MIL-HDBK-1110
the same formulation have met specification requirements, and a
few quick laboratory tests (standard quality control (QC) tests)
by the supplier indicate that the present batch does also.
Sometimes, analytical results from an earlier batch are required
along with the certificate. When qualified products lists, for
Federal or military specifications, or suggested supplier lists,
for commercial item descriptions, are available, the listed
suppliers should be utilized.
c) For large or critical batches of paint, factory-
witnessed manufacture or testing is sometimes done. These and
first article tests can be very expensive and so should be used
only where the expense is justified.
d) Sometimes, authenticated wet samples of coating are
retained for later testing, should early failure occur. They are
normally retained for only 1 year, the normal warranty period.
The specification should also permit field sampling of coatings
being applied. This may prevent unnecessary thinning or
substitution of products.
e) The data sheets and instructions of suppliers may
be used to define under what conditions and under what acceptable
procedures the product can be successfully applied to produce a
quality film. If SSPC PA 1, Shop, Field, and Maintenance
Painting, or a written description of the work requirements are
included in the specification, the order of priority of these
documents should be stated, should some differences occur.
f) At one time, many specifications stated that an
undercoat should be allowed to thoroughly cure before topcoating.
However, complete curing of thermosetting undercoats may present
problems of adhesion of finish coats.
g) Warranties should also be received as a submittal.
Some products such as textured coatings for masonry structures
are commonly warranted for 15 years. Such warranties are
normally limited to such conditions as flaking, blistering, or
peeling. They do not usually include fading or chalking in
sunlight.
h) Inspection, safety, or work sequence and scheduling
plans may be required in order to obtain information on how each
of these aspects will be handled. An inspection plan will show
how each of the inspection requirements will be met. SSPC has
examples of these plans and reporting forms. Information of the
sequencing and execution of the work will be important where they
affect other operations.
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