General Chemical Corp.
12336 Emerson Dr.
Brighton
Michigan (MI.) 48116, USA USA: 866-623-5600 Overseas: 248-587-5600 Fax: 248-587-5606
Email : sales@strippablecoating.com
Introduction: Protective
Peelable Coating For Silicon Wafers,
Glass, Photomasks, Platter, Optical
Media, Optical Disc Liquid Masking Film
4210
is an easy to apply, strippable
coating to protect substrates
from scratching and marring
during polishing, handling and
storage. Can be applied by
spinning or dipping. Will not
leave a residue.
General Chemical's Disccoat 4210
is a CLEAR water resistant,
Optical Media Protective
Coating, peelable temporary
protective coating which has
many applications. It may also
be used to protect various types
of surfaces during industrial
processing. Disccoat 4210
air-dries quickly, leaving a
tough, yet flexible coating that
is easily removed from a variety
of surfaces.
4210
represents the ultimate in
solvent-based removable coating
technology. It is stabilized
against brittleness and is not
softened or penetrated by most
water-based compounds.
The
two challenges that we have are
non-standardized coating
processes and material costs.
Even though optical disc masking
is guided by very rigid
specifications, each facility
may have its own method of
protecting the finished product.
Some plants do nothing other
than store the nickel stampers
in a plastic CD-type acrylic
box, while others coat with
either a Peelable vinyl resin or
dry plastic film. For those
using spin-coated vinyl films,
there is no standardization for
process cycles (like spin-coat
speed, time, etc.) and processes
may vary between equipment
manufacturers, let alone
in-house built machines.
The
Disccoat 4210 film out-performs
the dry plastic film. Applying
no coating is cheap, but
provides no protection. Disccoat
4210 has some real performance
advantages, especially its
ability to remove water-stains
and moisture related defects.
Moisture related defects, as
measured by loss of electrical
signal read-back of nickel
electroforms, is reduced by 50%.
This is significant since an
optical nickel electroform cost
between $50-75 to produce. A
single application of 4210 at
one of the world’s largest
manufacturing facility, the
world's largest replicator of
compact audio discs), restored
environmentally damaged
(oxidation) nickel stampers,
cutting electrical signal loss
in half.
Solvent Based for quick drying .Silicon Wafers, Glass, Photo
masks, Platter, Optical Media
Blue Tint Lower viscosity,
Excellent water and acid
resistant properties.
Color/Application: Clear,
Brush or Airless spray only.
Water Based Temporary Protective
Peelable strippable Black
Coating For excellent hiding
properties to protect from light
sources For Optical Mirrors,
Silicon Wafers, Glass,
Photomasks, Platter, Optical
Media, Optical Disc And leaves
no oily residues.
Color/Application:
Black Tinted ,Brush or
Airless spray only.
:
General Chemical's water based
and solvent based peelable
coatings are fast drying
Peelable coatings for Optical
Media to protect it temporarily
during Industrial process or in
material handling.
1. I am a manufacturing
engineer responsible for
production of precision
optical components made of
glass and a variety of IR
materials. I am looking for
a product which can be used
to protect finished optical
surfaces during subsequent
processing of a lens.
Ideally I would like a
product which can be easily
applied with a fairly
uniform thickness (possibly
by brushing it on) without
significant equipment. I
would like it to be quick
drying, durable and water
resistant. Additionally – I
am looking for a coating
which can be fairly easily
removed once the optic is
completed through the
fabrication process. Do you
have any products which
would meet these
requirements?
Our recommendations :
Discoat 4210, clear tinted blue
and Stripcoat 4710, black, are
solvent based peelable coatings
that cure upon solvent
evaporation to a tight water
resistant film. Both products
can be applied with brush, flow
or dip. These coatings are
removable by peel.
2. I
am looking for a protective
coating I can brush on a
polished surface to protect it
during manufacturing. It seems
that a customer with similar
needs used Stripcoat 4710 with
good results. Can you send me
pricing for a small sample of
this product for us to evaluate?
I would also like to know the
volume price in case we see good
results.
