Customer Value Proposition:
Parker Chomerics urethane filled expanded aluminum gaskets
provide a soft, electrically conductive fluid and pressure sealing
solution for a variety of flange to flange assemblies. Developed
to minimize galvanic corrosion of interfacing surfaces that
require electrical bonding, these fully-cured gaskets are an
effective solution in applications requiring lightning strike
grounding or EMI shielding. With numerous performance
improvements when compared to traditional gasketing
alternatives, customers can expect a 30% lower total cost of
ownership from various contributing factors including the
avoidance of assembly rework and material replacement.
With successful adoption across numerous military and
commercial applications, common usages include:
• Exterior mounted device bases
(antennas, radars, lighting, etc.)
• Access panel assemblies
(electronics bays and hatches)
• Connector / waveguide assemblies
Contact Information:
Parker Hannifin Corporation
Chomerics Division
77 Dragon Court
Woburn, MA 01801
phone 781 935 4850
fax 781 933 4318
chomailbox@parker.com
www.parker.com/chomerics
Features and Benefits:
Conformable, high surface affinity urethane
provides superior fluid sealing
Superior fluid sealing results in corrosion reductions up to 300% when compared to traditional sealing
alternatives, resulting in rework cost reductions of up to 50%.
Soft urethane requires low deflective forces
Low deflective forces allow for increased design freedom for the interfacing assembly, resulting in
cost optimization through reductions in fastener quantities, flange thickness, assembly tolerances and
weight.
Wave-formed aluminum provides electrical
continuity at gasket deflection as low as 15%
Electrical continuity at gasket deflection as low as 15% promotes full surface electrical contact
between gasketing and mating surfaces in highly variable applications where deflection is commonly
localized around fasteners. This promotes optimized electrical performance and minimized system
failures and associated rework costs.
Expanded aluminum promotes uniform distribution
of fastener loads
Uniform distribution of fastener loads eliminates harmful pitting and scoring commonly found with
woven-wire based gasketing solutions due to point-stress created by wire overlap locations. Lower
stress concentrations reduce the associated rework costs of flange cracking due to stress fatigue.
Expanded aluminum promotes optimized electrical
performance
Optimized electrical performance is gained through the elimination of point-to-point contact
resistance associated with woven wire gasketing technologies. Improved electrical efficiency promotes
minimized system failures and resulting rework costs.
Urethane Filled Expanded Aluminum
Gasketing
METALASTIC
TM
EXP-URE
