Use and Care Manual

SILICONE WATER GUARD - MORE IN EVERY CAN,
#1336 AND #1336L
Silicone Water-Guard #1336L (375gram), More Value in every can
By using CO2 non-flammable gas as a propellant we maximize value for you and minimize carbon in
the atmosphere. This detailed explanation will enable you to make a more informed choice of
products. You will learn that in addition to enjoying superior performance, Water-Guard is also
saving you a lot of money and providing a net environmental benefit.
Most aerosol water repellents include between 1/4 and 1/3 of their “net contents” stated weight in
propane/isobutene, a blend of highly flammable gas refined from petroleum production. The blends
have a flash point of about -100 degrees F. and are similar to the propane for your barbeque. These
blends are 83% Carbon by weight.
An aerosol container that displays a net weight of 300 grams and contains 1/3 of its weight in
flammable gas propellant has 100 grams of this blend. So you only get 200 grams of usable
product. Since the propellant blend is 83% carbon by weight, you have purchased and discharged
into the atmosphere 83 grams of carbon just for the purpose of emptying the can. This is 41.5
grams of carbon to unload each 100 grams of product.
Other marketers do not disclose how much propellant they use, but because it is heavy and cheaper
than the useable product, they have incentive to use more. They want to be sure there is still plenty
of gas left when the product is gone because no one will complain if the can still has pressure when
the product is all gone.
Some of our competitors use only ¼ of the net contents for propellant. In this case a 300 gram can
has 75 grams of flammable gas blend. 75 grams x 83% carbon means that these cans are emptied
by the discharge of 62 grams of carbon. They also give you 25 more grams of usable product. This
is a significant improvement, but still using 27.5 grams of carbon to unload each 100 grams of
product.
Now let’s examine Atsko’s Silicone Water-Guard #1336L. The can is 1.5 inches taller and shows a
net weight of 375 grams. The 375 grams includes 364 grams of usable product, and 11 grams of
propellant. The propellant, CO2, is a non-flammable gas drawn from a waste stream that was
headed for atmospheric discharge. The CO2 is purified for our use but would have gone into the air
anyway so we have simply sequestered it temporarily with no net new carbon production. Our use
of new carbon to empty the entire 300 grams of usable product is zero. That is 0.0 grams of carbon
to unload each 100 grams of product.
As a point of interest, if our CO2 was not a waste product or withdrawn from the air, the calculation
would be as follows. 11 grams of CO2 x 27% carbon by weight is 2.97 grams of carbon to empty 364
grams of usable product. That is only 0.816 grams of carbon to unload 100 grams of product. This is
a 97% reduction of propellant carbon compared to the product with 25% propellant and a 97.3%
reduction of propellant carbon from the product using 1/3 propellant. While not all aerosols can be
emptied with CO2, it certainly should be done whenever possible. You should always choose CO2
propellants when you purchase water repellents.
Safety beyond the reduced flammability of CO2.

Summary of content (5 pages)