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LaserSketch
carries three types of laser marking
materials: inks, aerosols, and tapes.
Aerosols and tapes are ready to use as sold,
while inks may require dilution prior to
application for proper consistency. TherMark
inks vary in viscosity due to their
different compositions: some come as liquids
and others as pastes. Recommended dilution
ratios vary depending on these product
differences and your desired application
method. For most applications on most
surfaces, however, the ink should be diluted
enough to flow easily with roughly the
viscosity of “Half & Half”.
 Recommended
thinning agents also vary by product. For
water-based laser marking inks, TherMark
recommends denatured alcohol (preferred) or
chemical free demineralized water
(alternative). Either is acceptable, but
TherMark inks diluted with denatured alcohol
will dry faster than those diluted with
water. For alcohol-based laser marking inks,
TherMark recommends denatured alcohol
(preferred) or acetone (alternative). One
exception to this rule is LMM6012 for screen
printing, which has its own required
thinning agent, 1588 Medium.Denatured alcohol can be purchased in the paint department of local hardware stores, home & garden stores such as Home Depot & Lowes, or found on-line with a simple web search.
TherMark quotes
thinning ratios as “marking material (in
volume units) : thinning agent (in volume
units)”. When working with thinning agents,
remember it is always possible to add more
thinning agent, but it is difficult to
un-dilute, so add thinning agents slowly.
Over-dilution may result in a runny pattern
after application and insufficient pigment
density to create optimal marks. However, if
you over-dilute TherMark laser marking ink
it is possible to reverse the error. By
exposing the over-diluted ink to air for a
time, the thinning agents will eventually
evaporate and the ink will reach the desired
viscosity. Since alcohol-based thinning
agents evaporate especially fast this is
another reason why denatured alcohol is the
preferred thinning agent.
Evaporation may
also result in viscosity change during the
application process, especially when working
with a foam brush and an open lid container.
It is important to monitor the viscosity of
your ink and add more thinning agent as
necessary to ensure consistent application.
Gloves are recommended when handling
thinning agents and are available at any
local hardware store.
Please select a product below for its exact dilution ratios and Application Procedures for TherMark/CerMark Marking Materials
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Dilution Material and Application Procedures for TherMark/CerMark Marking Material: |
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| Last Updated: 02/09/2011 | |