| (BBB) Optical antireflection coating--A coating with
a low reflectance in the infrared and visible wavelength ranges that
is used for antireflection on or near optical and laser hardware.
(CCC) Part marking coating--Coatings or inks used to
make identifying markings on materials, components, and/or assemblies
of aerospace vehicles. These markings may be either permanent or temporary.
(DDD) Pretreatment coating--An organic coating that
contains at least 0.5% acids by weight and is applied directly to
metal or composite surfaces to provide surface etching, corrosion
resistance, adhesion, and ease of stripping.
(EEE) Primer--The first layer and any subsequent layers
of identically formulated coating applied to the surface of an aerospace
vehicle or component. Primers are typically used for corrosion prevention,
protection from the environment, functional fluid resistance, and
adhesion of subsequent coatings. Primers that are defined as specialty
coatings are not included under this definition.
(FFF) Radome--The nonmetallic protective housing for
electromagnetic transmitters and receivers (e.g., radar, electronic
countermeasures, etc.).
(GGG) Rain erosion-resistant coating--A coating or
coating system used to protect the leading edges of parts such as
flaps, stabilizers, radomes, engine inlet nacelles, etc. against erosion
caused by rain impact during flight.
(HHH) Research and development--An operation whose
primary purpose is for research and development of new processes and
products and that is conducted under the close supervision of technically
trained personnel and is not involved in the manufacture of final
or intermediate products for commercial purposes, except in a de minimis
manner.
(III) Rocket motor bonding adhesive--An adhesive used
in rocket motor bonding applications.
(JJJ) Rocket motor nozzle coating--A catalyzed epoxy
coating system used in elevated temperature applications on rocket
motor nozzles.
(KKK) Rubber-based adhesive--A quick setting contact
cement that provides a strong, yet flexible bond between two mating
surfaces that may be of dissimilar materials.
(LLL) Scale inhibitor--A coating that is applied to
the surface of a part prior to thermal processing to inhibit the formation
of scale.
(MMM) Screen print ink--An ink used in screen printing
processes during fabrication of decorative laminates and decals.
(NNN) Sealant--A material used to prevent the intrusion
of water, fuel, air, or other liquids or solids from certain areas
of aerospace vehicles or components. There are two categories of sealants:
extrudable/rollable/brushable sealants and sprayable sealants.
(OOO) Seal coat maskant--An overcoat applied over a
maskant to improve abrasion and chemical resistance during production
operations.
(PPP) Self-priming topcoat--A topcoat that is applied
directly to an uncoated aerospace vehicle or component for purposes
of corrosion prevention, environmental protection, and functional
fluid resistance. More than one layer of identical coating formulation
may be applied to the vehicle or component.
(QQQ) Semiaqueous cleaning solvent--A solution in which
water is a primary ingredient. More than 60% by volume of the solvent
solution as applied must be water.
(RRR) Silicone insulation material--An insulating material
applied to exterior metal surfaces for protection from high temperatures
caused by atmospheric friction or engine exhaust. These materials
differ from ablative coatings in that they are not "sacrificial."
(SSS) Solid film lubricant--A very thin coating consisting
of a binder system containing as its chief pigment material one or
more of the following: molybdenum, graphite, polytetrafluoroethylene,
or other solids that act as a dry lubricant between faying (i.e.,
closely or tightly fitting) surfaces.
(TTT) Space vehicle--A man-made device, either manned
or unmanned, designed for operation beyond earth's atmosphere. This
definition includes integral equipment such as models, mock-ups, prototypes,
molds, jigs, tooling, hardware jackets, and test coupons. Also included
is auxiliary equipment associated with test, transport, and storage,
that through contamination can compromise the space vehicle performance.
(UUU) Specialty coating--A coating that, even though
it meets the definition of a primer, topcoat, or self-priming topcoat,
has additional performance criteria beyond those of primers, topcoats,
and self-priming topcoats for specific applications. These performance
criteria may include, but are not limited to, temperature or fire
resistance, substrate compatibility, antireflection, temporary protection
or marking, sealing, adhesively joining substrates, or enhanced corrosion
protection.
(VVV) Specialized function coating--A coating that
fulfills extremely specific engineering requirements that are limited
in application and are characterized by low volume usage. This category
excludes coatings covered in other specialty coating categories.
(WWW) Structural autoclavable adhesive--An adhesive
used to bond load-carrying aerospace components that is cured by heat
and pressure in an autoclave.
(XXX) Structural nonautoclavable adhesive--An adhesive
cured under ambient conditions that is used to bond load-carrying
aerospace components or other critical functions, such as nonstructural
bonding in the proximity of engines.
(YYY) Surface preparation--The removal of contaminants
from the surface of an aerospace vehicle or component or the activation
or reactivation of the surface in preparation for the application
of a coating.
(ZZZ) Temporary protective coating--A coating applied
to provide scratch or corrosion protection during manufacturing, storage,
or transportation. Two types include peelable protective coatings
and alkaline removable coatings. These materials are not intended
to protect against strong acid or alkaline solutions. Coatings that
provide this type of protection from chemical processing are not included
in this category.
(AAAA) Thermal control coating--A coating formulated
with specific thermal conductive or radiative properties to permit
temperature control of the substrate.
(BBBB) Topcoat--A coating that is applied over a primer
on an aerospace vehicle or component for appearance, identification,
camouflage, or protection. Topcoats that are defined as specialty
coatings are not included under this definition.
(CCCC) Touch-up and repair coating--A coating used
to cover minor coating imperfections appearing after the main coating
operation.
(DDDD) Touch-up and repair operation--That portion
of the coating operation that is the incidental application of coating
used to cover minor imperfections in the coating finish or to achieve
complete coverage. This definition includes out-of-sequence or out-of-cycle
coating.
(EEEE) Volatile organic compound (VOC) composite vapor
pressure--The sum of the partial pressures of the compounds defined
as VOCs, determined by the following calculation:
Attached Graphic
(FFFF) Waterborne (water-reducible) coating--A coating
which contains more than 5.0% water by weight as applied in its volatile
fraction.
(GGGG) Wet fastener installation coating--A primer
or sealant applied by dipping, brushing, or daubing to fasteners that
are installed before the coating is cured.
(HHHH) Wing coating--A corrosion-resistant topcoat
that is resilient enough to withstand the flexing of the wings.
(2) Can coating--The coating of cans for beverages
(including beer), edible products (including meats, fruit, vegetables,
and others), tennis balls, motor oil, paints, and other mass-produced
cans.
(3) Coil coating--The coating of any flat metal sheet
or strip supplied in rolls or coils.
(4) Fabric coating--The application of coatings to
fabric, which includes rubber application (rainwear, tents, and industrial
products such as gaskets and diaphragms).
(5) Factory surface coating of flat wood paneling--Coating
of flat wood paneling products, including hardboard, hardwood plywood,
particle board, printed interior paneling, and tile board.
(6) Large appliance coating--The coating of doors,
cases, lids, panels, and interior support parts of residential and
commercial washers, dryers, ranges, refrigerators, freezers, water
heaters, dishwashers, trash compactors, air conditioners, and other
large appliances.
(7) Metal furniture coating--The coating of metal furniture
(tables, chairs, wastebaskets, beds, desks, lockers, benches, shelves,
file cabinets, lamps, and other metal furniture products) or the coating
of any metal part which will be a part of a nonmetal furniture product.
(8) Mirror backing coating--The application of coatings
to the silvered surface of a mirror.
(9) Miscellaneous metal parts and products coating.
Cont'd... |
