Page 3 - Jabar Catalog Silicone2

Já-Bar Si l icone Corporation • Phone: 973. 786-5000 • Fax: 973. 786-6067 • www.JaBar.com 3
FLAMMABILITY: Certain silicone rubber
products inherently posses a profile of
fire hazard characteristics which make
them useful for applications where good
flame retardation and minimum fire
hazard is desired. For example most
silicone rubber products will pass MIL-
STD-417A horizontal resistance to flame
(test method M). However, to pass the
more stringent vertical flame retardant
specification, flame retardant
ingredients are essential. Silicone rubber
can be compounded and fabricated to
meet many specifications, including:
• UL-94, V-1 or V-0
• UL Code 62
• BMS 159-C
Service
Temperature
Useful Life
(Retention of 50% Elongation)
200°F 10 to 20 years
300°F 5 to 10 years
400°F 2 to 5 years
500°F 3 months to 2 years
500–600°F 1 week to 2 months
600–700°F 6 hours to 1 week
700–800°F 10 minutes to 2 hours.
800–900°F 2 to 10 minutes
FIGURE 16C
TABLE 16B LOW TEMPERATURE FLEXIBILITY is yet
another advantage silicone has over
most organic rubbers. Silicone’s
durometer and modulus show little
change at temperatures as low as -
100°F. Extreme low temperatures
require the addition of PHENYLS, which
exhibit brittle points as low as -150°F,
and remain serviceable at -120 to -
130°F. In Figure 16C, we show a
comparison between commonly used
"low temperature" organic rubbers and
standard (methyl) silicones when
exposed to temperature variations.
Technical Data
COMPRESSION SET and deformation resistance of silicone is superior to that of
organic rubber, as shown in Figure 16D, which depicts the compression set values
over a range of temperatures, when both elastomers are subjected to the same
compressive forces.
FIGURE 16D