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JET-HOT Australia
heat management ceramic coatings
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JET-HOT Advantages
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Protection
The chart to the right provides a comparison between
JET-HOT
and alternative
methods for retarding rust. Quoting Car Craft (August 2002): “Anyone who
still runs painted headers is a flake!” The chart shows why. At the same
time, some producers of “high-tech” coatings actually promote 1,000 hour
survival in this salt-spray test as a benefit. In startling contrast,
JET-HOT Sterling™ withstands the same salt attack for over 5,000 hours.
The testers called it quits before Sterling caved in.
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Performance
Because of its low emissivity and insulating effect,
JET-HOT Sterling™ creates
a thermal barrier to protect headers - inside and out - while reducing heat
transfer into the engine compartment. But the good news goes beyond protecting
headers from thermal fatigue. Plugs, wires, fan motors, water pumps and other
heat-sensitive parts get a break, too, in a cooler environment. Plus, power
normally increases and safety for racers improves with lower temperatures.
The graph shown to the right, developed independently by a major US automobile
manufacturer, shows just how effectively JET-HOT Sterling™
beats heat. The
company's engineering team was astounded by temperature reductions exceeding
300°F when JET-HOT Sterling™
was applied to standard exhaust components.
Car Craft also took a cool breath, after measuring temperature reductions
of over 60% on header surfaces following the application of
JET-HOT.
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The test results shown are based on the performance of
JET-HOT Sterling™.
Other JET-HOT® Coatings, formulated for aerospace, marine and higher
temperature applications exceeding 1,300°F, may have different characteristics.
Please check with a Technical Representative for additional information.
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More Power
Horsepower gains depend on many variables, including engine size, type
and setup; cooling system performance; ambient temperatures; and other
factors.
Nevertheless, JET-HOT Sterling™
will normally boost power when applied to
headers for two reasons. First, the coating promotes denser, more potent
fuel/air charges by insulating the engine bay from exhaust heat. At the
same time, it accelerates the pulsed-vacuum effect on “tuned” headers,
resulting in more effective scavenging of cylinders. The increased
velocity of exhaust gases produced by higher exit inertia not only
clears each cylinder more quickly; it also draws in the next fuel/air
charge more efficiently.
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Metal Fatigue
JET-HOT
increases the endurance limit (fatigue strength) of most alloys
subjected to stress loads, such as vibration produced by an engine, after
exposure to high temperatures. In addition, JET-HOT
does not contribute
to hydrogen embrittlement, a condition associated with chrome and other
coatings in which microscopic cracking can lead to premature and sudden
part failure. The comparison to the right represents the average
performance of 403 stainless steel, uncoated and coated with
JET-HOT,
after 10-million stress cycles. The results demonstrate how effectively
JET-HOT
protects substrates from thermal fatigue. |
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