1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2014 10 16 N Status No replacement named L. Sinclair, NA 1978 10 03 Metricated & Retyped CF4JRD5722136 1966 01 28 Released AU3-116 WP 3948-a Page 1 of 2 SEALER, LOCKING - POLYESTER RESIN BASE - HYDRAULIC ESE
2、-M4G140-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE: The material defined by this specification is an anaerobic polyester resin compound that hardens readily between closely fitted metal surfaces. 2. APPLICATION: This specification was released originally for use for sealing and/or locking threaded fas
3、teners or plugs. i.e., temperature sending unit to engine block. This could be either for fluid pressure resistance or working loose under shock and vibration or a combination of both. 3. REQUIREMENTS: 3.1 COLOR Brown 3.2 VISCOSITY at 23 +/- 2 C 100-500 cP (mPa.s) (ASTM D 445) 3.3 SOLUBILITY Place a
4、 drop of sealant in 1 mL of trichlorethylene and shake vigorously. Examine the solution under transmitted light. It shall be clear and free from precipitate. 3.4 LOCKING STRENGTH 40-110 lb.in (4.5-12.4 N.m) (FLTM BV 12-1) 3.5 RESISTANCE TO ESE-M2C48-A OIL Must not leak (FLTM BV 6-1, 72 h) 3.6 RESIST
5、ANCE TO A SOLUTION OF 50% Must not leak ESE-M97B18-C AND 50% WATER (FLTM BV 6-1, 72 h) 3.7 SEALING ABILITY (FLTM BV 6-1, 72 h) 3.7.1 Place two drops on 3/8 NPT male thread (brass) installed with 4 lb.ft (5.4 N.m) torque in 3/8 NPS female fitting (cast iron). Allow to cure for 60 min at 23 +/- 2 C. J
6、oint must not leak with 25 psi (173 kPa) air pressure. 3.7.2 Assemble and cure as in para 3.7.1. Subject assembly for 1 h at -40 C and 1 h at 149 C,repeat for 3 cycles (total time 6 h)Joint must not leak with 25 psi (173 kPa) air pressure. ENGINEERING MATERIAL SPECIFICATION ESE-M4G140-A WP 3948-b Pa
7、ge 2 of 2 3.8 TOXICITY The material shall be nontoxic and shall not cause skin rash or irritation (dermatitis) to exposed handlers in normal production operations. Benzene and chlorinated hydrocarbon solvents are considered toxic and their use is strictly prohibited in compounding material to this s
8、pecification. 3.9 QUALITY Shall be smooth, homogeneous mixture, free from foreign materials and properties detrimental to normal production use. 3.10 STORAGE STABILITY One bottle of compound shall be conditioned for 10 days at 49 +/- 2 C. After cooling to room temperature, the compound shall be test
9、ed for viscosity (para 3.2) and locking strength after normal curing (para 3.4). An increase in viscosity of 50% or failure of the compound to meet the locking strength shall constitute excessive deterioration, and it must be rejected. 3.11 SUPPLIERS RESPONSIBILITY Material supplied to this specific
10、ation must be equivalent to that originally approved. Changes in formulation or processing shall not be made without prior approval as described 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.
