|
• Thermal (ARC) Sprayed Coatings
Praxair/Tafa Arc Spray Cobalt Alloy-106 MXC
®
Made exclusively for arc spraying, Praxair/TAFA 106 MXC is used
to produce a wear resistant coating that resists particle
erosion at temperatures from 1000 - 1550°F (540-840°C), and is
suitable for exhaust valves and seats. Mismachined or worn parts
may be rebuilt with 106 MXC and re-machined using various
grinding techniques. Turbine air seals and turbine vanes coated
with 106 MXC withstand fretting in high temperature
environments. Praxair/Tafa 106 MXC is being evaluated by several
major manufacturers of aircraft engines as a cost-effective
alternative to plasma sprayed material that conforms to PWA
53-16 and PWA 53-18
Praxair/Tafa Arc Spray BondArc ® Wire 75B®
Made exclusively for arc spraying, BondArc 75B wire is a unique
nickel-aluminum alloy for use in arc spray systems under U.S.
Patent No. 4,027,367 and corresponding foreign patents. BondArc
wire is self bonding to a broad range of smooth metal surfaces
including annealed or hardened carbon steels, annealed or
hardened alloy steels, stainless steels, aluminum, nickel, cast
iron, titanium and tantalum. It is not self-bonding to copper
based alloys or tungsten. Mismachined or worn parts may be
rebuilt with BondArc 75B and re-machined with cemented carbide
tool bits or various grinding processes. BondArc 75B meets the
following specifications: PWA-36937 (PWA 271-37 Rev D, PWA
53-37), GE Manual operation number 70-49-38 as an alternate to
70-49-10, Avco M3951B, Rolls Royce OMAT #3/229, SNECMA
DMR33-011, Allied Signal FP5045 and BF Goodrich Service Letter
1623. Coatings to a maximum thickness .250” have been achieved
by continuous spraying. Thus, in some cases, BondArc can be used
as a one-coat system.
Praxair/Tafa Arc Spray Pure Tin Alloy Wire – 02W
Made exclusively for arc spraying, pure tin is a low melt
material with excellent solderability, conductivity and
corrosion resistance. Arc spray tin wire meets Department of
Defense Specification MIL-W-6712C, Table II, Tin. This wire is
commonly used in electrical applications to produce solderable
coatings for electrical connections and as a very effective EMI/RFI
shield. It is also extremely corrosion resistant to a variety of
chemicals and solvents and may be used as a tank liner in some
applications.
Praxair/Tafa Arc Spray Aluminum Wire – 01T
Made exclusively for arc spraying, 01T Aluminum is highly
resistant to atmospheric corrosion. The coating acts as a
galvanic corrosion inhibitor and also forms an oxide film
producing a protective coating, thus, is recommended under a
variety of environmental conditions and is used exclusively on
submerged water applications. For long-term anti-corrosive
applications, aluminum should be covered with a protective 5-8
mil layer of a suitable sealer, in all but mild rural
applications. Aluminum 01T is used by Matrix Coatings for all
MIL-STD-2138A (SH), Metal Sprayed Coatings for Corrosion
Protection Aboard Naval Ships arc spray program requirements.
Arc spray Aluminum 01T wire meets the following specifications:
Department of Defense MIL-W-6712C Table II, Aluminum, PWA 1320F
and SNECMA DMR33-012, Garrett FP5045, and GE CF6 Overhaul Manual
operation number 70-49-40 as a substitute for 70-49-01.
Praxair/Tafa Arc Spray Zinc – 02Z
Made exclusively for arc spraying, zinc 02Z is primarily
designed for use as an EMI/RFI shield, capacitor end spraying
and protective anti-corrosion coating for general oxidation
resistance. Arc spray 02Z is 99.99% pure, and is not
contaminated in the arc spray process. Zinc 02Z wire meets the
Department of Defense Specification MIL-W-6712C, Table II, Zinc.
Traditional applications of zinc have been primarily for
corrosion protection, both in the atmosphere and in the marine
environment. For long-term anti-corrosive
•
CORROSION RESISTANT COATINGS
Dykor®
This is a specialty line of Whitford dispersion coatings
containing (PVDF). Because Dykor is unaffected by most chemicals
and solvents, it is typically used to protect metals from harsh
environments. This system is comprised of a primer, midcoat and
topcoat and is used to line chemical process and storage
vessels. Dykor has been the engineering polymer of choice for
severe chemical applications for nearly three decades. Dykor
forms a tough, abrasion resistant barrier, which if employed as
recommended, will protect equipment for many years.
Halar®
Manufactured from ECTFE, is a melt processable flouropolymer.
Because of its chemical structure, a 1:1 alternating copolymer
of ethylene and chlorotriflouroethylene, Halar offers a unique
combination of properties especially as a coating and a liner.
Halar flouropolymer coatings provide outstanding chemical
resistance, good electrical properties, a broad-use temperature
range from cryogenic to 300 ° F (150 ° C), and meet the
requirements of UL-94 V-O vertical flame test in thicknesses as
low as .007 (7mils). Halar is resistant to strong mineral and
oxidizing acids, alkalies, metal etchants, liquid oxygen, and
essentially all organic solvents except hot amines.
Ryton™
The Chemical name for this material is Polyphenylene Sulfide.
This material is practically unaffected by many organic
chemicals, even under conditions that will dissolve or destroy
other plastics. There is no organic solvent known that will
dissolve PPS at temperatures below 392 ° F (200 ° C), but some
classes of organic chemicals have shown a tendency to permeate
the PPS polymer matrix (especially at elevated temperatures)
causing some plasticizing, swelling and a weakening of the
plastic compound. These chemicals include amines (organic
compounds containing unoxidized nitrogen), aromatic hydrocarbons
and halogenated organic compounds. This material is unaffected
by most water-based solutions of acids, bases or neutral salts.
The primary exceptions are strong oxidizing acids, such as
nitric acid, hydrochloric acid or peroxy acids. Relatively
non-oxidizing acids, such as sulfuric acid and phosphoric acid
have little effect on PPS except under extreme conditions, such
as high temperature and high concentrations. For additional
information regarding the effects of Strong Acids, Strong Bases,
Organic Chemicals or any other compatibility issues please visit
the Ryton compatibility chart @:
http://WWW.aboutchevronphillipschemicalcompany.com/rytonpps.
Matrix Coatings, Inc. can specify and apply the correct coating
to solve the most severe corrosion problems.
•
ZINC-RICH COATINGS
Zinc-Rich coatings are known for outstanding corrosion
resistance. Superior physical properties ensure coating
integrity. Zinc-Rich coatings are specially formulated epoxy,
designed for corrosion protection and good edge
coverage/encapsulation. Final color is dependent on topcoat
specifications.
Salt
Spray Resistance (ASTM B 117) = 4000+ hours
Humidity Resistance (ASTM D 2247) = 5800+ hours
Pencil Hardness (ASTM D 3363) = 4H - 5H
|