“Our customers want green cleaning
chemicals,” says Mike Sawchuk, vice president and general manager of
Enviro-Solutions, a green chemical manufacturer. “But green is not
enough. They must also perform well and be cost effective. And that has
been a problem with some environmentally preferable floor care
chemicals.”
The problem with creating green floor
care products is that many of the chemicals used in conventional
products, from the powerful ingredients that melt away the old finish to
the finish itself, have been hard to replicate. In one product trial,
custodial workers cleaning New York state government buildings tested 23
environmentally friendly floor care finishes, but found only two that
performed as well as the conventional products they had been using for
years. Similar difficulties were encountered selecting a Green stripper.
However, “green-certified finishes
and strippers do exist, and some are proving to be excellent performers
and cost effective,” said Sawchuck. “Building service contractors (BSCs)
should work with distributors well versed on green cleaning products and
ask for their recommendations. Then [they should] try different brands
to see which work best for them.”
If all else fails, Sawchuk advises
looking for conventional floor care chemicals that have:
• A pH no higher than 11.5;
• Phosphorous concentrations of less
than 0.5 percent;
• A flash point above 150º F;
Flashpoint is the lowest temperature at which a liquid will generate
sufficient vapor to flash (ignite) when exposed to a source of ignition.
• Less than 7 percent volatile
organic compounds;
• No known carcinogens, metals, or
aqueous ammonia.
Green Equipment Selection
According to Mark Cuddy, regional
sales manager with Tornado, a manufacturer of professional cleaning
equipment, a green floor machine does three things: scrubs deeper, uses
less chemical and water, and protects the air. Cuddy suggests that BSCs
use brushes instead of conventional pads when working on uneven or
grouted floors. “The brushes can penetrate better into the grout or
uneven spots, whereas a pad, even a scrubbing pad, simply does not have
the contact pressure for removing deeply entrenched soils,” he says.
“The more effective the brush, the less chemical and water necessary,
making the equipment more environmentally friendly.”
Cuddy says one floorcare system that
tends to use less water and chemical are cylindrical floor machines.
“They use brushes and have greater contact-pressure on floors than do
conventional rotary machines,” he says. “In recent independent tests it
was found that these machines use considerably less chemical and water.
Also, the cylindrical brushes last much longer than conventional pads,
reducing environmental waste.”
Some new floor scrubbers are also
designed to more precisely use chemicals and have an electronic solenoid
to prevent accidental solution flow when the machine is not in use. Both
help save chemical and water and help protect the environment. Finally,
if potentially harmful chemicals or bacteria are on the floor, these may
be released into the air with burnishing, posing a potential health
risk.
To correct this problem, more
burnishers are coming out with deck shrouds to trap contaminants as the
machine is used and high-filtration vacuum systems to capture them.
“Fortunately, some floor care
manufacturers have made significant inroads in protecting the
environment in just the past couple of years,” says Cuddy. “If selecting
a new floor machine today, BSCs should look for one with these green
features.”
Very often, when Green cleaning is
introduced into a facility, there is some resistance from the cleaning
crew. After all, if the old system has worked, why change? “We need to
explain it’s for their health,” says Stephen Ashkin, president of the
Ashkin Group and the Green Cleaning Network. “We now know that using
green equipment and products helps decrease employee complaints of
nausea, headaches, and eye and skin irritations, which reduces
absenteeism and boosts productivity.”
When transferring over to green floor
care chemicals and equipment, along with explaining how to use the new
products and machines, Ashkin advises telling workers why they have been
selected. “Cleaning workers have always been taught that their job,
especially when it comes to floor care, is to make facilities nice and
shiny,” he says. “But with green cleaning in place, they should
understand that there is a bigger picture and that keeping the indoor
environment healthy is actually their primary goal.”
FSM