Cermark or Thermark Marking Tape, LMM-6018 Black Marking Tape for Metal, 1" x 50 ft Roll 6 oz | Laser Bond 100 Tips Laser Bond 100
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LBT 100 Tips and Q&A


 
SDS for Spray SDS for Paste Laser Settings Safety Aerosol Sheet   Safety Data Sheet

 

   


Questions and Answers

Q: What is the difference between CerMark, TherMark and LaserBond 100? A: They all work with basically the same laser settings to produce permanent black marks; however, when first applied CerMark dries to a paint-like tan color, TherMark dries to a powdery light gray color and LaserBond 100 bonding material dries to a powdery darker gray color.

Q: Can LaserBond 100 be used on different substrate surfaces? A: Yes, LaserBond 100 laser bonding material is an all purpose product that will mark on glass, ceramic, stone and most metals.

Q: I want to try LaserBond 100. Should I use aerosol spray or liquid ink? A:  It is recommended that you start with aerosol spray for test and evaluation purposes.  The aerosol spray cans are pre-mixed and ready to use which eliminates the need to dilute the liquid ink - you only need to concentrate on getting the correct coating thickness and laser settings as shown on the instruction sheet enclosed with each spray can.  Once you’ve tried the aerosol and gotten some experience with spraying it and determining the correct laser parameters, you can switch to foam, bristle or air brush application of the liquid ink when you begin marking larger quantities.  The liquid ink is concentrated and needs to be diluted with denatured alcohol, so please follow the instructions shown on the label.  You’ll already be familiar with the proper coating thickness and it will be easy to switch if desired. There are considerable economic advantages for switching to the liquid ink; since a square inch of aerosol spray costs about $0.06, while a square inch of liquid ink purchased in a 1,000 gram container costs less than $0.02. 

Q.  How do I apply LaserBond 100?  A: It is recommended that the aerosol spray be applied by holding the spray can approximately 10” – 12” from the surface and spraying directly onto it using a side-to-side motion.  The liquid ink can be applied by manually brushing it onto the surface using a foam or bristle brush or by spraying it using an air brush or spray gun.  Always be careful to ensure a smooth and even coat is applied.  Any variation in the coating thickness such as drips, runs or brush marks will translate into variation in the final appearance of the resulting mark.  Spraying usually provides the best results when properly applied.  

Q: What is the best coating thickness? A: A consistently thin, even and smooth coating thickness of 0.001” – 0.002” is best.  A thicker coating will require more laser power and will also decrease the resulting marking resolution.

Q.  How do I dilute LaserBond 100 liquid ink?   A: The liquid ink should be diluted with denatured alcohol as instructed on the label: 1:1 for manual brushing and 2:1 for spraying.  Be sure to stir or shake thoroughly prior to and during use.

Q.  What kind of laser do I need?   A: LaserBond 100 products can be used with CO2, Nd:YAG, DPSS and Fiber lasers.  

Q.  How much power should I use?   A: The power settings that work best for LaserBond 100 laser bonding materials can vary depending on the type of laser being used.  For example, on a 35 watt CO2 laser, marking on stainless steel requires the use of 100% power and 50% - 60% speed.  Marking on aluminum requires 100% power at a much slower speed of 5% - 10% with the same laser.  A more powerful laser will be able to make the same mark using a lower % of power or a faster speed.  Also, brass, copper and other soft, heat conductive metals require higher powers and slower speeds.  These metals will conduct heat away from the marking surface faster than steel or other hard metals, thus requiring more overall laser power to make a mark.  Power settings will vary depending on the laser used and the substrate material being marked, so some experimentation will be necessary in order to achieve the best results.   

 Q:  My marks wash off after laser marking, what am I doing wrong? A:  This is usually due to insufficient overall laser power and/or other laser parameters.  If problems persist, please contact us for more specific technical support.

Q.  Can I get blacker marks with a thicker coating of LaserBond 100?   A: No.  A thicker coating will not make the marks any darker and will only result in more power being needed to make a mark and it will decrease the resolution and detail within the finished mark 

Q:  Is the LaserBond 100 laser bonding material dangerous or toxic? A:  Please carefully read the label and MSDS statement on application and worker safety.

