Solid dry film coatings are a
permanent lubricant designed to reduce friction, heat and wear
on internal combustion engines. Unlike most polymer coatings,
solid dry film will not break down from corrosive fuels, oils
and their by-products. Click here to see pictures.
Pistons - The most common causes of wear on the piston
skirts are cold starts, hot restarts and oil breakdown. These
conditions allow the piston skirt to contact the cylinder bore,
resulting in scuffing and higher temperatures. Coated pistons
eliminate this problem by preventing contact of the piston skirt
and bore. In addition to this, dry film has a very low
coefficient of friction, requiring less energy to reciprocate
the rotating assembly. With higher rpm this effect becomes even
Connecting Rods and Crankshafts - Dry film is oleophobic
(sheds oil), it prevents oil from clinging to these parts as
they rotate, keeping them in balance and helping oil return to
the sump faster.
Bearings - Prasitic drag caused from oil trying to cling
to both the crank and the bearings is greatly reduced when using
coated bearing shells. Again, this is due to the oleophobic
properties of the dry film coatings. Bearing failure due to high
crank loads and oil shear are also greatly decreased.
Valve Springs - Springs tend to have a lot of friction
between each other, as well as the head and the seat causing
failure; by dry film coating, the springs friction is nearly
eliminated and heat is reduced, resulting in greatly extending
Block Valley and Oil Returns - The main function in
coating these areas is to allow the oil to return to the sump
All solid dry film coatings reduce friction, which in turn
increases the performance like of the components it has been
applied to. For more information on applications that most
beneficial to your specific needs, please contact our Technical
Department. Click here to see pictures.