Washing
your car? Don't forget the windows....
by David
W. Bynon Copyright (c), 2000, Autopia
Car Care -- All Rights Reserved
Have you
ever noticed how much better your car looks when the windows are
perfectly clean? Yet, many of us ignore the windows when we wash
because it adds a few precious minutes. Forget the time involved
in keeping your glass clean for a moment, have you ever thought
about how hazy, dirty windows can be a safety hazard? Driving your
car with dirty, hazy windows on a rainy night or in heavy traffic,
straining to see, is a driving impairment. You should consider this
a true danger. In addition to being a hazard, the effects of dirty
glass can quickly ruin the appearance of your perfectly polished
and waxed automobile. Cleaning
your windows is one of the most tedious tasks you will face. After
you have completed all other detailing tasks, put the perfect touch
on your car by detailing you car’s glass.
Glass
Cleaners
Just as
in selecting car shampoo and wax, no two car enthusiasts can agree
on the ultimate glass cleaner. Some people like ammonia cleaners,
others swear by TSP, while the purists will use nothing but clear
water.
Whatever
you use, the principles are the same: clean, dry and polish. I highly
discourage the use of ammonia-based glass cleaners on your car.
While ammonia is a great glass cleaner for the home, ammonia is
harmful to many car surfaces including vinyl, rubber, and leather.
More importantly, the use of ammonia inside your car is harmful
to your health. As a substitute to ammonia, I prefer citric acid,
alcohol, or mechanical cleaners.
Glass cleaners
in a spray bottle work fine. The only problem is over spray on the
dash and upholstery. As it is difficult to direct the spray of glass
cleaners, you will have the best luck spraying one side of a clean
towel, wiping the glass, and they drying with the other side of
the towel. Many professional detailers use plain water for wiping
and cleaning the windows and dry the glass with newspaper. Unlike
paper towels and most cotton towels, newspaper does not leave behind
lint and the ink acts as a glass polish. The only draw back to this
method is the newsprint ink on your hands when you’re done. Be sure
to wash your hands before touching your upholstery.
Steps
For Cleaning Windows
Start your
window cleaning with the driver’s door and front passenger door.
If your door has a window frame, lower the window approximately
one inch to allow access to the top part of the glass. This part
should be cleaned and dried first. Spray with glass cleaner and
buff dry. Now roll the window back up and clean the remainder of
the window. Pay attention to the corner of the windows, as this
is where you will get most smears and streaks. Don’t forget your
driver’s side and passenger side mirrors.
While you’re
sitting down in the passenger’s seat, clean the inside of the windshield.
The inside of the windshield is easier to clean from the passenger’s
side as your access is not obstructed by the steering wheel. Take
your time around the rearview mirror as it is only glued to your
windshield. If you bump into the rearview mirror hard enough or
at the right angle, you can break it loose from the glass.
The inside
of the rear window is the most difficult to reach and should be
done last. The best technique for cleaning your rear window is to
use the backside of your hand to guide your towel down into the
corners. Trying to use the palm of your hand will force you to be
a contortionist and draw strange looks from your neighbors.
Cleaning
Spotted Glass
Some parts
of the country are burdened with extremely hard water. Hard water
is water that contains excessive trace elements including calcium,
iron, lime, and other minerals found in streams and rivers. These
trace elements remain on your glass when water from sprinklers or
washing air dries. These hard water spots attach themselves to glass
like white on rice. If left on your glass for very long, hard water
spots will not wash off with shampooing or regular glass cleaners.
In my experience, there are only two ways to remove hard water spots.
The first is to use distilled white vinegar. If your water spots
are mild, you can dilute the vinegar 2:1 with water. Heavy spots
may require pure vinegar. Either way, the vinegar will not harm
you or your car. Vinegar is a very mild acid, which dissolves the
alkaline-based mineral water deposits with ease. If hard water spots
are allowed to remain for more than a week or two, they may etch
the glass. So, even though you have removed the minerals causing
the water spots, the spots remain as damage to your glass. In these
cases, it is necessary to polish the glass. Until recently, there
were a number of glass polishes on the market. The two best products
were Eagle One Glass Polish & RainX Glass Polish. However, both
of these products have been discontinued due to little demand. In
my experience, any light (low abrasive) car polish that does not
contain paint feeding oils will work as a good glass polish. Eagle
One Scratch Remover is a good example of a polish that does not
contain oils and works well on glass, as does P21S Multi-Surface
Finish Restorer. There are two ways to use these polishes. The most
gentle is to use an old t-shirt to polish the spotted area and buff
to full luster. The second is to use the polish with #00 or finer
synthetic steel wool to remove the spots then buff with an old t-shirt.
If your glass is heavily pitted, or mildly scratched, you can also
use polish to restore the finish. In this case, it may be necessary
to use a buffer in order to achieve the desired results. In some
cases, the glass may be so deeply pitted, etched, or scratched that
the inevitable must occur, you must replace the glass.
