Chemtronics

  • Using Compressed Air Dusters to clean Electronic Circuit Boards

    As anyone who has ever looked inside electronics devices knows, they collect dust and fuzz like nobody's business. Technicians can tell you that first, electronics in use in virtually any environment from the home to the office are constantly exposed to dust (and, in the home environment, pet hair) and that secondly, the electrostatic charge that any electronics device generates attracts dust like a magnet does iron filings. It doesn't matter if the electronics device is a TV, home entertainment system component or computer, if its been in use any length of time, it'll have dust inside.

    The first thing a tech will do is use a product like Chemtronics ES1017 Dusteres1017es1217 to blow out the dust. Believe it or not, clearing the dust out of a system may actually repair a problem as some dust particles can be electrical conductors, making bad circuit connections and causing issues. Also, clearing the dust and debris out of a system with compressed air enables the technician to work in a clean environment which, in the case of computers that haven't seen a lot of maintenance can be very dirty indeed.

    In those cases, using a product like Chemtronics ES1024 Typhoon Blast Duster or Chemtronics ES1020 Ultrajet Duster with a heavier compressed air spray can make a huge difference. Dust not only can cake over chips and other components but can work its way under components and boards as well. With the higher pressure, that dust can be blown out where using a normal compressed air spray will require several tries to do it or won't do the job at all. Some dust "infestations" can actually leave a layer of fuzz on a circuit board that can literally be peeled away in a sheet before any duster can be used and in severe cases like these, having a high pressure duster is imperative.

    In normal situations, especially when a technician is doing maintenance runs, having an inexpensive duster like Chemtronics ES1217 Economy Duster is the best tool he'll have in his kit. Doing maintenance runs in an office environment is one of those necessary evils that may be boring to do, but saves time and money since keeping computers well-maintained is much easier than trying to repair them later and having a good supply of compressed air makes life a lot easier for a technician as well.

    When working on electronics, dust and debris is an unavoidable issue that any technician can tell you is simply part of the job. With compressed air to blow the dust and junk out of the device, not only can the technician get to work on the problem, using compressed air to maintain a system can actually keep problems from happening in the first place.

  • Using Compressed Air to trouble shoot circuit boards : Freeze Sprays

    Chemtronics_ES1052_FreezeSprayAll too often, troubleshooting a problem with a computer or other device that uses printed circuit boards turns into a long, drawn-out process. That's because figuring out exactly which board in the computer, printer, rack unit or whatever electronic device you're working on isn't always a cut and dried process. While shotgunning the problem by swapping boards out at random until the problem goes away may work, if the problem is a heat related issue in a chip, the problem could easily mask itself, letting the technician think the problem is fixed, only to have it crop up again later. Nobody hates having to come back to a service call or a repair more than the technician.

    One way to track down heat related problems, whether it be a circuit that is broken as components expand because of the heat or a chip that overheats and fails is to use freeze spray. Freeze sprays allows the technician to lower the temperature of different circuit boards, hopefully temporarily correcting the problem and allowing the tech to troubleshoot the system without shutting down and swapping boards. As too many techs know, doing that is too often counterproductive.

    However, you can't simply use some type of compressed air to cool boards. While flipping some aerosols and using the propellant as a cooling agent may work, you may actually cause more damage because of moisture and corrosive chemicals contained in the propellant. Freeze sprays like Chemtronics ES1052 Freeze Spray are designed to be safe for both boards and components and are designed to be used in "live" environments to help troubleshoot problems.

    Furthermore, using a freeze spray like Chemtronics ES1051 ESD-Safe Freez-It Freeze Spray are designed to be used in areas where electro-static dispersal is essential for circuit board protection. Anyone who works with computers and other sensitive electronics knows full well the damage static electricity can do and using a type of spray that causes static electricity can cause far more problems than it solves.

