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EPDM
Bonded Sealing Washer Installation Guide:
(courtesy Aztec washer)
MASTER SEAL® WASHERS ARE MORE THAN
JUST WASHERS
Because of a unique bonding process, which bonds a strong backing
material to a resilient facing material, MASTER SEAL® will perform a
function that neither material could perform alone.
Where
sealing properties are required, the conical design directs the flow
of the elastomeric portion toward the problem areas. Where cushioning
or vibration presents a problem, our full-face elastomeric material
affords 100% protection.
Features Include:
Quality elastomeric compounding to meet specifications for elasticity,
memory, temperature extremes, chemical, ozone, and
sunlight-resistance.
Conical design directs flow of facing materials to form a seal
conforming to both fastener and sealing surface.
Full-face design cushions fragile surfaces and minimizes vibration.
Inside diameter sizes for #4 diameter screw to 1-1/2” diameter bolts
and corresponding metric range.
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EPDM Sealing Washers:
Available Standard Sizes of EPDM Washers:
All items are packaged 1000 per poly bag.
(call for pricing).
Sealing Washer Materials:
EPDM
(Ethylene Propylene Diene Terpolymer) is an excellent, low-cost ozone and
weather resistant elastomer which possesses superior aging characteristics. It
is also extremely effective when application requirements dictate heat
resistance up to 350º F. Use of EPDM in direct contact with petrochemicals is
not recommended. For construction applications where the primary hazards are
ozone ultraviolet radiation and temperature extremes, EPDM is the consistent
elastomer of choice.
NEOPRENE®
(Polychloroprene), one of the earliest and perhaps best known, of the
man-made elastomers is still one of the most versatile facing material for
sealing and cushioning washers. When properly formulated it is highly
resistant to sunlight ozone weathering and aging while enjoying good memory
and elasticity. Although its particular strength lies in its resistance to
petrochemicals and certain other chemical families Neoprene is a generalist -
performing well in a myriad of applications. When direct contact with
petrochemicals is of greater concern than direct U.V., Neoprene will do the
job.
Substrate Backing Materials:
GALVANIZED
STEEL provides excellent strength characteristics and possesses greater
corrosion resistance than a common commercial zinc-plated bolt or screw at the
lowest possible cost.
ALUMINUM Aztec special alloys provide similar longevity and protection
when low-stress or desired deflection requirements exist. For higher stress
applications both strength and corrosion resistance may be attained by
selection of specific alloys such as 5052-H38. Use of an aluminum Master Seal®
also minimizes concerns of galvanic corrosion in certain applications.
STAINLESS STEEL (Austenitic 300 Series or 18-8/A2) combines the optimum
corrosion resistance and lowest cost available in a premium material. Its use
is indicated wherever stainless fasteners are required or when a corrosive
environment would compromise lesser metals.
316 STAINLESS STEEL (Austenitic 300 Series with Molybdenum/A4) provides
the highest corrosion resistance available in standard production materials.
due to its higher cost it is specified only in the highest corrosion marine or
industrial environments.
Similar terms: sealing washer, sealing washers, epdm sealing washer, bonded sealing washer, epdm bonded sealing washer, self
sealing washer, pressure sealing washers, master seal, aztec master seal,
aztec master seal washer
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