Q:  How should I dispose of excess LaserBond 100 laser bonding material? A:  Please read the MSDS for more information on proper disposal per local regulation.

Q:  Is LaserBond 100 laser bonding material FDA approved? A:  LaserBond 100 materials are not approved directly by the FDA as the FDA's role is to approve final products rather than component materials; however, the FDA has approved many of our customers’ finished medical products such as surgical instruments and implants which have been marked using the LaserBond materials. 

Q:  Why can't the LaserBond 100 aerosol spray cans be shipped via air while the liquid ink products can be? A:  The aerosol cans contain alcohol-based materials and flammable, pressurized gases which are considered a safety hazard on airplanes by various government regulations; domestically (DOT 49 CFR) and internationally (IATA), requiring special packaging, paperwork and  labeling which incurs considerable extra shipping expense; resulting in surface shipment designated as ORM-D which must go by truck within the continental US.  The liquid ink is a non-flammable, water-based product and is not considered a safety risk.

Q:  What do I use to clean up after using LaserBond 100 laser bond materials?   A: LaserBond 100 products can be cleaned up using plain water in your sink.  There is no hazard in allowing it to just go down the drain.

Q:  How long will the marks last?  How tough are they?   A: Marks made with LaserBond 100 laser bonding materials are permanent and generally considered to be as durable as the surface of the substrate material itself.  Physical testing has shown them to be resistant to several common strong acids, bases, organic solvents and extreme heat or cold as well as exhibiting good salt spray resistance, scratch resistance and long term UV resistance.  

Q:  What kind of laser do I need?   A: LaserBond 100 products can be used with CO2, Nd:YAG, DPSS and Fiber lasers.  

Q:  Does LaserBond 100 bonding materials work on glass and ceramic?   A: Yes, LaserBond 100 is an all purpose laser bonding material; however, glass and ceramic are very brittle and heat sensitive materials which require lower power and slower speeds.  Please consult our laser setting charts for further guidance and information.  It usually takes considerable experimentation to achieve good marks, but satisfactory results have been reported in most cases.  

Q:  Will LaserBond 100 bonding materials work on lacquer coated metals like brass?   A: No.  If the metal has a protective coating on it, the coating must be removed before it can be marked.  Most protective coatings will interfere with the process chemistry and the LaserBond 100 will not be able to bond to the surface of the metal.   

 Q:  Will LaserBond 100 bonding materials work on anodized aluminum?   A: Yes, LaserBond 100 will work on some anodized aluminum surfaces, however, the types of  anodize coatings vary significantly as do the aluminum alloys in the substrate, so they can prove to be very difficult to mark.  It usually takes considerable experimentation to achieve good marks, but satisfactory results have been reported in many cases.  

Q:  Will LaserBond 100 bonding materials work on stone surfaces?   A: Yes, LaserBond 100 will work on polished stone surfaces like granite and marble; but most stone surfaces are rough and quite porous so a protective clear acrylic coating (Krylon) must be applied to the surface so the LaserBond 100 laser bonding material will not be absorbed into the stone and cause a permanent stain or discoloring.  It usually takes some experimentation, but satisfactory results have been reported in most cases.

Q:  How should I store LaserBond 100 products and for how long? A:  All LaserBond 100 products should be stored in an upright position with the lids tightly closed.  They are guaranteed for one (1) year from date of purchase; however, they should continue to work well for years to come provided they have been stored properly.

Q.  Why do I have to shake or stir the LaserBond 100 products before and during use?   A: All LaserBond 100 products contain heavy metal pigments which will settle quickly if not stirred or shaken before and during use.  This is especially important in order to achieve a thin and even coating.

Q:  How do I know when I’ve sprayed the right amount LaserBond 100 material? A:  Hold the spray can or air brush 10 - 12 inches from the substrate surface.  It is important that the LaserBond 100 is applied to obtain an even and thin coating, using a side-to-side motion.  Applying LaserBond 100 may require a little practice to obtain the correct coating thickness – which should be 0.002” - .003” (0.05mm) thick.  A good exercise is to draw a line on white paper using a black marker and then spray only as much LaserBond 100 as needed to make the line disappear. 

