1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 02 2012 05 14 N Status No usage or replacement N.Benipal, NA 2008 04 29 Revised Inserted 3.0; Deleted 3.7 & 4 1981 04 10 Released PCE-0262/CEL1-CVL1-C5L1-1R-588820-1 Controlled document at www.MATS Copyright 2012, Ford Global Technologies
2、, LLC Page 1 of 3 PRIMER, FLASH - FOR POLYOLEFIN SUBSTRATES EXTERIOR ESB-M6J142-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a primer with good adhesion to polyolefin surfaces. The primer may be either clear or pigmented. 2. APPLICATION This specification wa
3、s released originally for primers used as thin flash coats on exterior polyolefin copolymer parts, followed by a color coat. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Mate
4、rials (WSS-M99P1111-A). 3.1 COMPOSITION The non-volatile portion shall be composed of resins with good adhesion to polyolefin copolymer and may be pigmented as a guide to visual coverage if desirable. The volatile portion shall be balanced to provide good application properties and complete surface
5、wetting. The material shall be compatible as a flash primer with enamels or primer surfacers normally used in production. The material shall not cause skin rash or irritation (dermatitis) to exposed handlers in normal production operations. 3.2 PHYSICAL PROPERTIES 3.2.1 Non-Volatile Solids (FLTM BI
6、102-01) Shall be established by the vendor on the initial approved production batch. Tolerance shall be +/- 2.0%. 3.2.2 Viscosity (FLTM BI 111-01) Shall be established by the vendor on the initial approved production batch. Tolerance shall be +/- 5 s. 3.2.3 Stability The material shall not liver or
7、jell and shall retain its normal application and working properties after 30 days shelf storage at 23 +/- 2 C. ENGINEERING MATERIAL SPECIFICATION ESB-M6J142-A Copyright 2012, Ford Global Technologies, LLC Page 2 of 3 3.3 PREPARATION OF TEST PANELS 3.3.1 Substrate (see para 5.3) Conduct test on exter
8、ior grade low density polyolefin copolymer plaques or parts. 3.3.2 Surface Preparation Wipe plastic with M14J242 Toluene. 3.3.3 Primer Spray as received, without reduction, 1-2 passes completely wetting the panel (film thickness 0.1 mil (2.5 m) max). 3.3.4 Color Coat (see para 5.3) Apply 1.0 mil (26
9、 m) min. 3.3.5 Aging After application of the color coat, all panels shall be aged 72 h min at 23 +/- 2 C before testing. 3.4 APPEARANCE When properly applied per para 3.3, the system shall dry to a presentable, serviceable film showing no craters, pinholes, seediness or abnormal roughness. There sh
10、all be no evidence of dulling or enamel strike-in to the primer. 3.5 FILM PROPERTIES (All test specimens shall be prepared as described in para 3.3) 3.5.1 Adhesion No chipping or flaking (FLTM BI 106-01) 3.5.2 Flexibility No cracking when bent over a 1 in (25 mm) mandrel at 23 +/- 2 C. 3.6 RESISTANC
11、E PROPERTIES (All test specimens shall be prepared as described in para 3.3) 3.6.1 Water Resistance, min 240 h Test Method: Immerse the panels in distilled or deionized water maintained at 32 +/- 1 C per FLTM BI 104-01. Remove from water and immediately scribe an “X“ through the material to the subs
12、trate. Dry the scribed area with a paper towel, cloth or air pressure and immediately apply, with firm thumb pressure, a min of 2 sq in (13 cm2) of ESF-M3G48 tape. Remove the tape by pulling one end at a 90 angle at a moderate speed. The following conditions shall be basis for rejection: Removal of
13、paint beyond 1/16 in (1.6 mm) from any scribe line. Any evidence of blistering after tape removal. ENGINEERING MATERIAL SPECIFICATION ESB-M6J142-A Copyright 2012, Ford Global Technologies, LLC Page 3 of 3 3.6.2 Weathering Resistance Panels prepared in accordance with para 3.3 shall show no increase
14、of brittleness or loss of adhesion and panels shall be completely free from evidence of cracking, checking, blistering, or peeling when exposed as follows: Florida Exposure (Miami area) 12 months at 5 facing south Accelerated Weathering (FLTM BO 101-01) 1000 h in Atlas Weatherometer 3.6.3 Thermal Sh
15、ock Resistance (FLTM BI 107-05) The coating shall exhibit no blistering or loss of adhesion. 4 h water immersion. 4 h minimum exposure at -29 C. Direct steam blast on scribed “X“ at 45 angle 2 3 in (50 - 75 mm) from panels for 15 s minimum. 5. GENERAL INFORMATION The information given below is provi
16、ded for clarification and assistance in meeting the requirements of this specification. 5.1 FLASH POINT Below 26 C 5.2 FLAMMABILITY This material represents a potential fire hazard. The Manufacturing Engineering Department shall notify both the Plant Security and the Safety Units of its presence in
17、the Plant to assure that proper fire precautions are provided. The location in which it is used or stored shall be included in the notifications. 5.3 MATERIAL REFERENCES 5.3.1 Substrates ESB-M4D383-A2 Polyolefin Copolymer ESB-M4D330-A2 Ionomer (Ethylene Molding Compound - Zinc Type 5.3.2 Color Coats ESB-M2J121 Elastomeric Enamel ESB-M2J123 Enamel, Low Bake Exterior
