DEFEAT COVID-19 Due to the COVID-19 pandemic, the demand for disinfecting and sanitising is currently at an all-time high. This demand looks certain to increase as schools, businesses and public spaces begin to open, and cleaning standards become stricter.

Consequently, building maintenance staff are desperately looking for ever- faster disinfecting tools. Unfortunately, the current solutions on the market, such as spray bottles, electrostatic sprayers and fogging sprayers don’t always do the trick in the fastest and most efficient way possible.

This has led to maintenance staff inventing their own solutions, using tools designed to spray herbicides, fertilisers and paint. But using improperly designed spraying equipment may lead to the opposite effect of what is intended. Surfaces may not be efficiently disinfected, and the equipment may be unsafe to use with the required virus-killing chemicals.

Graco’s devices to spray disinfectants against SARS-CoV-2

As a specialist in fluid handling solutions, Graco is obligated to deliver safe and effective tools to help frontline workers fight the COVID-19 pandemic. The company has responded quickly to develop a complete equipment line-up that allows maintenance professionals and property owners to safely spray sanitisers, disinfectants and deodorisers faster with consistent coverage.

These devices are compatible with ingredients used in disinfectants to fight SARS-CoV-2, the novel coronavirus that causes the disease COVID-19. They deliver the required atomisation with consistent coverage (without drips and runs) to achieve specified disinfectant surface dwell times required by chemical manufacturers. Specifically selected materials of construction are proven compatible with the harsh chemicals used to fight COVID-19. These are new products with their own branding


and product appearance so as not be confused with Graco paint sprayers.

Why not spray disinfectant with current solutions?

Before looking into the details of Graco’s airless disinfectant sprayers, it’s good to be briefly reminded of why specialised equipment is necessary. Spray bottles and pump sprayers may be inexpensive, simple and popular cleaning solutions but their application is slow and manual, and coverage is inconsistent. As they commonly lead to drips and runs, an additional step is required to wipe areas down.

Electrostatic sprayers are a slight improvement in that they provide better coverage on complex surfaces and speed up the process compared to pump sprayers. However, their small reservoirs require frequent filling and the application process is still relatively slow. They have a

limited ‘wrap’ effectiveness and are expensive for limited production.

Fogging sprayers have the ability to cover open areas quickly and are offered in portable configurations. However, this relies on filling the air inside a room with an unpleasant disinfectant mist. It’s difficult to ensure proper coverage on all surfaces and to meet cleaning dwell times.

What about traditional airless paint sprayers? Firstly, high pressure can over-atomise chemicals, causing harm to the applicator and people nearby, as well as reduce surface contact dwell times and affect the chemical’s performance. Secondly, paint pumps are not built to spray disinfectant chemicals, which require alternative materials of construction for safe and reliable operation. Thirdly, there are quality and safety risks. Chemical incompatibility can attack critical components causing them to weaken and fail.

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