Acoustic Interlayer The glass has a thicker than normal vinyl laminate to help reduce outside
noise.
Adhesive For ARG, a substance used for bonding other substances together - such as a
windshield and the pinchweld in the vehicle.
Adhesive Chip A fragment of glass that is fused or adhered tightly to the surface of the
glass.
AG Automotive glass.
Annealing The process of preventing objectionable stresses in sheer, float, or rolled
glass during manufacture by controlled cooling. Re-annealing is the process of
removing objectionable stresses in glass by re-heating to a suitable
temperature followed by controlled cooling.
Ant Antenna.
Antenna Wire or set of wires capable of transmitting or receiving radio waves.
Sometimes bonded to or imbedded in replacement glass parts.
ARG Automotive replacement glass.
Backlight The rear glass window in a vehicle.
Batch Privacy Glass Ford Glass Division uses a process for producing privacy parts in which the
feature is accomplished by adding ingredients to the mixture in the float tank.
Before the process, reflective coatings were applied after the glass was
produced.
"B" Parts This reference is used to describe Carlite parts which are sold at a lower
discount off truckload which makes their cost higher compared to other parts
with similar NAGS list prices. Some distributors may elect to sell these parts
to installers at a net price instead of discounting off NAGS.
Bead A sealant after application in a joint, irrespective of the method of application,
such as caulking bead, glazing bead, etc. Also a molding or stop used to hold
glass or panels in position.
Bent Glass Flat glass that has been shaped while hot into cylindrical or other curved
shapes.
Bevel A deviation from a right angle break on a scored and severed glass edge.
Bite The dimension by which the edge of the glass product is engaged into the
glazing channel.
Block Rectangular, curved sections of neoprene or other approved material used to
position the glass in the glazing channel.
BMS The company computer and software system or Branch Management System.
Book Inventory The book (or ledger) value of inventory at a current standard cost
which is adjusted monthly.
Bow A deviation of the glass surface from a true plane.
Breakage Account
The account to which the value of ARG parts inventory is charged
when they are broken or otherwise damaged beyond repair.
Breather Tube A device added to an insulating glass unit that allows excess pressure
to bleed off to the atomosphere. Required for high (over 4000')
altitudes.
Bubble A round or elongated gaseous inclusion in the glass; may be partially
emergent.
Bug Logo of the manufacturer etched into or painted onto the ARG part.
Buy Out The process of buying a part from a competitor to fill a customer's
order.
Button (or Mirror Button)
An attachment on the interior surface of the windshield used to hold
the rear view mirror.
Butyl A sealant type used in some installations. Comes in tape form and in
liquid form in caulking tubes.
Bullet-Resisting Glass
A multiple lamination of glass with tough clear sheet plastic, usually
at least 1 3/16 inches thick overall, which is designed to stop bullets
from ordinary firearms other than high-powered rifles.
Butt Glazing Installing glass products where the vertical glass edges are without
structural supporting mullions.
Carlite Brand of AG and ARG part produced by Ford Motor Glass Division -
CAR.
Cash Discounts An amount allowed by the manufacturer usually (1-2 percent) which
is deducted from an invoice by the customer when the invoice is paid
on or before the due date.
Ceramic Paint Band
A band painted around the edge and extending onto the surface of an
ARG part which is baked onto the glass. (also known as a "Frit").
Channel U-shaped metal or plastic sometimes lined with felt or other material
(used to reduce wind noise) which provides a track for movable glass
parts on vehicles.
Channel Glazing Installing and sealing glass products into U-shaped glazing channels
using removable stops.
Chemically-Strengthened Glass
Glass which has undergone ion-exchange to produce a
comprehensive stress layer.
Clips Devices used to attach decorative molding to the vehicle body.
Coating Void A small round area in the coating where there is an absence of
coating.
Corner On/Off Angle formed by the intersection of two adjacent edges; an excess
(corner on) or a lack (corner off) of glass can sometimes occur.
Crinamex Brand name for windshields produced by Vitro-CMX.
Cullet Broken glass, excess glass from a previous melt, or edges trimmed
off when cutting glass to size. Cullet, in some regular proportion, is
an essential ingredient in the raw batch charge in glassmaking in that
it facilitates melting.
Curetime The time necessary for the adhesive or sealant to dry or completely
set.
Curtainwall An exterior building wall which carries no roof or floor loads and
consists entirely or principally of metal or a combination of metal,
glass and other surfacing materials supported by metal framework.
