Dow Corning Ci-2001 Reflective Coating Application Tutorial


(light saber buzzing) (upbeat music) – [Voiceover] Dow Corning’s
CI-2001 White Reflective Coating helps improve light output and efficiency of LED lamps and luminaires
when it’s applied onto reflectors, mixing chambers, back light units, and PCB. Mixed with one part sprayable coating provides homogeneous finish with better environmental resistance and less discoloration in some plastics and organic paints and films. This highly reflective optical
coating is easy to apply. It cures at room temperature
to a tough, non-tacky surface. And it’s repairable. It can be applied by spray, flow, dip, or selective coating. Before handling, please read product and safety data sheets
and container labels. Dow Corning CI-2001 coating is designed to be sprayed in industrial
paint spray equipment, standard-pressure paint spray guns, or high-volume, low-pressure spray guns. Product settling may occur
during storage and shipping. You must shake the product
properly in a paint shaker to get the reflective
filler well disbursed. You can also vigorously stir
the product to re-disburse the reflective filler. Either way, the material
must be mixed well and be homogeneous before
and after you dilute it. When diluting Dow Corning CI-2001 coating, Dow Corning OS-20 fluid is the recommended solvent for dilution. For spraying operations,
a dilution of up to 20% is recommended. For safety, we also recommend
grounding all containers during the dilution process. Let the diluted material de-air
for approximately 15 minutes before putting it into
the spray gun container. If possible, select a spray
gun with a least a two-step or a double-action trigger. For air guns, the
optimal fluid pressure is between eight and 20 PSI. Before you begin coating,
spray a horizontal test pattern on paper with the air cap in the vertical position. Hold the trigger open until
the material begins to run. There should be an even
distribution of the material. If not, adjust the pattern width with the spreader adjustment valve. This testing will help
you determine the best distance and speed combination to achieve your best coverage and finish. As a rule of thumb, begin
by testing at a distance of nine to 12 inches from
the gun tip to the sample at a speed of approximately
12 inches per second. If the gun is too close,
waves of coating material may be deposited, but if
the gun is too far away, there might be gaps in the coating layer. Approximately one inch after reaching the end of the sample, reduce the pressure until only
air is expelled from the gun. Maintaining your steady speed, continue the gun movement for
at least five more inches. This last step should keep the gun free from accumulated coating which could cure between
applications and clog the gun. For dip coating operations, the material may be used as supplied. Or solvent diluted if a
thinner film is desired. Dow Corning CI-2001 Coating cures quickly when exposed to moisture in the air. Special precautions
must be taken to prevent moisture from contacting the product. Keep containers tightly closed
with minimal head space. Partially filled
containers should be purged with dry air or other
gases, such as nitrogen. If you are using dip tanks, these should be covered when not in use. Dow Corning CI-2001
White Reflective Coating is formulated to provide adhesion to most common substrates and materials. The tack-free and cure times can be shortened significantly by introducing mild heat
up to 60 degrees Celsius. and 70 percent relative humidity. When using heat, allow
adequate time for the solvent to evaporate before exposing the product to elevated temperatures
in an air-circulating oven. Full adhesion typically
lags behind a cure, it may take up to 48 hours to build and some coatings at 25 degrees Celsius. On certain difficult,
low-surface energy substrates, you may improve adhesion by priming or with special surface treatments, such as chemical or plasma etching. A typical cure for a five mil coating is 10 minutes at room temperature, followed by 10 minutes
at 60 degrees Celsius. And you should never cure
a coating at temperatures above 60 degrees Celsius. The pot-life of Dow Corning
CI-2001 Coating depends on the application method you’ve chosen. Which would extend the pot-life, minimize the coating
material’s exposure to moisture by exposing to dry air or
dry nitrogen blanketing whenever possible. This highly reflective coating
is one of Dow Corning’s innovative, high-performance,
silicone-based materials designed to help you create
next generation lighting. If you have questions about using Dow Corning’s CI-2001
White Reflective Coating for your specific application, we’d love to hear from you and we’ll be happy to help
you find the solution. (upbeat music)

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