Q: How important is water
A: It is very important. The hardness
of the water has a direct affect
on the performance of your water
soluble coolant. It is very important
to control the hardness of your
water. Remember, in most cases
90 to 95% of your water soluble
coolant is water. That is why
the quality of your water is very
Q: Is a proportioner
A: Although it is not necessary,
it does help tremendously in controlling
your concentration. In turn, this
will give you a better idea on
your coolant usage and also help
monitor tool life.
Q: Can I just add water
or just add coolant concentrate?
A: Yes, you can. However, it is
recommended that you add both
water and coolant concentrate
together to keep better control
of the concentration.
Q: How important is the
control of pH in my coolant?
A: This is very important. Most
cutting fluids are designed to
run at 9 to 9.5 on the pH scale.
Some run lower, but it is a good
idea to keep strict controls to
keep your pH levels within this
Q: Why is that important?
A: If your pH drops below an 8.8
and stays there, you have a greater
chance for bacterial growth. On
the other side of the scale, if
your pH goes too high, you increase
the chances for dermatitis.
Q: How can we prevent
A: You can prevent dermatitis
by using common sense and taking
a few precautionary steps. Barrier
creams, gloves, long sleeve shirts
and frequent hand washing go a
long way in the prevention of
dermatitis. In addition, control
over your pH to keep it within
range is very important. All these
steps taken together will help
to eliminate the possibility of
Q: How can we prevent
hydraulic or way oil from reaching
our cutting fluid?
A: In most cases, it is impossible;
it is a “nature of the beast”.
However, a variety of oil skimmers
are available to help remove the
contaminating oil in your sumps.
Q: Is the refractometer
giving us an accurate reading
on the concentration of our coolant?
A: Theoretically no. However,
it is the best “field”
test to measure your coolant’s
Q: How can we increase
the tank life of our coolant?
A: You can increase the life by
taking control over your sumps.
Daily checks of concentration,
pH, water hardness and add amounts
of water and concentrate all contribute
to keeping your tanks within a
certain range to maintain peek
performance of your coolant. It
is also important to eliminate
or maintain a small amount of
foreign oil as to not to contaminate
Q: How do we know what
type of coolant to use in certain
A: Your Yuma representative can
help you answer these questions. We have
products designed for certain
applications and some that can
be used “across the board”
for product consolidation at your