CoatingsPro Magazine Supplements

Equipment 2018

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COATINGSPRO EQUIPMENT 2018 17 17 BWAY Corp., a North American manufacturer of rigid metal, plastic, and hybrid containers, recently introduced a new 5-gallon (18.9 L) plastic pail with built-in handles, known as the Handle-It Pail. According to the company, the indus- try standard for pails has long been a wire or plastic handle only. However, integrated handles create a package with significant safety and convenience benefits for users. Benefits include superior ergonomics, easier content distribution, reduced injury risks, and lower freight and handling costs since the pail 's unique design results in 10 percent more pails per truckload. e rugged pail is versatile enough to handle products ranging from chemicals to paints and coatings. Tool tethering is another consideration at heights to ensure that tools do not slip away. e Gear Keeper brand of Hammerhead Industries has a full line of customizable tethering options, including wrist lanyards and several personal, anchored, and retractable tethers. Different models are available to account for varying tool weights. Ergodyne is another company that offers solutions in this area. Powering Power Tools Once the jobsite has been safely accessed, one of the next steps is determining whether the site has an existing power source for the equipment. If it does not, or if the power requirements are greater than what can be supplied through the grid, mobile generators may be brought in. Makinex is one company offering a complete genera- tor range to provide power for equipment and tools, floor grinding, welders and brick saws, air compressors, and more. Available in 6-, 10-, and 16-kW models, the range includes what the company says is the most compact generator on the market, at just 20.3 inches (51.6 cm). e alternators provide 11 percent more power from the same engine, which allows for a cleaner sign wave with 92 percent efficiency. e compact and lightweight nature of the generators simpli- fies the process of moving them around on jobsites, as well as taking them on and off vehicles. With a trolley frame and push-along handles, the generators can be easily maneuvered around smaller jobsites. Many pneumatic tools may require air compressors to help power them throughout the project. Doosan is among several industry companies offering a full line of air compres- sors with a wide range of pressures, ranging from 185 cfm to 1,600 cfm (5.2 to 45.3 m 3 /min.). If any of these compressors should fail, MES Rentals is among industry providers offer- ing potential solutions. Within the past year, the company began selling its MES Air Dryer, which helps remove moisture coming from the air compressor to blast hoses for surface preparation. With pressures from 400 cfm to 4,800 cfm (11.3 to 135.9 m 3 /min.), MES says the dryers ensure that flash rust does not ruin a job. MES also offers rental options for dust collectors, vacuums, blast pots, steel grit, recyclers, and more. Environmental Considerations Contractors may need to develop a plan early in the process to ensure the jobsite's climate and moisture levels are in compli- ance with the coating manufacturer's requirements. High relative humidity (RH) at a jobsite can lead to increased corrosion rates, flash rusting, and condensation, all of which increase the possibility of unsatisfactory surface finishes. However, it is possible to lower the dew point or air temperature via desiccant dehumidification or refrig- eration-type dehumidification. Aggreko is one provider offering a variety of dehumidification equipment. "No equip- ment solution is right for every application," said Tom Hill, Aggreko's temperature control product manager. "One of the common mistakes we see on jobsites is the misapplication of equipment, which can cost money, affect the schedule, and lead to poor results." As a result, selecting the correct equipment for each appli- cation is essential. In selecting dehumidification equipment, customers should be aware of coating requirements for the product being used, available utilities, and the ambient condi- tions during the application process. For example, selecting a refrigerant-based dehumidifier during cold winter months would not provide proper conditions for the coating application, as the coating would likely fail because it could not cure properly. "e right dehumidification equipment for the job depends on factors like ambient air temperature, how long the project will take, whether the surface is contained or insulated to the weather, and what energy sources are available," Hill said. A desiccant dehumidifier, such as Aggreko's DH-5000, is effective at any temperature, although less so in higher tempera- tures, according to the company. An important thing to remember is that a desiccant unit will typically add 30 °F (16.7 °C) to the process air. It is possible to blend desiccants and refrig- erants to reach desired conditions. "W hile desiccant dehumidification technology requires significant power, it provides great moisture removal and good drying in most environments," Hill said. Aggreko also offers standard DX style air condition- ers and industrial units. e difference is that the DX units provide about 400 cfm/ton (11.3 m³/min. per ton), while industrial units are 165 cfm/ton (4.7 m³/min. per ton). An Accessing the jobsite, identifying a power source, and controlling the environment are three of the first tasks that a coatings contractor must complete. A dehumidifier, such as Aggreko's DH-5000, may help with curing conditions. Proper Tools

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