There are two basic types:
Custom: Walls designed specifically for one project and using parts
and details specially made for this purpose.
Standard: Walls made up principally of parts and details
standardized by their manufacturer and assembled in accordance
with either the architects design or the manufacturer's stock
patterns.
Dauber Tool used to apply urethane primer.
Dead Load Load force due to glass weight.
Delamination Term used to describe glass separating from the vinyl inner layer in a
laminated part.
Deposit (incoating)
Opaque contamination on the surface of the coating.
Desiccant An extremely porous crystalline substance used to absorb moisture
from within the sealed air space of insulating glass unit.
Dig A short, deep scratch or puncture of the glass surface.
Disbursement Memo
A company document which must be completed and attached to
invoices before they are paid which includes instructions for the
proper accounting of the payment.
Diversity Antenna
Combines reception of 2 or more antennas on vehicle. Typically they
work together to achieve superior radio reception. The antennas can
be in multiple locations on the vehicle.
D.O.T Number Code number issued by the US Department of Transportation, usually
located in the logo or bug, which identifies the manufacturer part.
Double Glazed Windows
A common term for insulating glass units, which feature either air or
a safe, colorless, odorless gas tightly sealed between two panes of
glass. For increased energy efficiency, one or both pens can be
treated with a low-E coating.
Double Strength In float glass, approximately 1/8-inch thick.
Dry Glazing A method of securing glass in a frame by use of a dry, preformed
resilient gasket , without the use of a compound.
Edge Clearance Nominal spacing between the edge of the surface of the glass product
and the glazing channel base.
Edging Grinding the edge of the flat glass to a desired shape or finish.
Electrochromic Mirror that senses light and automatically dims, typically will have a small dot
about the size of a pencil eraser located in the bottom center of mirror.
Emissivity The ability of a material to emit radiant energy. Emittance is the ratio of the
total radiant energy emitted by a given surface to that emitted by an ideal
black body at the same temperature. To emit is to give out, to discharge—in
the case of glass, essentially, to re-radiate absorbed energy (heat).
Encap Encapsulated, glass is "encapsulated" or surrounded by a molding.
Encapsulation Injection molding around the perimeter of an AG part.
Excess Transfer The process of transferring excess inventory from one location where it is not
needed to another where it is more likely to be sold.
Exterior Glazed Glass set from the exterior of the building.
Fill Rate The percentage of items shipped compared to the number ordered.
Filler Strips Strips inserted into a gasket which locks the gasket and glass in place. Also
know as locking strips.
Flake Chip An edge condition where the removal of a shallow amount of glass from the
surface face or the edge face results in an area void of glass that is shell-like in
appearance. Width is defined as the maximum dimensional extent of glass
removed from the face when measured perpendicular to the edge.
Flare A sharp, thin extension of glass from a cut or broken glass edge where the
fracture tends to approach a plane parallel to the surface.
Flat Glass A general term that embraces float glass and various forms of rolled glass (as
contrasted with fiber glass, containers, etc.).
F.O.B. The term used to define the point or location at which the manufacturer
considers a product delivered to the customer.
Fully Tempered Glass
Glass that has been tempered to a high degree. Specified by ASTM C 1048
(Kind FT) as having a surface compression of not less than 10,000 pounds per
square inch (psi) or an edge compression of not less than 9,200 psi. Fully
tempered glass, if broken, will disintegrate into many small pieces (dice) which
are more or less cubical. Fully tempered glass is four to five times stronger
than annealed glass of the same thickness.
Gasket Preformed shapes, such as strips, grommets, etc., of rubber or rubber-like
composition, used to fill and seal a joint opening either alone or in conjunction
with a supplemental application of a sealant.
Glass An inorganic product of fusion which has cooled to a rigid condition without
crystallizing. It is typically hard and brittle and has a conchoidal fracture. It
may be colorless or colored, translucent, or opaque by the presence of
dissolved, amorphous, or crystalline material.
GPS Global Positioning System.
Hardware Parts added or attached to AG part. Also known as "attachments".
HD Heavy Duty.
Heat-Absorbing Glass
Glass for intercepting appreciable portions of radiant energy, especially solar
energy, in specific transmittance values as defined in ASTM C 1036. It is
obtainable as float and patterned glass.
Heat-Resisting Glass
Glass able to withstand high thermal shock, generally because of low coefficient
of expansion.