    Having the right tool for the job can be as simple as using something to cool down an overheated circuit to eliminate the issue once and for all. With a great freeze spray, a tech can track down the problem, replace the bad circuit board and have the repair completed within minutes instead of the hours it could take to troubleshoot the problem by shotgunning. Not only is freeze spray very effective when it comes to troubleshooting, its a very cost effective alternative to shotgunning a problem as well. If you're a tech or someone who has to troubleshoot printed circuit boards, having freeze spray on hand can save you a lot of time and a lot of money as well.ThinkingEngineer

  • How does a flux cleaner not leave a residue?

    Flux Cleaner

    When it comes to electronics, making a good connection is beyond important. If any electronic devices is going to work, the connections between components has to be essentially flawless. Of course, we use solder to affix components to a printed circuit board, but to make the best connections possible, solder flux has to be included in the mix to ensure solder flows evenly around the components and the connection. While using rosin core solder is the most common type of flux used, those who use solid core solder and separate flux from a container has to be taken into consideration as well since many automated soldering systems use this method. This leaves a clean-up job for a flux remover after the soldering has been completed.

    Leaving excess flux on a circuit board after assembly presents both manufacturers, technicians and hobbyists with issues. First and foremost, the brown residue simply looks unprofessional, even though once a circuit board is in place, no one should see it again. Secondly, and most importantly, excess flux can cause short circuits and be responsible for intermittent connections that are difficult to troubleshoot.

    That's where flux cleaners like Chemtronics ES1035, ES1631, ES1697 and others come into play. These cleaners are designed to dissolve and remove flux deposits left on circuit boards and components after soldering has been completed. Depending on the type of flux remover used, the resulting residue can either be rinsed off, wiped off or brushed off to leave a clean, flux-free surface. After the process is complete, the board is free from flux residue as well as any chemical residue from the cleaner as well.

    This means you don't have to be concerned about bad connections, intermittent shorts or hard shorts caused by flux build-up. The process is quick, easy to do and cost effective as cleaning a board costs only a few cents compared to the troubleshooting time it would take to do a repair. Electronics manufactures realize the importance of flux cleaners as a part of the manufacturing process. If you're a technician or a hobbyist, you'll want to have a can of flux remover in your kit, ready to clean up after your solder jobs as well.

  • Which Aerosols And Cleaners Work Best?

    03-03-2012-08Cleaning electronics can be tricky with all of the damage which can be caused to the device from dust, moisture or chemicals. While simply using a dusting aerosol might work great in some applications, you might need to have cleaners which will prepare surfaces as well as making sure that your hands are clean.

    Choosing the right Chemtronics aerosols and cleaners for example will help you to get what you need to be able to get the job done. Make sure that you are considering the different kinds for you to get exactly what you will need.

    Aerosols

    The main kind of aerosol you can buy include those which are little more than compressed air. Simply spray these on electrical devices as well as keyboards to get rid of dust, dirt and additional debris.

    You can also freeze items on electrical boards using certain sprays. These make it possible for you to help in drying an adhesive easier as well as making sure that items will not overheat.

    Cleaners

    Cleaners can be used for a variety of different projects. You can use wipes and swabs to clean small devices. You can also use adhesive removers so that you will be able to remove labels as well as other additions to electrical boards.

    Cleaning stencils and other items is possible with the right kinds of cleaning equipment. This will help you to be able to see exactly what you are doing.

    Cleaning the room of all of the dust and debris is also possible with vacuum cleaners. These come in all sizes including those which are small enough to clean your worksite or your work bench. Some attachments will even allow you to be able to clean the small devices you are working on from the debris you might find on it.

    Here is a complete listing of Chemtronics cleaners.

    Solder, Desolder & Rework Equipment

    Desoldering Wick

    ESD & Static Control

    Wipes & Swabs
    Chemicals & Dispensers
    Lotion

    Cleanroom Supplies

    Wipes & Swabs

    Soldering Flux, Paste & Wire

    Solder Mask

    Adhesives & Dispensers

    Conformal Coatings
    Silicones & Sealants

    Chemicals & Cleaners

    Dusters & Freeze Spray
    Flux Removers
    Degreaser
    Lubricants
    Wipes & Swabs
    Hand Cleaners & Lotions
    Contact Cleaners
    Alcohol

    SMT Production Supplies

    Stencil Wipes

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