1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2014 10 16 N Status No replacement L. Sinclair, NA 1978 10 31 Metricated and Retyped CE3H-RD782440-E 1963 08 30 Released E7-2777 WP 3948-a Page 1 of 1 COATING, PLASTIC - ANTISTICK ESE-M4G117-A NOT TO BE USED
2、 FOR NEW DESIGN 1. SCOPE: The material defined by this specification is a plastic base coating. 2. APPLICATION: This specification was released originally for material used as an antistick coating on stainless steel and composition cylinder head gaskets. 3. REQUIREMENTS: 3.1 FILM THICKNESS 0.0002 -
3、0.0015 in (ASTM D 1186) (5 - 38m) On metal surfaces, each side 3.2 INITIAL HARDNESS Must be sufficiently cured at time of packing to withstand normal handling and shipping without marring. 3.3 HEAT RESISTANCE Shall not become brittle. Shall not flake, or have any appreciable hardness increase after
4、baking for 5 h at 177 C. 3.4 STORAGE Shall not cause gaskets to adhere together when stored. 3.5 SUPPLIERS RESPONSIBILITY Material supplied to this specification must be equivalent to that originally approved. Changes in formulation or processing shall not be made without prior approval as described
5、 in Supplier Procedure I-A. 4. APPROVAL OF SUPPLIERS: Suppliers to this specification must be approved by the affected product engineering office. Procedure for gaining approval of a specific material to a new/existing ES-M specification is contained in Supplier Procedure I-A. Approved new suppliers will be added to the Engineering Materials Approved Source List.
