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Parker rust-Proof's Torque-Tech™
coating provides repeatble torque values on threaded joints in critical applications.
Reliable thickness · Superior Lubrication · Good corrosion resistance · Grey
color
Developed originally to control crystal morphology on troublesome high-alloy materials,
this coating prevents physical damage caused by friction of mating parts during
installation and can help compensate for lower classes of fit in threaded joints.
Unlike regular zinc phosphates that cause galling during assembly, Torque-Tech™
actually lubricates to promote ease of assembly, requiring less applied force to achieve a
given tension.
In combination with a dry-to-touch oil topcoat, this proprietary coating has demonstrated
>144 hours of neutral salt spray testing per ASTM B117.
Heavy zinc phosphate crystals break off
Conventional light zinc and iron
Torque-Tech™ coatings provide:
easily when handled, leaving exposed
phosphates provide only a thin layer of
EXCELLENT LUBRICITY
bare areas between the crystal roots to
protection and virtually no corrosion
EXCELLENT ADHESION
corrode. The coating has poor adhesion
resistance. Although the bonding
EXCELLENT RUST PROTECTION
and the excess material causes galling.
potential may be good, the coating offers
EXCELLENT REPEATABILITY
poor lubricity.
Torque-Tech™ coatings eliminate
the worst characterisstics of both coatings and provide the besst qualities of both. And
best of all, the Torque-Tech™ coating that you need can be duplicated over and over
with little variation.
And the best part is that it's
repeatable, time after time, day in and day out. Unlike conventional coatings that require
constant adjustments of automatic torquing equipment, what you need next month will be the
same as you used last month. Boring for your engineers, perhaps, but we find it quite
exciting.
 
typical phosphate coating weights
Torque-Tech™ phosphate coating weights
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Protection & Processing