Q:  How do I keep the nozzle clean on the LaserBond 100 aerosol spray can? A:  After use, the spray can nozzle should be cleaned by inverting the can and spraying until the mist becomes clear. Any excess material on the nozzle should be removed with water.  The nozzle can be removed and soaked in warm water or alcohol if spraying difficulty is encountered or the nozzle becomes clogged.

Q:  How does the Satisfaction Guarantee work? A:  If you’re not satisfied with our product allow us the opportunity to understand the problem as most of the time it’s only a matter of power settings or improper use of the LaserBond 100 product.  After filling out our online survey and providing a photo of the problem, our product specialist will contact you and help you.  If you are still not satisfied, we will provide a credit for the amount paid for the LaserBond 100 product toward the purchase of a similar product from Jorlink (not to include freight charges).

 

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LaserBond Tips-

When using LaserBond 100 on glass and ceramic, lower power and slower speeds must be used because the glass cannot withstand the instant thermal shock of higher laser power - regardless of the speed at which the laser spot may be traveling.  Higher quality glasses (optical glass and lead crystal) are better able to withstand the thermal shock, however, most glass products are made from cheaper types of glass like float or soda-lime (window glass and microscope slides) which micro-fracture quite easil

The thickness of the LaserBond 100 coating is critical because you want the CO2 laser energy to be mostly absorbed by the coating and provide just enough heat at the glass surface to fuse it.  Any additional (higher) CO2 laser power will go down through the coating into the glass and create micro-fracturing - which will cause small pieces of the glass to pop or fall out of the mark and the darker contrast will be diminished or lost. Obviously, this in not such a problem with Nd:YAG or fiber lasers - as the 1 micron energy is not absorbed by the glass; however, you must still be careful not to use too much laser power and thermally shock the glass.

The optimal thickness for the coating is approx. 0.05 mm.  A thicker coating only requires more laser energy to get the heat down to the glass surface and does not make the mark any darker.  This is the reason that determining the proper laser settings is so critical.  Every laser is slightly different and each one must be fine tuned when working with glass.  The same is true for ceramic, but the glaze is usually more durable and the settings are not as critical.  Since metals are much stronger and more durable, there is a much wider range for the laser settings that will work well and achieve good results.

 

Cermark Tape LMM6018, Marking Tape 1"
Cermark Tape LMM6018, Marking Tape 1"
12/11/2013
MLMM6018.LF1
GSLA_LMM-6018.1
$136.00

 

Tape Notes: Black Marking, for Metal, 1"x50 ft Roll 6 oz
Export Notes: HTS#: 3824.99.9297

Tape, Cermark \ TherMark:

Certificate of Compliance: FERRO Inc. (‘seller”) warrants Cermark™ branded laser marking materials to be free from defects in materials and workmanship under normal use, and to have an effective shelf-life under normal use, for a period of six (6) months from the date of invoice.  The shelf-life will be longer as long as the product is kept air tight and liquefied.

Recommended use: LMM6018.LF is a self-adhesive, paper-backed tape designed with similar pigments and formula as our liquid LMM products. It works well on most metal surfaces, offering a dry processing alternative to those not interested in or unable to work with wet products. It is also easier to use: the tape delivery system insures that a consistent layer of marking material is present on the substrate, entirely removing the variables of dilution and coat thickness.
Additionally, LMM6018.LF is TherMark’s recommended product for marking on clear or colored anodized metal. LMM6018.LF’s unique capability of marking on top of an anodized layer, rather than through it, is a major step forward in marking anodized surfaces. An important point in considering LMM6018.LF is the speed of marking which is significantly slower than for liquid/paste products. The main reason for this decrease in speed of marking is the thickness of the tape (both material and paper backing), which slows down the heat transfer process such that more time is required for the laser to fuse the ink to the substrate.

If you have a cycle time requirement per part, speed may be a relevant factor in deciding if LMM6018.LF is the right product for your application. For high volume, inline manufacturing jobs, TherMark recommends its LMM200 non-adhesive, PET-backed tape.

