Silicone rubber material for the silicone buttons IOTA7151-40, 50, 60, 70
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Item
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IOTA7151-40
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IOTA7151-50
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IOTA7151-60
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IOTA7151-70
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Product
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Long performance life buttons
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Products feature
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Long performance life, good resilience, high transparency, hit 20 million times tap.
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Special performance
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hit 8million times
rebound loss：8.0%
press set：18.0%
Hysteresis loss：20.0%
（Above is limited to the company key results）
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Appearance
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transparent
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Hardness (HA)
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40
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50
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60
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67
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Density (g/cm³)
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1.10
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1.11
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1.13
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1.15
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Tensile strength (Mpa)
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8.0
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8.5
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9.0
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8.5
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Elongation (%)
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600
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450
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400
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200
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Tear strength (N/mm)
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25.0
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25.0
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25.0
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20.0
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Linear shrinkage (%)
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3.3
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3.3
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3.3
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3.2
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Notes:
- Items containing "*" represent the secondary vulcanization data; Others represent first vulcanization data; “Y” for the liquid glue
- Hardness containing “C” represent ASKER C Others represent Shore A
- Tear mark: A cut mouth with crescent type cutter testing; C - domestic orthogonal cutting test; Not marked for JISK type B
- Vulcanizing agent: 2,5-bis[tert-butylperoxy]-2,5-dimethylhexane; Liquid adhesive curing conditions: 105℃×15min