Heat-strengthened Glass
Glass that has been heat-treated to a state less than that of fully tempered
glass. Specified by ASTM 1048 (Kind HS) as having a surface compression of
not less than 3,500 pounds per square inch (psi) or an edge compression of not
less than 5,500 psi. Heat-strengthened glass is approximately two times as
strong as annealed glass of the same thickness and has a much increased
thermal endurance. Heat-strengthened glass is approximately two times as
strong as annealed glass of the same thickness and has a much increased
thermal endurance. Heat-strengthened glass is considered a safety glass and
will not completely dice as will fully tempered glass.
Heat-Treated Term sometimes used for both fully-tempered glass and heat-strengthened
glass.
Heated AG Parts Parts which have a heater grid (backlights) or metallic coating (windshields)
used to defrost the part.
Heated Wiper Park Area
The windshield contains a heater grid across the lower part of the glass.
Hermetically Sealed Unit
An insulating glass unit made up of two liters of glass, separated by a spacer,
or equivalent product (at the full perimeter), which is filled with a moisture
absorbing material. The unit is then completely sealed, creating a moisturefree,
clean, dead-air space.
High-Transmission Glass
Glass which transmits an exceptionally high percentage of visible light.
High Modulus An adhesive that provides extra strength to resist torsional twisting and helps
maintain the structural integrity of the vehicle by enabling the windshield to
stiffen the support of the vehicle body.
Hot Shot Customer order filled and sent for delivery immediately after the order is
received.
HUD Heads up display, the instrument panel is illuminated on the windshield. Name
for technology in which the vehicle's instrument readings are projected onto
the windshield. The replacement windshield for vehicles with HUD is more
expensive than for those which are not HUD equipped.
Infrared Solar coated.
Insulating Glass Insulating glass refers to two pieces of glass spaced apart and hermetically
sealed to form a single glazed unit with an air space between. Heat
transmission through this type of glass may be as low as half without such an
air space. It is also called Double Glazing.
Inter Wiper Intermittent wiper, variable speed.
Interchange Two or more parts with different NAGS numbers which are used for the same
fit application.
Interior Glazed Glass set from the interior of the building.
Interlayer A layer of standard or polycarbonate-compatible polyvinyl butyl or of urethane,
used to bind two or more pieces of glass or glass and polycarbonate sheets
onto a laminated unit.
Item Number An internal part number assigned by the BMS to every part or product carried
by the company.
Knife A tool used for cutting the adhesive or sealant to allow for the removal of an
AG part from the vehicle.
Knote A small transparent body of incompletely assimilated glass.
Laminated Glass A type of safety glass produced when a layer of vinyl or PVB is bonded between
two or more pieces of glass to produce a single unit.
Lead Time The length of time it takes for a manufacturer or distributor to produce or pull
an order for products, plus delivery time - usually measured from the day an
order is placed to the day it is delivered.
Leading Edge
Void
An area at and parallel to the edge that is not coated with ceramic frit.
Standard characteristic of roll coating equipment.
Light Sensor A sensor usually located on the windshield that senses the absence of light and
turns the head lights on automatically.
List Price The price to which discounts are applied to calculate the net price.
Live Load Load force due to weight of non-permanent attachments such as people,
glazing rigs, and/or washing rigs.
Lite A single pane of glass or AG part.
LTL Less than a full truckload shipment.
LOW-E or Low-Emissivity
Is to have a low rate of emitting (radiating) absorbed radiant energy. The
radiant energy (heat) is, in effect, re-radiated toward its source.
Mirror Button Adapter
(See "Button") Usually a plastic adapter used to permit the replacement of the
rearview mirror when the button supplied on the windshield does not fit the
rearview mirror bracket.
Molding Similar to "Gasket" - fitted around the glass to finish or "trim out" an
installation.
MOPAR Chrysler brand AG/ARG-MOP.
Monolithic A glazing assembly construction consisting of only one lite or pane of glass,
polycarbonate, acrylic, or plastic.
Mullion An intermediate connecting member used to "marry" two or more windows or
patio doors together in a single rough opening without sacrificing air or
watertight performance. A mullion also can give added strength to connections
for structural stability.
Muntins A decorative design in cut-ups of glass lites. Examples:
1.) Painted muntin grids applied to an interior lite of glass in a sealed insulating
glass unit to simulate cut-ups of glass lites either in colonial or diamond
patterns.
2.) Use of aluminum muntin bars between lites of glass units to simulate glass
cut-ups.
3.) Use of actual vertical and horizontal bars to divide a window into smaller
lites of glass. The bars are termed muntin glass.
