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Galvanized
Indicates steel or iron that has been protected by a zinc coating. The galvanized
coating protects the underlying metal 15-30 years, but requires a special primer
before coating.
Gauge (swg)
A method for measuring the thickness of sheet metal. In the sign industry,
most sheet metal ranges from 10-26 swg, where 10 swg is approximately 3mm
thick. The higher the gauge number, the thinner the sheet.
Gilding
Considered by many traditionalists to be the highest form of sign art, gilding
is the application of thin metal sheets (see gold leaf) to glass, signs
and vehicles. After the work surface is clean and the design is marked out,
a gelatine sizing is brushed on the area to be gilded. The gold leaf is
then carried to the work site through the use of the gilder`s tip and static
electricity. After the entire area is dry, the gold leaf is burnished and
holes and imperfections in the gild are filled. The final step is painting
the backs of the letters (and an outline) if the gild is reversed on a window,
or outlining them if it is a direct gild.
Glare
Glare results from areas of high brightness in the visual field and can cause
discomfort, irritation and obscuration of the message.
Glass sleeves
On some older neon tube installations, clear glass units designed to add insulation
to the electrodes and other wiring.
Gloss
This shine on a smooth surface, such as paint or vinyl. (See also matt).
Gold leaf
Literally, gold manufactured into thin leaves; the gold used in gilding. Gold
leaf comes between sheets of tissue, with each leaf 3 3/8" square. The leaves
are packaged in books of 25, and a cardboard box of 20 books is sold as
a pack. Gold leaf comes in a range of colors and carats, with 14-18 carat
for use on interior applications such as glass. The best gold leaf, 23 carat,
is reserved for exterior work on vehicles and signs.
Grid tubes
Neon tubes laid out in parallel or concentric lines for lighting translucent
signs or channel letters.
Ground Sign
A freestanding sign with no visible support structure.
Grommet (1)
A rubber (or similar) eyelet fitted to the inside of the cable entry hole
on the rear of a sign to protect the cable from chaffing against the metal
edge of hole and, where appropriate, prevent ingress of water.
Grommet (2)
A reinforced metal eyelet found in banners used to receive cords or other
fasteners.
Ground clearance
The shortest distance between the lowest portion of a sign or awning and the
ground.
Ground sign
A free-standing sign that is mounted on poles or braces, without any secondary
support.
GTO Cable
Electrical wire specifically designed to carry the high voltage of a neon
transformer.
Guardian letter
A built up, metal letter with a curved face from highly-polished stainless
steel can be either non-illuminated or have halo illumination to add night-time
impact. [Click here to view example] |
