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 TECHNICAL INFORMATION
LASER MARKING
PRODUCT
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LMM-6000
Metal Marking Material
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1.0 Product characteristics
LMM-6000 is a laser marking material for metals. LMM-6000 is ethanol
based, which allows for a fast drying time. It can be used on a
variety of bare metal substrates including stainless steel, brass,
aluminum, titanium, tin, nickel, and many more. LMM-6000 will not
work on metals with a lacquered coating.
2.0 Product
characteristics
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2.1
Physical Properties
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| Appearance
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Yellowish gray colored, thick, pancake
batter-like consistency.
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Density
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11.6
– 11.8 pounds/gallon
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Flash
Point
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<66°
F / <18.9° C
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Drying
Rate
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Fast
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2.2
Strengths of Product
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Versatility
and ease of application. High quality, high contrast, durable
marks on a variety of metal substrates.
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2.3
Recommended Application Parameters
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Application
Methods
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Spray
gun, airbrush, paintbrush, Bird applicator, draw down bar
or foam brush.
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Application
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Clean
surface of metal so that it is free of any lubricants or oils.
LMM-6000 Must be applied with an even and thin coat to ensure
a consistent mark.
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Wet
Film Thickness
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0.5-2
wet mils.
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Thinner
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Ethanol,
denatured alcohol or grain alcohol. Isopropyl alcohol or water
should be avoided.
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Recommended
reduction
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For
brushing applications, a 4:1 mix of LMM-6000 to thinner. For
spray applications, a 2:1 mix of LMM-6000 to thinner.
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Suggested
Cleaning Solvents
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Wash
up with water or a wet towel.
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| 2.4
Curing/Drying of Product |
| Drying
Method |
Air
dry, radiant heat, hair dryer or convection oven. |
| Drying
Parameters |
Typically
air dries in about 2 minutes, can be sped up by force drying. |
| 2.5
Laser Marking of Product |
| Laser
Marking Method |
CO2
or YAG laser |
| Recommended
Starting Point for Settings |
CO2:
90-100% power (35 watt laser)
15-30%
speed
500 DPI
/ 500 PPI
YAG:
20-25 watts
10-20
inches/sec speed
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| 2.6 Application
Notes |
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For optimum mark quality, a thin even
covering of LMM-6000 should be used. If the material is applied
too thin, the marks won’t be as dark. If the material is applied
too thick, more power will be required to make the mark. Applying
LMM-6000 may require a little practice to get the right coverage.
It is also important to allow the coating to dry thoroughly.
LMM-600 is formulated to be thick to prevent
settling. It may be necessary to thin the paste before using.
Application method will determine the amount of thinner required,
along with room temperature and humidity. The ratios recommended
above should be sufficient. Keep in mind that the more the
material is thinned, the less active ingredients are being
applied. Overthinning will result in a lighter mark than properly
thinned and applied LMM-6000.
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| 2.7 Marking Notes |
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Marking may require some trial and error
to optimize your laser with a particular substrate. Keep in
mind that all lasers react differently depending on the substrate.
Also, if you are working on a "softer" metal substrate such
as aluminum or brass, more power and/or slower speed may be
needed. Again, you may need to run several tests to optimize
the setting for your laser.
Marking may possibly be done using diode
pumped, fiber and other similar types of lasers.
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3.0 Product Preparation
Insure that the product has been well mixed
prior to use. Some settling may occur during long storage. Paste
temperature should be equivalent to your printing room temperature
prior to measuring viscosity or application.
4.0 Viscosity Test Method
dmc² product viscosity is measured by a Brookfield™
RVT DVIII Rheometer using a #27 spindle at 100 RPM, 24.0 ºC.
5.0 Storage Recommendations
Product must be stored in cool and dry conditions.
The storage temperatures should not be below 5ºC and not exceed
35ºC. Settling could occur if stored for long periods of time. Before
use, products must be stirred thoroughly. Partly used containers
must be tightly sealed after use. If stored as recommended, a minimum
shelf life of six months after the production date is guaranteed.
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