Important Note: This tape is only available from TherMark and TherMark authorized distributors. It is a different product than the LMM6018 (non-LF) tape sold by Ferro and their distributors. TherMark discontinued the old thicker tape with the release of this new and improved product. If you used that product without success in the past, we urge you to give this product a try.

Recommended substrates: LMM6018.LF is a fairly flexible product which is recommended for many metals, including those which are anodized. The following list is made up of substrates on which LMM6018.LF works well. This list is not exhaustive, however, so if your substrate does not appear on the list, this does not mean LMM6018.LF will not mark it.

 

 
Stainless Steel Chrome Plating
Stainless Steel - Bright Annealed Nickel Plating
Galvanized Steel Gold Plating
Brass Titanium
Aluminum Pewter
Anodized Aluminum  

Lasers that work: LMM6018.LF works well with both CO2 and solid state lasers. When using a solid state laser with LMM6018.LF you may wish to laser bond with pulsed operating mode, as CW operating mode requires a very slow marking speed.

Application method: LMM6018.LF is a self-adhesive, paper-backed tape. Please make sure that the surface to be marked is free and clear of oils, cleaning agent films and dust. 

  • Tape application: To apply, unroll a sufficient amount of tape to cover the surface area to be marked and stick the black adhesive side down carefully. It is important the tape have uniform contact with the substrate surface otherwise some areas may not bond properly during laser marking. Care should be taken to remove any air bubbles from under the tape: smoothing down gently with fingers should be adequate to remove air bubbles. If you wish to mark on a surface that is highly irregular with too many bumps or crevices, self-adhesive tape may not be appropriate because uniform tape to substrate contact may be impossible.

Drying time & methods: LMM6018.LF does not need to dry and can be laser marked immediately after application.

Laser settings: Power and speed are the two most important variables to control when using TherMark laser marking materials with any laser, but there are other relevant variables depending on which laser you are using, such as length of lens, PPI, DPI, frequency, or hatch spacing. To read more detailed information on laser settings please see below.

Product Appearance: LMM6018.LF self-adhesive, paper-backed tape comes on a plastic core. The adhesive side containing the laser marking material is black; the paper backing is a waxy white.

Shipping options: LMM6018.LF tape is a non-hazardous product and can be shipped via ground or air with no additional charges.

Product storage: LMM6018.LF should be stored between 40ºF (5ºC) and 95ºF (35ºC) in a dark, dry place. If you plan to leave LMM6018.LF unused for longer than a week, the roll should be stored in a Ziploc bag or wrapped in plastic wrap to prevent the tape from drying out due to long-term air exposure.

Disposal: LMM6018.LF tape is an environmentally friendly, non-hazardous product. Excess tape material can be easily and safely disposed of by discarding in the regular trash.

In order to make a high quality, permanent mark using TherMark laser marking materials, it is critical to use the correct laser settings which make the materials successfully bond to the substrate. While the “process window” is quite wide for a number of materials being marked, much will depend on the type of laser being used and the settings that have been applied.
 

 

 

 

Type of Laser: The type of laser being used is the primary consideration and the settings between a solid state laser and a CO2 will be entirely different. We recommend a minimum of 30W of power for CO2 lasers, and 10W of power for solid state lasers.  

 

Power Settings: Laser power is a crucial variable that impacts the bonding process. Too much power will cause the material to vaporize and burn; not enough power will lead to the material failing to bond to the surface. All of the power settings on these pages are expressed in Watts (W). Note that many lasers will express power as a % of the maximum system power so that 20W is listed in the software as being 40% power on a 50W laser.

 

Speed Settings: The next most important setting is laser speed, this being the speed at which the beam moves across the material while marking. All of the speed settings on these pages are expressed in inches/second (in/sec). Note that many lasers will express speed as a % of the maximum system speed so that 70 in/sec is listed in the software as being 50% speed on a system that has a maximum speed of 140 in/sec. Some laser software programs express the speed settings in metric units (cm/sec). It is important to note the difference between English and metric units and do the proper conversion when translating the settings to different lasers.

