Techspray offers a variety of solvent and water-based ultrasonic cleaners. An efficient ultrasonic cleaner is designed to work in a variety of applications such as electronics cleaning, industrial cleaning, machinery and much more.
For ultrasonic cleaning, safety is our top priority:
Every organization using hazardous chemicals within their facility has the responsibility to equip their facility and personnel to maintain exposure levels below the TLV. Personal monitoring badges can be used to measure exposure of a specific material. Then, depending on the threshold limit and the application, exposure can be controlled with PPE like masks, face shields, respirators, and even coveralls. If they don’t reduce exposure below the recommended limit, you will need to consider a special ventilation hood or even containment booth. As you can see, as the exposure limit gets down to a certain level, the equipment required to safely use the solvent can get impractical. At that point, your best option is to consider a safer alternative.
If the chemistry is a good solvency match to the soil, less sonic agitation will be needed. This allows you to run your cleaning process more quickly, at lower temperature, and lower amplitude, decreasing the likelihood of damaging sensitive components. The following are characteristics to look for when reviewing options:
An ultrasonic cleaning process utilizes equipment to transmit ultrasound waves, generally between 20-40 kHZ. The transducers send those sound waves through the liquid cleaner, which acts as a transfer medium from the transducers to the parts. At very high frequency, the waves may pass over the surface of the parts, creating agitation through a process called acoustic streaming. As the frequency is reduced, it creates cavitation within the liquid. These voids quickly collapse, generating heat and shock waves, which creates agitation in the cleaning process.
A degreaser is intended to clean a surface, so remove contamination. A degreaser is designed specifically to remove oils, greases, and lubricants. Sanitizers are intended to kill various pathogenic agents, like bacteria and viruses. There are materials that can do both, like 70% isopropyl alcohol (per CDC guidelines for hard surface disinfecting), but don’t assume all degreasers will kill pathogens.
The ingredients of a degreaser can vary wildly depending on the product. Generally speaking, they fall into 2 camps: 1) solvent cleaners – this includes alcohols (like isopropyl alcohol, or ethyl alcohol), hydrocarbons (like heptane and mineral spirits), ketones (like acetone and xylene), and more exotic compounds and blends. 2) water-based cleaners – these include ingredients dissolved or blended with water. Which is best for your application depends on the type of soil and various requirements like performance, evaporation rate, toxicity limits, and environmental regulations.
Windex (or other similar glass cleaners) could be considered a very light-duty degreaser. Glass cleaners can remove very light oils, like fingerprints, but will fall very short with heavier oils, greases and lubricants. Techspray offers a foaming glass cleaner (part #1625-18S) and water-based Eco-Shine (1505-QT) for light cleaning, and products like G3 Maintenance Cleaner (1630-16S), PWR-4 Maintenance Cleaner (3400-20S), and E-LINE Maintenance Cleaner (1620-10S) for more heavy-duty oils, greases and lubricants.
N-Propyl Bromide (nPB), Trichloroethylene (TCE) and Perchloroethylene (Perc) are highly toxic chemicals commonly used in degreasers to provide cleaning performance in a nonflammable formula. There are documented court cases where workers suffered major health effects when exposed to high levels of these chemicals. Workers reported headaches, dizziness, and even loss of full body control. There are also possible links to reproductive problems and cancer. All of this has caused maintenance facilities to reconsider their solvent choices, especially with manual cleaning when exposure tends to be higher.
A degreaser is a cleaner designed to remove grease, oils, cutting fluids, corrosion inhibitors, handling soils, finger prints, and other contamination common in assembly, stamping, other types of metal fabrication, refineries, motor repair, airplane hangars, and many other applications. Degreasers go by a number of different names, including precision cleaner, maintenance cleaner, and specific for automotive repair, carb cleaner, brake cleaner. The objective for a degreaser is to remove the offending soil quickly, avoiding as much wiping and scrubbing as possible. Degreasing solvents are commonly packaged as an aerosol for convenience. Aerosols have the added advantage of providing a forceful spray that creates agitation and to penetrate all the crevices of the part.