NAGS National Auto Glass Specifications. The company which assigns NAGS numbers
and suggested "list" prices which are customarily used for ARG. NAGS Catalogs
list the parts and applications. NAGS Calculators show the "NAGS List Prices".
NAGS List Price (See NAGS) The list prices in the NAGS Calculator which are calculated by
applying a formula to the manufacturer's "Truckload List Price".
NAGS Multiplier A factor applied to the NAGS list price to calculate cost and selling prices.
Net Price Actual price paid for a part or product after all applicable discounts are applied.
Net Price Addendum
The list of parts which are net priced by the company instead of using the
NAGS Calculator as the basis for establishing selling prices.
Night Vision An infrared camera mounted on vehicle which detects objects further ahead
than the headlights and will display the images on a section of the windshield.
Non Conductive Urethane adhesive that prevents the flow of electricity between the glass and
metal of body, some manufactures mandate this urethane to prevent
degradation of performance to electrical systems built into the glass such as
antennas, cell phones, etc…
Obsolescence
Credit
A credit or reduction on the invoice - usually based on a percentage of dollar
purchases of tempered parts - given by most ARG manufacturers to reduce the
distributors financial exposure resulting from parts becoming obsolete.
Obsolescence Policy
Instructions which describe the company's policy including the proper inventory
accounting for obsolete AG parts.
OE/OEM OE means Original Equipment and is a part or product made by the OEM
(Original Equipment Manufacturer). OEM's may also produce many non-OE
parts, which are usually described as "Original Equipment Quality".
PAAS Pre-applied adhesive system. A bead of urethane that is applied to the inside
border of windshield that requires activation during installation.
Paint Band See "Ceramic Paint Band."
Patterned Glass (also Rolled or Rough Rolled Glass) One type of rolled glass having a pattern
impressed on one or both sides. Used extensively for light control and
decorative glazing.
Perpetual Inventory
The record of parts in inventory valued at standard cost and updated when
parts are added and removed.
Pinchweld The metal flange in the vehicle opening where AG is installed.
Pinhole Small round area where there is an absence of coating.
Polished Wired Glass
Wired glass that has been ground and polished on both surfaces.
PPV See "Purchase Price Variance".
Prefix Codes (DW, DV, DT, FW, FB, etc.) Prefixes of ARG parts which denote the application,
for example DW=Domestic Windshield. For a complete listing and definitions
refer to the NAGS catalog.
Premium Part Original equipment part which normally carries a higher NAGS list and
truckload list price then the same part number produced by other
manufacturers.
Priming Sealing of a porous surface so that compound will not stain, lose elasticity,
shrink excessively, etc., (because of loss of oil or vehicle into the surround.) A
sealant primer or surface conditioner may be used to promote adhesion of a
curing type sealant to certain surfaces.
Privacy Parts Description used for parts which have a coating added to the exterior surface of
the glass to produce a mirror like reflection when viewed from the outside of
the vehicle. See the NAGS Catalog for complete listing and definitions. Also see
"Batch Privacy" glass.
Processed Glass Glass in which the surface has been altered by etching, sandblasting, chipping,
grinding, ceramic-enameling, etc., to change its light diffusion or to give
decorative effects. Either or both surfaces may be so treated. Also glass which
has been further treated (edgework, tempered, stained, etc.) after forming.
Proprietary PartsTerm used for part numbers which are produced by only one manufacturer.
With no competition for these parts, the manufacturer has more control over
selling prices.
Purchase Price
Variance
The difference between the net price of product and the inventory (account
511) value at standard cost.
Purchase
Register
A monthly listing of invoices charged to each location.
Pyrolytic Coating A coating applied during the manufacturing of the glass itself. Because they are
actually part of the glass sheet, pyrolythic or "hard coat" surfaces are very
durable and require no special handling.
Quarterlite Side glass part which is not part of a door and closest to the backlite.
Rabbet Depth The depth of the glazing pocket. The minimum rabbet depth must be equal to
the minimum recommended edge bite on the glass plus the minimum setting
block height.
Rain Sensor Sensor usually located on the windshield that senses rain & turns the wipers on
or automatically adjusts the speed the wipers.
Reciprocal
Pricing
Usually an agreement between two distributors to sell "buyouts" to each other
at the same prices.
Reflective Glass Glass with a reflective surface film to reduce heat and light transmission.
Re-Pack Term used for a windshield pallet which contains several different part
numbers.