3.Hi, We are looking
for a protective coating for our
opthamics lenses (plastic and
acrylic) to protect the surfaces
during processing and
transportation. Ideally we would
like a product which can be
easily applied to the lens
surfaces by either spraying or
dipping, without significant
investment in equipments. The
product should be quick drying
and can be easily removed
without additional cleaning. Do
you have a product that will
meet our requirements?
Our recommendations :
Discoat 4220 is a water based
peelable coating that peels very
well from acrylic substrates.
This product can be applied by
dipping. For qucker
drying ,Need to remove water by
installing fans blowing warm dry
air.
Optical Media Protective Coating For
Silicon Wafers, Glass,
Photomasks,Platter,Optical Media,
Optical Disc.
Disccoat 4210 is solvent based
Optical Media Protective Coating and
Peelable coating . 4210 is
international standard for
protecting of optical media such as
CD and video discs during
manufacturing process. 4210 is very
easy way to apply strippable coating
for the protection of substrates
from scratching and marring.4210 is
useful for substrate protection
during polishing, handling and long
term storage. 4210 is impregnated
with transparent blue dye for easy
visual inspection as well as
identification and is non-staining
and stable to 100 degrees Celsius.
Disccoat 4210
For Optical Media Peelable
coating/ Optical disc
Easily strippable 4210 allows
protection for any optical media
such as CD or optical disc
manufacturing process.
Application:
Optical Media Protective Coating
Disccoat 4210 should be used as
received. It is applied by
airless spray, spinning, roll
coating, or dipping. The sprayed
coating dries to touch in 10
minutes or less, depending on
temperature and film thickness.
4210 should be applied to form a
dry film in the range of 1 to 3
mil (.001" to .003") thick.
Application temperature is
ambient to no lower than 50 F,
as drying times will be
affected.
Spin
coating: apply coating to center
of substrate (quantity
determined by size of area to be
coated). Use a minimum of 300
RPM for approximately one minute
to achieve one mil dry film
thickness. Lower spinning speeds
will require longer (in excess
of 10 minutes) drying time.
Approximate Square Feet Coverage
Per Gallon of General Chemical's
Peelable coatings:
Water Based
coating's Wet
films to Apply
In Mils
4.5
6
9
11
13
14
16
18
21
Square feet of
Coverage per
Gallon
401
267
194
155
129
111
97
86
75
Dry Film Build
Required In Mils
2
3
4
5
6
7
8
9
10
Solvent based
coating's wet
films to apply
6.6
10
13
Square feet of
Coverage/Gallon
250
160
50
Curing:Floor
protection, floor coating
and temporary protective
coating
4210
will cure tack-free within 10
minutes after application. This
is dependent upon temperature,
humidity and thickness of
coating. Deviations from
application section will require
adjustments in the curing times,
as well as in the strip ability
parameters.
Curing may be accelerated by
forced drying at 110 degrees
Fahrenheit for 3 to 7 minutes.
It is
imperative that 4210 be
thoroughly cured and dry, with
no solvent odor being emitted
before an attempt is made to
strip the coating from the
substrate. Substrates should not
be stored in airtight containers
until the 4210 is completely
cured.
Storage:Floor
protection, floor coating
and temporary protective
coating
4210
should be stored in the original
shipping container with
temperatures between 60 and 90
degrees F, in an explosion proof
environment. Containers should
be sealed until needed.
Protection from freezing is
necessary.
Removal:
4210
is readily removed from surfaces
by peeling.
Physical characteristics:
Color:
Blue Tint
Weight:
7.6 lbs/gallon
Viscosity:
100 cps/77 degrees
Fahrenheit
Flashpoint:
40 degrees Fahrenheit
Operating Guidelines:
Results in a reduction of
labor costs.
Once cured, it provides an
extremely tough, uniform
film thickness.
Curing time can be cut
considerably with the use
heat lamps (100F),
circulation of air and other
factors.
Curing time can be cut
considerably with the use
heat lamps (100F),
circulation of air and other
factors.
Safe...non flammable
Suitable for all substrates
including polycarbonates,
plastic and painted surfaces
General Chemical has a complete line
of Peelable Masks to meet your your
challenging requirement. If we do
not have something to meet your
specific requirement, than we will
develop it by working with you to
meet that need for strippable
coating.
:
