We usually list the total number of Teflon™
coating properties at eight. The Dry Lubrication property also goes by
“Lubricity” and “Low Coefficient of Friction.” To the layman, this Teflon™
property might sound a lot like “non-stick,” but there is a significant
functional difference.
Non-stick means that almost no solid substance will adhere to the
surface. Dry Lubrication, on the other hand, refers to how easily a coated
surface will slide over another surface. The most common Teflon™ coatings used
for high lubricity in industrial applications are PTFE
one-coats in the 958G line (-303, -313, -404, and -414).
Friction is the force created when two objects rub together and
motion is hindered. With a Teflon™ industrial coating, the “coefficient
of friction” is generally lowered to a range of 0.05 to 0.20, depending on
the load, sliding speed, and type of coating used. Dry Lubrication is very
important in any application that has moving parts touching each other
frequently or with significant force.
Teflon™ PTFE one-coats are superior dry film lubricants with
smooth and slick finishes fusing to substrates with strong adhesion to provide
great durability. These industrial coatings are excellent for minimizing
friction and galling, as well as preventing seizing, especially where
re-lubrication with fluid is not possible or there is exposure to dirt or dust.
PTFE one-coats are often used in the automotive, aerospace, and oil & gas industries
because of the ideal combination of Teflon™ properties available under different
grades of durability and thickness.
The popular 958G PTFE
line provides high heat resistance to operating temperatures of
up to 500 degrees F. These solvent-based coatings are also easy to apply for a
number of reasons. They apply in one coat, cure schedules can be flexible, they
have superior adhesion, and cleanup is painless.
The thin-film 958G-303 version is an industry standard and has
been used for dry lubrication for many years. The 958G-313 version, introduced
in 2016, is also a good option because it is more durable than -303. For
thicker film applications (up to 4 mils DFT) with high lubricity, we recommend
using 958G-406 (black) or -414 (dark green).
