1、 DRAFT ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2014 06 10 Reactivated See Summary of Revisions M. Corley, EU 2012 05 15 N Status No usage or replacement N. Benipal, NA 1989-11-07 SM/EQ 4967 TP Release K.Wolters D-MB/PQ-13 Controlled document at www.MATS Copyright 2014, Ford G
2、lobal Technologies, LLC Page 1 of 4 PRIMER, ADHESION, ONE PACK, POLYPROPYLENE ESK-M6J157-A PLASTICS, GREY, 15 MICROMETER 1. SCOPE The material defined by this specification is a solvent based high flexible adhesion primer for polypropylene plastics. 2. APPLICATION This specification was originally r
3、eleased for material used as adhesion primer for polypropylene bumpers (see also 4.3). 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 COMPOSITIO
4、N 3.2.1 Resin: Synthetic resins 3.2.2 Pigments: Pigments to obtain the desired properties for the adhesion primer. 3.3 MATERIAL PROPERTIES 3.3.1 Non-volatile see Initial Sample +/- 1 %; (FLTM BI 102-01) min. 35 % The non-volatile content shall be determined at a spray viscosity of 20 s according to
5、para 3.3.4. 3.3.2 Density see Initial Sample +/- 0.02 g/mL (ASTM D 1475) 3.3.3 Viscosity as supplied see Initial Sample +/- 5 s (FLTM BI 111-01) 3.3.4 Spray Viscosity as specified by the supplier (FLTM BI 111-01, FC #4) The material can be reduced with Xylene, Butyl acetate or any other suitable thi
6、nner. ENGINEERING MATERIAL SPECIFICATION ESK-M6J157-A Copyright 2014, Ford Global Technologies, LLC Page 2 of 4 3.3.5 Storage Stability 3.3.5.1 Heat Stability (FLTM BI 102-03) Paint shall not jell, settle hard or increase viscosity in excess of 10s 3.3.5.2 Stability after aging During storage of 90
7、days between 5 C and 32 C temperature the material as supplied shall not settle up or cake insoluble. After the storage the material must pass all specification requirements. 3.4 PREPARATION OF TEST PANELS 3.4.1 Substrate Polypropylene as specified on Engineering Drawing. All tests shall be performe
8、d on panels with a smooth, ungrained surface. 3.4.2 Plastic Preparation (see also 4.1) The surface to be painted shall be cleaned by an acceptable process, e.g. power wash, to remove mold releasing agents, fingerprints, oils, dirt and moisture. 3.4.3 Adhesion primer application Dry film thickness: 1
9、5 - 25 micrometer Flash off: 10 minutes at room temperature Baking: not required 3.4.4 Primer Surfacer (if required) Wet on wet application of a primer surfacer, film thickness and baking as specified in the relevant material specification. 3.4.5 Top coat application Application of currently used tw
10、o pack high flexible top coat systems, film thickness and baking as specified in the relevant material specification. 3.4.6 Ageing Test panels prepared under this specification shall be aged for at least 168 h at 23 +/- 2 C or 16 h at 45 +/- 1 C before testing for resistance properties. 3.5 APPEARAN
11、CE (Primer only) 3.5.1 Color light grey (FLTM BI 109-01) ENGINEERING MATERIAL SPECIFICATION ESK-M6J157-A Copyright 2014, Ford Global Technologies, LLC Page 3 of 4 3.5.2 Gloss matte or semi gloss 3.6 RESISTANCE PROPERTIES (see also 4.3) Test Panels and plastic parts painted according to para 3.4 of t
12、his specification shall meet all requirements of performance specifications WSS-M2P181-C/Latest and WSK-M2P164-A/Latest. 3.7 COLD IMPACT RESISTANCE (Initial Approval only) Falling dart test at -25 C (equipment available in Materials & Fastener Quality Engineering laboratory, Merkenich) or as specifi
13、ed on Engineering Drawing. The painted part shall show no breaks, cracks, chipping or other failures. The topcoat shall not deteriorate the cold impact resistance of the unpainted part. 3.9 QUALITY The adhesion primer must be adaptable for application in accordance with the appropriate Ford Motor Co
14、mpany Process Specification. The adhesion primer must be compatible with all related materials, e.g. topcoat, primer, substrate, etc. 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questi
15、ons concerning Engineering Material Specifications. 4.1 PRETREATMENT Depending on the type of substrate material, a pretreatment e.g. by flame process, corona discharge or plasma, may be necessary prior to painting to provide sufficient paint adhesion to meet all specification requirements. 4.2 DENS
16、ITY OF THE DRY FILM see Initial Sample +/- 0.02 kg/L (FLTM BI 154-02) 4.3 ALTERNATE PAINT SYSTEM Adhesion Primer according to this specification may also be used in combination with paint system according to WSS-M2P180-D/latest for rigid exterior plastic applications such as radiator grilles, mirror
17、s, body side moldings, etc. Flash off, baking and aging conditions must then be adapted to that paint system and test panels and painted parts shall additionally meet the requirements of Performance Specification WSS-M2P181-C/latest ENGINEERING MATERIAL SPECIFICATION ESK-M6J157-A Copyright 2014, For
18、d Global Technologies, LLC Page 4 of 4 4.4 MATERIAL REFERENCE All related materials used for approval of adhesion primer according to this specification, e.g. topcoat, primer, thinner and plastic substrate as well as the application parameter shall be noted in the Initial Sample Report of the adhesion primer. 5. SUMMARY OF REVISIONS 2014 06 10 Updated format to latest level, re-numbered. Removed CPO reference in para 3.4.1 Removed I status spec references in para 3.5.4 Added warm stability requirements in para 3.5.5 Performance Specification references in para 3.8 and 5.3 updated
