1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 06 25 Activated U. Mueller Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 1 of 2 CAVITY WAX, HEAT KICK 60 C, 0-EMISSION, ODOR APPROVED, WSS-M7C97-A IMPROVED CREEP CHARACTERISTIC CORROSION PROTECTION, AU
2、TOMOTIVE CAVITIES 1. SCOPE The material defined by this specification is solvent free based rust preventive compounds with minimum 99% solid content and contain an UV- marker. 2. APPLICATION This specification was originally released for cavity waxes sprayed into box sections below the floor panel (
3、rocker panel, side and cross members, etc.), in the engine compartment and to lower areas of pillars, doors, hood and tailgate. They are applied to the vehicle body after the paint process, prior to final assembly. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers
4、 and part producers must conform to the Companys Standard Requirements for Production Materials (WSS-M99P1111-A). 3.2 MATERIAL PROPERTIES 3.2.1 Non Volatile content, min 99% (FLTM BI 102-01) 3.2.2 Viscosity See initial sample 3.2.3 Density at 23 C See initial sample 3.2.4 Flash point See initial sam
5、ple 3.2.5 Flow rate (FLTM BJ 128-01, apply 0,1ml droplets) Immediately after the application at 23 C max 70mm at 60 C min 150mm ENGINEERING MATERIAL SPECIFICATIONWSS-M7C97-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 2 3.2.6 Creeping Power (FLTM BJ 128-02
6、, Method A) at 23 C min 20mm at 60 C min 35mm 3.2.7 Drying Wax according to this specification is air drying. Drying can be accelerated by heating the body after waxing or by pre-heating the body prior to applying the wax. Film thickness (on test panels) 35 +/- 5 m “Heat kick“ 60 C / 1 min Drying ti
7、me (drip free, after heat kick) immediately at RT 3.2.8 Storage Stability The storage stability must be adapted to the climate conditions at the individual plant. Minimum storage conditions for 6 months at 32 C all waxes: 6 months at 5 C and Additionally for tropical climates: 3 months at 40 C After
8、 the storage, the material shall not show any insoluble separation or coagulation and must meet all specification requirements. 3.3 PERFORMANCE PROPERTIES Wax according to specification WSS-M7C97-A must meet all requirements of WSS-M21P35-A2. 4. GENERAL INFORMATION The information given below is pro
9、vided for clarification and assistance in meeting the requirements of this specification. 4.1 MATERIAL REFERENCE All related materials used for approval of cavity wax according to this specification, e.g. substrate, paint materials, solvents, etc. as well as the application parameter (viscosity, film thickness, drying conditions) shall be noted in the Initial Sample Report of the wax.