Reject Credit Similar to "Obsolence Credit" in the way it is issued - is used to credit the
distributor for expected damage or defects in a shipment of windshields.
Restocking
Charge
A charge of 10-15 percent for returning a part to a distributor.
Retail Transfer
Price
The price retail locations pay for materials purchased from distribution locations
and is set by Corporate.
Reveal Molding See "Molding".
Rolled Glass Glass formed by rolling including patterned and wired glass. As glass is drawn
horizontally from the tank, figured, engraved, and etched, machine rolls
impress a pattern on the surface of the glass, varying from almost smooth to
deeply marked geometric, fluted, or random overall designs. It is made 1/8-
inch to 3/8-inch thickness.
Safeguard Another Chrysler brand identifier - see MOPAR.
Safety Glass Glass which has been treated using processes, such as laminating or
tempering, that should result in reduced risk of injury when broken.
Sandblasted
Finish
A surface treatment for flat glass obtained by spraying the glass with hard
particles so as to clip out and roughen one or both surfaces of the glass. The
effect is to increase obscurity and diffusion, but can make the glass fragile and
hard to clean.
Sash The frame, including muntin bars when used, and including the rabbets to
receive lites of glass, either with or without removable stops, and designed
either for a face glazing or channel glazing.
Sealant Compound used to fill and seal a joint or opening, as contrasted to a sealer
which is a liquid used to seal a porous material.
Scratch Damage to the glass surface in the form of a line with length but little or no
appreciable width.
Scratch (in
coating)
A void in the coating which has length but little or no appreciable width.
Shaded or Shade
Band
An area at the top of the windshield where the vinyl inner layer has been tinted
to reduce glare.
Shading
Coefficient
Is the ratio of solar heat gain passing through a glazing system to the solar
heat gain that occurs under the same conditions if the window were made of
clear, unshaped double strength window glass. The lower the number, the
better solar shading qualities of the glazing system.
Shelf Life Used in the glazing and sealant business as referring to the length of time a
product maybe stored before beginning to lose its effectiveness. Manufacturers
usually state the shelf life and the necessary storage conditions on the
package.
Sidelite Side glass part which is not part of a door and is usually tempered safety glass.
Sight Line Imaginary line around the perimeter of lites or panels corresponding to the top
edge of stationary and removable stops, and the line to which sealants
contracting the lites or panels are sometimes finished off.
Single Glazing A single pane of glass.
Sleeves Corrugated envelopes used for the individual packaging of tempered glass.
Sliders Usually refers to the sliding back glass assembly in pickups, and to van
windows with a movable section that slides (to open or close) in a track instead
of being hinged or being part of a mechanism used to "roll" the part up or
down.
Sloped Glazing A single pane of glass.
Solar Absorbing Blocks out UV & infrared rays reducing sun damage & keeping the inside of
vehicle cooler.
Solar Coated Inside surface of the outer layer of non-solar glass is coated with UV reflective
film before the inner layer is sandwiched between the inner & outer layer of
glass.
Solar Glass (or Solar Control Glass) Manufacturers term for glass that has been treated or
specially tinted during the production process to reduce the sun's rays to
protect, and reduce heat buildup in the vehicle interior.
Spacers (Shims) Small blocks of composition, neoprene, etc., placed on each side of
lites or panels to center them in the channel and maintain uniform width of
sealant beads. Prevent excessive sealant distortion.
Spandrel That portion of the exterior wall of a multi-story commercial building that
covers the area below the still of the vision glass installation and the area
above the head of the glass installation below.
Spandrel Glass Heat-strengthened flat glass with a colored-ceramic coating adhered to the
back by a heat fusion process. It has double the strength of annealed glass of
the same size and thickness, enabling it to withstand greater uniform loads and
thermal stresses. Spandrel glass cannot be re-cut after heat strengthening. It is
used as fixed opaque colored glass on buildings in front of floor slabs and
columns. It is available in a wide array of colors.
Sputter Coating A micro-thin metallic oxide coating vacuum-deposited on the surface of glass
after manufacturing. Sputter coatings are vulnerable to moisture and abrasion
and must be enclosed in sealed insulating window units.
Stain Attack of a glass surface by water or other solutions involving:
A. Leaching of sodium ions to the surface of the glass.
B. An increase in pH on the glass surface.
C. The breaking of silica bonds in the glass structure.
If this process advances to c, the glass will have a blotched, streaked, cloudy
appearance and cannot be restored to pristine condition short of grinding and
polishing the damage away, a process that is generally more expensive than
simply replacing the glass.
