MIL-S-83318 Sealing Compound, Low Temperature Curing, Quick Repair Integral Fuel Tanks And Fuel Cell Cavities S/S By Sae-Ams-S-83318This specification covers a two component, temperature??resistant ??65??F to +250??F ??54??C to +120??C, low temperature 20??F minimum curing synthetic rubber compounds for quick repair of aircraft integral fuel tanks and fuel cell cavities. During application, the sealing compounds shall be a suitable, fluid consistency.

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MIL-S-83318A(USAF)

Class  and Dash No.

Specification MIL-S-83318A(USAF) Manufacturer's Code No.

Name of Manufacturer

Lot Number

Date of Manufacture

Submitted by (name) (date) for qualification tests in accordance with MIL-S-83318A(USAF)

under authorization (reference authorizing letter)

4.5  Quality conformance inspection

4.5.1 Lot. A lot shall consist of all material of the same identity, from the same batch, and submitted at the same time for inspection.

4.5.2  Batch.  A batch shall be the quantity of material run through a mill or mixer at one time.

4.5.3  Sampling for quality conformance tests.  Each lot shall be tested as specified in 4.5.4. Samples shall be selected from the materials which are packaged in sectional-type containers conforming to MIL-S-38714. A sufficient number of containers shall be selected from each lot in order to conduct all the tests specified.

4.5.4  Quality conformance tests.  Quality conformance tests for acceptance of individual batches shall consist of the following tests:

Test                                                                       Test procedure

a.  Flow (Class B only)                                                             4.9.4 b.  Application time                                                                   4.9.5 c.   Tack-free time                                                                     4.9.6 d.  Cure time                                                                            4.9.7 e.  Fluid immersed curing time                                                 4.9.8 f.   Peel strength (4 aluminum panels, QQ-A-250/12, T6       4.9.9

chemical filmed in accordance with MIL-C-5541, type II, class I (dichromate sealed) coated with material conforming to MIL-C-27725, 7 day immersion test only.)

g.. Chalking 1/                                                                          4.9.10 h.  Air Content (Class B only)                                                  4.9.11

1/   In lieu of the 14-day cure specified, specimens shall be subjected to an accelerated cure of 48 hours at 77°F (25°C)   and 50 percent relative humidity followed by 24 hours at

140°F (60°C).

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