 

Determining the proper settings: While we can recommend basic power and speed settings to get you started (visit your product’s page for downloadable settings charts), it is important for you to determine your optimal settings based on your laser and your substrate. The best method to determine your best settings is to create a power grid on a scrap part, see below for samples
 

 

Other Important Factors

 

Beam focus: In all laser marking systems the laser beam is delivered to the substrate through a focusing lens. It is important that the laser beam is correctly focused to make the process work. Some laser systems come with a set of different interchangeable lenses for focusing. Choosing the correct lens for focusing is equally important to achieve high contrast marks. The spot size of the laser beam at the markable substrate directly depends on the focal length of the lens. This in turn directly affects the optimum intensity and speed of marking. In general, shorter focal length lenses generate tighter focuses and require lower intensities and vice versa. Please follow your laser manufacturer’s recommendations and procedures on beam focusing.

 

Vectoring versus Rastering: Lasers can operate in different modes; the first mode is vectoring, in which the beam is continuously steered around the image in much the same way as a plotter moves. Lasers can also operate in a mode called rastering in which the image is achieved by pulsing dots in much the same way a dot matrix printer works. Both modes will work with TherMark laser marking materials, however, the lasers settings may differ.  

 

Resolution settings: There will also be settings that determine the resolution of the image in terms of how many dots/inch (DPI) or pulses/inch (PPI) are used. These settings may also influence the marking speed with a higher resolution mark taking significantly longer to complete.  

 

Continuous Wave (CW) vs. Pulsed solid state lasers: If your solid state laser has both CW and pulsed operating modes, we generally recommend using CW mode.  Contrary to conventional laser marking logic, when bonding laser marking materials rather than direct laser marking, it is better to apply more steady, lower peak power laser energy than sudden, high peak power bursts.  If your laser does not have CW mode, however, you can mimic this mode by setting your Q-Switch frequency to greater than 50 kHz.  An exception to this rule is LMM6018.LF tape which will respond well to pulse mode.  Additionally, if marking speed is a major concern when laser bonding on metal, you may be able to reduce cycle time by running in pulse mode, as well.  This strategy, however, is not recommended for glass, ceramic, or plastic.

 

Adjusting Your Laser

Testing & Power Grids: The process of establishing the correct laser settings to make TherMark laser marking materials successfully bond can be time consuming because of the number of variables involved. To expedite this process, it is possible to quickly determine the optimum settings using what is known as a “power grid”. In the laser bonding process, the two most important variables are the laser power and the speed with which the beam passes over the material. A power grid is a graphic file constructed to apply different speeds and powers to different parts of the image; this allows the user to test multiple settings with a single pass of the laser, greatly reducing the time taken to find the best setting.

In the picture below, each square in the grid has a different combination of power and speed settings as illustrated in the axes. The Y axis decreases power in increments of 10% from top to bottom (100% power at the top, 30% power at the bottom), while the X axis increases speed in increments of 10% from left to right (10% speed at the left, 100% speed at the right).  

   

As you can see, optimal marking will only take place when the right amount of energy is transferred by the laser. Section (1) shows that when power is too low and speed is too high there is not enough energy to create a bond.

Likewise, section (2) shows that too much power at a low speed causes the material to be removed, possibly causing damage to the substrate surface.

The ideal “process window” lies in section (3) of the photo. Any of these settings will produce excellent marks on the substrate. Picking a setting in the middle will allow maximum latitude for variability between machines and material. In other cases such as a production environment, the fastest speed possible to create a mark may be preferred.

In summary, when using a TherMark product for the first time on a new substrate, it is advisable to run a power grid on a scrap part in order to determine the optimal settings for your laser/substrate/material/coating combination.

 

 

Buy Now:
LMM6018.LF comes in 3 sizes:

 

LMM6018.LF1 1” width x 50’ length
600 sq/in
~$.20 per sq/in $136  
LMM6018.LF2 2” width x 50’ length
1,200 sq/in
~$.20 per sq/in $272  
LMM6018.LF3 3” width x 50’ length
1,800 sq/in
~$.20 per sq/in $409  

 

LMM6018 instructions Download


Cermark Tape SDS Document

 

Jorlink USA, Inc,
3714 Alliance Dr., Suite 100
Greensboro, NC 27407
TEL: (336) 288-1613
eMail: sales@jorlink.com

M-F 9am-5pm EST 
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