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Graphical Application offers a comprehensive range of products and services to the Compact Disc Industry.
Click on the link below to find out more about the products and service we offer.
UV Measurement Equipment
Silkscreen Machine
Stencil Making Services
Used Machine
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A glass master, also
referred to as a 'stamper' is used to
punch all of the data pits into a CD or
DVD during the process of replication.
The reason why it is called a glass
master is because the information is
copied onto a special chemical coating
on a circular block of glass. The block
of glass is actually much larger than a
CD (they are typically 240mm in diameter
and 6mm deep) to facilitate handling and
to avoid the sensitive data area from
being touched or damaged.
The glass master is polished until it is
ultra smooth as even microscopic
scratches can affect the quality of the
CDs being produced.
Glass mastering is performed in a Class
100 clean room (10 times cleaner than an
operating theatre). A Class 100
cleanroom is designed to never allow
more than 100 particles (0.5 microns or
larger) per cubic foot of air (typical
office building air contains from
500,000 to 1,000,000 particles per cubic
foot of air). This is because dust,
pollen and smoke particles can all
affect the quality of a CD glass master
whilst it is being prepared, so the
mastering facilities are kept as clean
as possible.
Other mastering consumables includes :
Silane Primer for CD mastering (100 ml)
Brand : ABCR
Thinner Type P (1 Gal = 3.785L)
Photoresist S1818 (1 Gal)
Microposist Developer 351 (5 L)
Nitric Acid (65%-68%) 2.5 L
Sodium Hydroxide (1 kg)
Sulphamic Acid 99% (25 kg)
Nickel Sulphmate (18.93 L = 5 Gal)
Wetting Agent (25 kg)
Neodisher Alka 220 (25 kg)
Nickel Pellet S (6-8 ml) 50 kg
Boric Acid (25 kg)
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Types of Mastering Equipments :
OMP Mastering
ODME Mastering
ODC Mastering
If you have any further question about
our products, kindly e-mail to
sales_sg@graphicalapplication or
technicalsupport@graphicalapplication.com. Our technically trained staff will be glad to
be of service to you.
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