Silicone Rubber (Food Grade) is a high-purity, non-toxic elastomer specifically formulated for applications requiring direct contact with food and potable water. It exhibits excellent thermal stability, flexibility and resistance to ageing, while remaining odorless, tasteless and physiologically inert.
The material complies with FDA 21 CFR 177.2600 and applicable food-contact regulations, making it suitable for hygienic and sanitary environments. It maintains elasticity over a wide temperature range and offers good to ozone, UV radiation and weathering.
Silicone rubber gaskets and seals are particularly suitable for applications involving extreme temperatures, low pressure and static sealing where long service life and material stability are required.
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Technical Specifications
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SR.NO.
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PROPERTIES
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Test Method
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Value FPS Units
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Test Method Reference
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Values Metric Units
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1.
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SPECIFIC GRAVITY
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DIN 53508
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1.17 ± 0.05
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ASTM D297
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1.17 ± 0.05
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2.
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HARDNESS
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DIN 53505
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60 ± 5 Sh A
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ASTM D2240
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60 ± 5 Sh A
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3.
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TENSILE STRENGTH (min)
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DIN 53504
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1136 PSI
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ASTM D412
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80 kg/cm2
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4.
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ELONGATION AT BREAK (min)
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DIN 53504
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300%
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ASTM D412
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300%
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5.
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COMPRESSION SET(70ºC/24 hrs/25% compression) (max)
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DIN 53517
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40%
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ASTM D395 METHOD B
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40%
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6.
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TEAR RESISTANCE (Angular) min
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DIN 53515
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112 Lbs/Inch
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ASTM D624
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20 Kg/cm
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7.
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CHANGE IN PROPERTIES AFTER
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8.
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HEAT AGEING FOR (72 hrs. AT 70 ºC)
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ASTM D 573
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9.
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— HARDNESS (Pts)
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+ 3 (Max)
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+ 3 (Max)
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10.
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— TENSILE STRENGTH (%)
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+ 5 / – 5
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+ 5 / – 5
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11.
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— ELONGATION AT BREAK (%)
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+ 5 / – 5
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+ 5 / – 5
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12.
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VOLUME SWELL: AT 70ºC FOR 72 HRS
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ASTM D 471
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13.
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IN IRM OIL NO.901
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NOT RECOMMENDED
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NOT RECOMMENDED
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14.
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IN IRM OIL NO.902
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NOT RECOMMENDED
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NOT RECOMMENDED
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15.
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IN IRM OIL NO.903
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NOT RECOMMENDED
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NOT RECOMMENDED
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16.
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CHEMICAL RESISTANCE
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17.
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— OZONE
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EXCELLENT
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ASTM D 1149
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EXCELLENT
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18.
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— DILUTE ACIDS AND BASES
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EXCELLENT
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EXCELLENT
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19.
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— CONCENTRATED ACIDS AND BASES
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EXCELLENT
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EXCELLENT
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20.
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— OILS
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FAIR
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FAIR
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21.
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— SOLVENTS
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FAIR
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FAIR
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22.
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TEMPERATURE RANGE
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-60º to + 220º C
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-60º to + 220º C
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23.
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COLOR
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Translucent / Red
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Translucent / Red
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