake at182 +/- 3 C for 10 min metal temperature)The Water Absorption Test, para 3.6, can be conducted concurrently.3.6 WATER AB
7、SORPTION, max 4%(FLTM BV 17-1, Method “A“, use a0.5 x 1 x 0.2 in (12.7 x 25 x 5.1 mm)slab and bake at 182 +/- 3 C for 10min metal temperature)3.7 HEAT RESISTANCE No evidence of cracking orplasticizer exudationTest Method: Subject a 1 x 1 x 0.2 in (25 x 25 x 5.1 mm) slab ofmaterial to a temperature o
8、f 205 +/- 3 C for 30 min metaltemperature.3.8 STORAGE STABILITYThis material shall be stored at ambient room temperature below38 C, away from all sources of heat. Heat greatly acceleratesaging. Under these storage conditions, the minimum shelf life ofthe material shall be 3 months. When stored at te
9、mperatures below23 C, it shall be conditioned at room temperature prior toapplication. Adequate conditioning permits the material to obtainits maximum application properties.3.9 SUPPLIERS RESPONSIBILITYMaterial supplied to this specification must be equivalent to thatoriginally approved. Changes in
10、formulation or processing shallnot be made without prior approval as described in SupplierProcedure I-A.4. APPROVAL OF SUPPLIERS:Suppliers to this specification must be approved by the affected productengineering office. Procedure for gaining approval of a specificmaterial to a new/existing ES-M spe
11、cification is contained in SupplierProcedure I-A. Approved new suppliers will be added to the EngineeringMaterials Approved Source List.5. GENERAL INFORMATION:The material data included herein is for information only and is not arequirement for the supplier.5.1 SPECIFIC GRAVITY at 23 +/- 2 C 1.48(ASTM D 71)
