Diamond-MT, Inc. 213 Chestnut Street (P): 814-535-3505
Johnstown, Pa 15906 (F): 814-535-2080
www.paryleneconformalcoating.com
Parylene Process Parylene is applied through a deposition
process which allows for precise operator control of thickness. The
process begins with the raw material, dimer. The dimer is reduced
to a gaseous state in the vaporizer chamber. The vapor is then
drawn into the
furnace and heated to very high temperatures to allow for
sublimation and the splitting of the molecule to a monomer. The
result is a parylene coating formed by spontaneous polymerization
at ambient temperature in the deposition chamber. The coating
literally grows one molecule at a time on the substrate surface,
assuring entirely conformal and uniform layers of parylene coating
are
applied. These layers can be applied anywhere from angstroms to
microns in thickness. There is no liquid phase during the parylene
process, so a further curing process is not required in order to
facilitate parylenes optimal properties. Parylene film coatings are
free of fillers, stabilizers, solvents, catalysts, and
plasticizers. Parylene N is a carbon-hydrogen molecule and parylene
C is a carbon hydrogen molecule with a chlorine atom on the benzene
ring. Parylene coatings can be applied to most materials that are
vacuum stable. It has been successfully applied to paper, plastics,
and metals. Parylene provides a moisture and chemical barrier and
is highly resistant to the damaging effects of the body. Parylene
offers dry-film lubricity, with static and coefficients of friction
near those of Teflon. Its most common applications are printed
circuit boards, nitinol, precious metals, needles, and rubber
products.
Main Benefits of Parylene Parylene coatings are completely
conformal, have a
uniform thickness and are pinhole free. As a result, component
configurations with sharp edges, points, flat surfaces, crevices or
exposed internal surfaces are coated uniformly without voids.
Parylene is chemically and biologically inert and stable and
make excellent barrier material.
Parylene has excellent electrical properties: low dielectric
constant and loss with good high-frequency properties; good
dielectric strength; and high bulk and surface resistance.
Diamond-MT, Inc. 213 Chestnut Street (P): 814-535-3505
Johnstown, Pa 15906 (F): 814-535-2080
www.paryleneconformalcoating.com
Parylene is transparent and can be used to coat optical
elements.
Parylene complies with USP Class VI Plastics requirements and
are MIL-I-46058C / IPC-CC-830B listed.
Coatings are truly conformal, of uniform controllable thickness,
and are completely pinhole-free at thicknesses greater than
0.5.
Common Applications of Parylene Printed Circuit boards
Cardiac-Assist Devices
Stents
Catheters
Needles
Magnets
Motors
Mandrels
Elasomesteric Keypads
LED assemblies
Nitinol
About Diamond-MT
Diamond MT was founded in 2001 as a firm specializing in
contract applications of Conformal Coatings for Department of
Defense and Commercial Electronic Systems.
Since our beginning, Diamond MT has established a reputation for
providing the highest quality services in the industry. Our
commitment to quality, integrity and customer satisfaction combined
with an unmatched expertise in applications and processes has
provided every one of our customers with superior results.
Diamond MT operates out of a free standing 12,000 square foot
building in Johnstown, Pennsylvania which is located 60 miles
southeast of Pittsburgh. Diamond MT is located near three major
interstates and is supported by the Cambria County Airport which
serves as a primary freight terminal for south central
Pennsylvania.
