Synthetic rubber

IIR Sheet (Isobutene-isoprene rubber : Butyl rubber)

【 Features 】

・Excels in chemical resistance.
・Excels in gas permeability resistance.
・Excels in heat aging resistance.

【 Applications 】

・Packing material for air (gas) duct.
・Acid resistant packing material.

*Hardness measurement is revised to “After 3 seconds” according to JIS K 6253 (2006). However, generally, the conventional "measurement within 1 second" is to be the mainstream for nominal hardness, so this result is measured value and the measurement result after 3 seconds is shown in ().

【 Properties: Black Rubber Sheet 】

Item Name Properties
General Properties Heat-Resistant Aging
100°C×72h
Oil Resistance
70°C×72h
Comp-
ression
Set
100°C
×
24h
%
Elastic
Modulus
in
Static
Shear
JIS K
6380
Corres-
ponding
No.
Item
Number
Hardness
Type
A
Tensile
Strength
at
Break
MPa
{kgf/cm2}
Elongation
at
Break
%
Hardness
Change
Type
A
Change
Rate
of
Tensile
Strength
%
Change
Rate
of
Elongation
at
Break
%
Volume
Change
Rate
%
ASTM
#1
IRM
903
Butyl Sheet <50> 50(48) 7.1{72} 600 +17 +9 -35 67   AAH
50261
TIKM
5005
  <65> 67(65) 6.7{68} 450 +12 +15 -49 +64 +153 54 0.8 BAH
65252
TIKM
6505
  • JIS K 6250

【 Properties: Colored Rubber Sheet 】

Item Name Properties
General Properties ItemNumber
Hardness Type A Tensile Strength at Break MPa{kgf/cm2} Elongation at Break(%)
White Butyl Sheet <65> 64(63) 9.0 {92} 600 TIWL6505
  • JIS K 6250
  • ●These items highlighted in this color     are our standard products.
  • •These products should not be incinerated wherever possible because harmful gas to humans might be generated if they are immoderately burned.
    •The user is requested to confirm degree of discoloration and contamination by using sample in the case of use contacting with the other items.
    •The life of these products at actual use are greatly affected by condition of the use. The user is requested to confirm it by using sample in the case of use under severe condition.

    ●These descriptions can be altered for a reason of improvement without any notification.
    ●These descriptions shall be as of November 1, 2021.

    function
    • ・Ozone Resistance
    • ・Acid Resistance
    • ・Alkali Resistance
    • ・Anti-Permeability to gas

    Inquiry for Details of Our Products

    Product specifications, size and design are subject to change without notice for improvement.

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