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TEMPERATURE
:-
The storage temperature should be
lower than + 25° C (70°
F) and preferably lower than + 15°
C (60° F). At temperatures above
+ 25° C, a certain decomposition
process could be accelerated sufficiently
to affect the life expectancy of
the rubber.
Exposure to low temperatures does
not permanently damage the rubber.
However, it should be noted that
rubber stiffens at low temperature.
Care should therefore be taken in
handling cold rubber. After fetching
them from the cold storage, they
should be allowed to resume room
temperature before being put into
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MOISTURE
:-
Moist storage space should be avoided.
Moreover, elastomer seals should
not be stored in areas where condensation
occurs.
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LIGHT
:-
Vulcanised rubber should be protected
from light, particularly from direct
sunlight or strong artificial light
having a high ultraviolet content.
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OXYGEN
& OZONE :-
Whenever possible, vulcanised rubber
items should be protected from circulating
air. Rubber is particularly sensitive
to ozone which hastens ageing of
most grades of synthetic rubber.
O-Rings, Seals etc. should not be
stored in areas where devices that
can generate ozone are installed
such as electric motors or other
equipment which generates sparks
or electrical discharges.
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DEFORMATION
:-
O-Rings, seals, wiper rings, backup
rings etc. should be stored in their
original packages until mounted.
This will avoid size and grade mix-ups
while simultaneously protecting
the rings from external elongation,
compression or other types of deformation.
O-Rings and seals and other types
of rings should not be hung directly
on nails or the like since this
can lead to a permanent change of
shape.
O-Rings and seals are packed and
stored in polyethene bags. These
bags provide certain protection
against the attacks mentioned above.
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