Cleaning
Window Tint Film
Window
tint film is often applied to the inside windows to shade passengers
or provide privacy. Window tint film is a thin sheet of Mylar plastic.
Mylar easily scratches and will be destroyed by ammonia. To clean
tinted windows, use mild cleaners and water only. Tint film that
has been scratched can be polished with cleaners designed for the
vinyl windows often found on convertible tops. The product I recommend
for polishing and regular maintenance of window tint film is Plexus.
Plexus comes in spray and is safe for use on plastic, plexiglass,
and window tint film. In addition to polishing your window tint
film, Plexus works great on your tail light and headlight covers.
Windshield
Wipers
Windshield
wipers are necessary to clean your windshield and rear window when
it rains, snows, becomes bug ridden, or dirty from long road trips.
Wipers perform best when the rubber is in good shape and the glass
is fairly clean. You should make it a habit to clean your front
and rear wiper blades at the same time you clean your glass. After
cleaning your glass, use a damp cloth to wipe the rubber blades,
removing bug residue, wax, and other dirt build-up. Although rubber
dressing helps preserve, protect, and beautify the rubber and vinyl
parts on your car, you should not use dressings on your wiper blades.
Rubber dressing on your blades will cause streaking and smearing,
impairing your vision. The best overall maintenance of your blades
is keeping them clean. No amount of cleaning will keep your blades
in perfect condition. Wiper blades wear with each use. Most wiper
blades will last about one year. When your blades become worn, dried,
or faulty replace them with a new set. Most manufacturers recommend
replacing wiper blades at the beginning of fall.
Final
Touches
If your
car is a year or more old, a close inspection may reveal dirt build-up
in the corners of your windshield and rear window around the trim.
To remove this caked on gunk, use an old toothbrush or detailing
brush with your spray cleaner. Before cleaning, lay a towel at the
base of the window to catch drips. Spray your brush with window
cleaner and shake off the excess cleaner. Use your brush to scrub
along the trim, breaking loose the dirt. Use the tip of a cotton
swab to reach underneath trim and remove trapped dirt. If your brush
won’t remove the build-up of dirt use a sharp single edged razor
blade to gently remove the dirt from your glass. Take care not to
push your razor blade too far under rubber seals as this may cause
leaks. Stay clear of defroster strips on rear windows that are not
embedded in the glass. Cutting the defroster strips will render
them useless. Follow up after the razor blade with your brush and
glass cleaner.
Microfiber
Cloth
Recently,
the car detailing industry was introduced to a new cleaning cloth
originally designed to clean semi-conductor manufacturing plants
(often called “clean rooms”). The revolutionary new cloth is a polyester/polymide
woven fabric that is non-abrasive and hypoallergenic. Soft like
silk, yet tough as a bulldog, the cloth attracts dust, grime, oily
films and salt residues just like a magnet. The cloth's patented
surface structure contains 90,000 micro fibers per square inch.
These "micro-hooks" grab, lift, and hold dust and grime without
the need for cleaning solutions. When used damp on glass, the cleaning
cloth, which we call the Miracle Towel, cleans windows by pulling
dirt and oils into the cloth. The ultra fine structure of the Miracle
Towel leaves exceptionally small water beads, which dry without
spotting. For perfect glass, follow the damp Miracle Towel with
a dry Miracle Towel. Your Miracle Towel can be used damp or dry.
When used dry, it works like a chamois. The super absorbent weave
holds up to seven times its weight in water. To date, I have not
found a cleaning product that can match the ease of use or result
of the Miracle Towel. If you regularly maintain your windows, the
Miracle Towel is the best overall substitution to chemicals and
terry cloth drying towels. Unlike terry cloth or other cotton towels,
the Miracle Towel will not leave lint or cause streaking. The Miracle
Towel will not, however, remove sap, tar or hard water spots from
your windows. These problems will still require the use of chemicals.
Other
Tips & Hints
For long
road trips and unexpected problems, keep a cleaning cloth in your
glovebox. I have found the simplest solution to window cleaning
away from home, comes from P21S. P21S makes a product called Windshield
Wipes, which are a sealed pouch containing a cleaning cloth and
a drying cloth. The cleaning cloth has a strong cleaning solution
that cuts through most glass problems. Also, from P21S, I have found
that P21S Windshield Wash Booster improves my wiper’s ability to
clean my windshield without streaking. The power of P21S Booster
easily cuts through bugs and road grime.
Product
Recommendations The glass products I recommend include: 1. Miracle
Towel 2. Eimann Fabrik Clear Vision 3. Porsche Glass Cleaner 4.
Stoner Invisible Glass 5. Plexus (window tint film) 6. P21S Windshild
Wipes 7. P21S Windshield Wash Booster
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