Standard Cost The weighted average cost of parts expressed as multiplier applied to NAGS list
prices for each category (DW, FW, DT, etc.).
Stones Crystalline contaminations in the glass, usually pieces of undissolved or
crystalline silica, bits of refractory, or crystals, due to devitrification. Stones are
detrimental to appearance and may seriously weaken the glass, particularly if
present in highly stressed areas.
Structural
Glazing
Is based on the use of a sealant not only as a weather seal but also for the
structural transfer of loads from the glazing panel to its perimeter support
system. Only certain specific sealant formulations are suitable for this purpose.
Structural
Glazing Gaskets
Cured elastomeric channel-shaped extrusions used in place of a conventional
sash to install glass products onto structurally sprouting sub-frames, with the
pressure of sealing exerted by the insertion of separate lockstrip wedging
splines.
T-Part An AG part which is laminated or tempered and is flat - not curved.
Tempered Glass Glass which has been through a heating/cooling process which strengthens the
part and causes the part to break into smaller pieces when broken.
Terms Conditions for payment of the vendor invoice usually including the cash
discount allowed and the number of days allowed before payment is due.
Third Visor Frit A solid black ceramic frit that comes down in the center directly above the rear
view mirror.
Tinted Glass Color has been added to "tint" the glass - usually green or blue, but also gray
or bronze (brown), as opposed to clear which has no color added.
TL Abbreviation for "truckload".
Total Solar
Absorption
The percent of incident solar radiation that is absorbed by a glazing system.
Total Solar
Reflectance
The percent of solar radiation that is reflected by a glazing system.
Total Solar
Transmittance
The percent of incident solar radiation that directly passes through a glazing
system.
Transfer Price See "retail transfer price".
Transmittance The ability of the glass to transmit solar energy in the visible light, the
ultraviolet, and the infrared ranges, centrally measured in percentages of each.
Triple Glazing Windows that are made of three panes of glass with air space between the
lites, and may be filled with argon or other gases for increased energy
efficiency.
Truckload In ARG refers to a full trailer load of glass or related products, and meets the
minimum quantities or weight as defined by the vendor to qualify for the lowest
price available to the customer.
Truckload List
Price
The price of a part which is included in the manufacturer's "Truckload
Schedule" or "Product Offering" which is used as the basis for sales to
distributors. The most commonly used truckload schedule in the industry is
PPG's.
U-Value A measurement of heat transfer due to outdoor/indoor temperature differences.
It is used almost exclusively to describe the heat loss though a material.
Technically, it represents the amount of heat passing through a square foot of
glass in one hour for every 1 degree Fahrenheit temperature difference. The
lower the U-value, the less heat transfer.
Unit Term normally used to refer to one single assembly of insulating glass.
Urethane An adhesive/sealant system or "kit" used on late model vehicles for glass
installations which are required to enhance the strength of the installation
and/or the overall structural integrity of the vehicle.
Vendor
Designator
Such as CMX, MOP, CAR - Part of NAGS number used to identify the brand or
manufacturer of the part. Refer to the NAGS Catalog for a complete listing and
definitions.
Visible Light
Transmission
Is the percent of total visible light that passes through a glazing system.
Visible Light
Reflectance
Is the percent of total visible light that is reflected by a glazing system.
Weeps Drain holes in the sash to prevent water accumulation, condensation, rain,
cleaning, etc.
Windload Force exerted by winds on building panels and completed structures; may be
inward (positive) or outward (negative). Outward forces generally occur on the
leeward sides of buildings.
Windshield The front window in a vehicle which is made of laminated safety glass.
Wired Glass Flat rolled glass having a layer of meshed or stranded wire completely
imbedded as nearly as possible to the center of thickness of the sheet. This
glass is obtainable as polished glass (one or both surfaces) and patterned
glass. Approved wired glass is used as transparent or translucent fire-retardant
glazing, sometimes as decorative glass, or as security glazing. It breaks more
easily than unwired glass of the same thickness, but the wire restrains the
fragments from falling out of the frame when broken.
Work Life The time during which a curing sealant (usually two compounds) remains
suitable for use after being mixed with a catalyst.
Write-down Reserve
A reserve set up to cover future inventory write-downs.
Write-down Part of the accounting procedure used for the devaluation of inventory on the
company's books when it has lost its original value due to damage or
obsolescence. See "Obsolescence Policy".
