303

303 PROTECTANT

303 Protectant beautifies better and lasts longer. But for manufacturers, 303 is much more than than just
"the best". Most vinyl "protectants" contain silicone oils, petroleum distillates or other agents which damage
vinyl and which vinyl manufacturers recommend AGAINST! To reduce their warranty costs, vinyl manufacturers recommend 303 to their customers. 303 Protectant is the World's Best for vinyl.

303 For Rubber

From aircraft pressurization door seals to the inflatable boats at Disney World's Typhoon Lagoon or for the
rubber hoses, seals, and tires on your vehicle, manufacturers' test show only 303 protects against rubber's
worst enemies, UV light and ozone. 303 Protectant is the World's Best for rubber.

303 For Fiberglass

Never buff and wax again! Dozens of companies claim their wax is the best for fiberglass. But The World's
Best product for fiberglass isn't a wax at all. It's 303, with technology and quality years ahead of everything
else. That's why North America's largest RV and truck cap manufacturers, van converters, and boat builders
use and recommend 303. 303 Protectant is The World's Best for fiberglass.

For cars, trucks, motorcycles, boats, RV's, and airplanes. No other product beautifies as intensely, protects
as powerfully, or lasts as long. You can pay more and you can pay less, but you can't buy a better product than 303.

For rubber, vinyl, fiberglass, plastic, finished leather, dacron and monofilm sails.

Ultraviolet Radiation

Only a small portion of solar radiation consists of invisible ultraviolet (UV) light. But the light in this
spectral range is responsible for photo degradation. Photo degradation results in discoloration, fading,
embrittlement, cracking, chalking and/or loss of mechanical properties. Chalking gelcoat fiberglass,
yellowing plastics, fading and weakening fabrics and sunburned skin are all familiar problems caused
by UV light. Before UV light can cause harm, it must first be absorbed. If it is not turned into heat or
transferred to a nearby stabilizer molecule called a quencher, it breaks weak chemical bonds. This
is the beginning of UV damage.

Some materials absorb UV light more readily than other materials. Materials that readily absorb UV
light are quickly damaged...rubber, vinyls, gelcoat fiberglass, and many other plastics. Acrylic is slow
to absorb UV light and accordingly very resistant to photo degradation.

UV stabilizers are a group of chemical agents with the ability to counteract or neutralize the harmful effects
of UV light. Competitive absorbers provide protection by converting UV light to heat so it can dissipate
harmlessly (See Vol. I). Other UV stabilizers work differently. ALL UV stabilizers are consumed as they
do their job. In a way, they serve as sacrificial molecules, taking the abuse from UV light instead of the
material they are protecting.

This brief overview greatly simplifies this very complex subject. Discoloring due to absorbers that have
absorbility into the visible light range is a problem. And there are many others.

Two important points: UV stabilizers have to be periodically renewed or replenished if continuing UV
protection is to be achieved. Second, there is no such thing as a permanent UV stabilizer, a matter of
physics, not chemistry. A Few More Facts

When UV light is absorbed, it starts to break (cleave) weak chemical bonds which leads to bleaching
(fading), discoloration, chalking, brittleness and cracking - all indications of UV deterioration.

The bond cleavages resulting from UV absorption cause the formation of "radicals." Each free radical can
trigger a chain of reactions (in the presence of air), leading to more bond cleavages and destruction.
These oxidating chain reactions require no further UV exposure, just the presence of air.

Thus, it is important to provide UV protection with agents that use competitive absorption to convert the
light wave energy into harmless heat (like carbon black does in tires-refer to Vol. I). It is equally important
to protect with quenching agents that have radical scavenging ability.

Summary

No matter what it's called - UV protection, UV screening, sunblock - to provide true UV protection in a
maintenance product form, it is necessary to utilize effective, active chemical agents called UV stabilizers.

Untreated rubber, vinyl, and other plastics readily absorb and are degraded by UV light. 303 is the best
UV protection money can buy. 303 restores, beautifies, and lasts longer than anything else. Guaranteed!