MIL-PRF-24176C
3.5.5 Adhesion and resistance to impact. The cement shall remain firmly adhered to the steel, aluminum,
and copper alloy plates when tested after 7-day and 3-month curing periods as specified in 4.5.8.
3.5.6 Compatibility of cement with primers and paint. There shall be no signs of lifting, peeling,
softening, blistering, poor intercoat adhesion, or other undesirable properties when tested as specified in 4.5.9.
3.5.7 Alkali resistance (Type I only). The cement shall show no evidence of evolution of gas, loss of
adhesion, swelling, softening, marked color change, or other indications of deterioration when tested as specified
in 4.5.10.
3.5.8 Storage stability. When stored for 1 year as specified in 4.5.13, the cement shall meet the
requirements of 3.4, except that hardness, curing time, and pot life shall vary not more than plus or minus 10
percent of the values specified in Table I.
3.6 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or
environmentally preferable materials should be used to the maximum extent possible provided that the material
meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life
cycle costs.
3.7 Toxicity. When evaluated in accordance with 4.6, the cement shall have no adverse effect on the
health of personnel when used for its intended purpose and shall not cause any environmental problems during
waste disposal (see 4.6 and 6.6).
3.8 Asbestos prohibition. Epoxy metal repair and hull smoothing cement provided in accordance with this
specification shall contain no asbestos nor any asbestos-containing ingredients.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:
a. Qualification inspection (see 4.2).
b. Conformance inspection (see 4.3).
4.2 Qualification inspection. Qualification tests shall be conducted at a laboratory satisfactory to the
Naval Sea Systems Command. Qualification tests shall consist of the tests specified in 4.4 and 4.5.
4.3 Conformance inspection.
4.3.1 Sampling.
4.3.1.1 Lot. For purposes of sampling, a lot shall consist of all cement from one production batch
offered for delivery at one time.
4.3.1.2 Sampling for tests. From each lot offered for inspection, a total of 8 liters (two gallons) of the
appropriate volume ratio of each component of the cement shall be selected at random and forwarded to an
acceptable laboratory for testing as specified in 4.4 and 4.5.
4.3.1.3 Sampling for examination of containers. A random sample of filled containers shall be selected
by the inspector in accordance with ASQC Z1.4 at inspection level I to verify compliance with all requirements of
this specification regarding fill, closure, marking, and other requirements not involving tests. Any unacceptable
containers shall be discarded and be replaced by containers that pass the requirements.
4.3.1.3.1 Examination of containers. Each filled container selected as a sample shall be examined for
defects of construction of the container and the closure, for evidence of leakage, and for unsatisfactory markings.
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