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1.Line up

  Unit BF-150 BF-300 BF-400 BF-500 BF-700 Test Codition
Density kg/m3 150 300 400 500 700 JIS K6400
Permissible contact pressure N/cm2 3.5 10 20 35 75 -
Static spring constant N/mm 65 150 500 860 2000 JIS K6385
Dynamic spring constant N/mm 250 650 800 1786 3800 JIS K6385
Rubber hardness Hs - 5 15 30 40 60 JIS K6253
Compression set % 3.0 3.0 3.0 3.0 3.0 JIS K6262
Tensile strength kPa 900 1200 1600 1900 2900 JIS K6251
Elongation % 190 230 190 190 180 JIS K6251
Tear strength N/cm 40 60 80 110 180 JIS K6252
Flame-retardant FMVSS NO.302 -
  UL94 HBF equivalent equivalent equivalent equivalent -
  ASTM E662 equivalent equivalent equivalent -
BSS 7239 equivalent equivalent equivalent -

2.Vibration characteristic

使用面積と共用荷重(静的)

固有振動数と厚みの関係

Calculation formula of compression ratio and natural frequency

Please enter a weight and a bearing area.

Item Unit Calculated value
Weight Kg
Bearing area cm2
Contact pressure Kg/cm2 0.397
Contact pressure N/cm2 3.89

Compressibility and natural frequency at 25mm thickness will be estimated.

  Contact pressure(N/cm2) Compression set(%) Natural frequency(Hz)
BF-150 17 10.4
BF-300 5 17.4
BF-400 5 17.4
BF-500 1 29.8
BF-700 1 26.8

Natural frequency can be confirmed by entering different thickness.

  Thickness(mm) Natural frequency(Hz)
BF-150 15.6
BF-300 27.6
BF-400 27.6
BF-500 47.2
BF-700 42.4

3.Creep and Strain characteristic

Creep

Test condition : 25℃, 15%compression

クリープ・歪特性


Repeat compression set

Test Codition : 5Hz, 15% compression, 10 thousand times

  Unit BF-150 BF-300 BF-400 BF-500 BF-700
Repeat compression set % 2.0 2.0 2.0 2.5 2.5

4.Clean Performance

  Unit Limited Detect BF-150 Test Codition
Sulfur ppm 10 N.D. US EPA 8270D:2007
Dimethyl Siloxane (D3-D12) ppm 0.1 N.D. BS EN 14582:2007
Halogen (F, Cl, Br, I) ppm 50 N.D. BS EN 14582:2007

5.Product size

  Unit BF-150 BF-300 BF-400 BF-500 BF-700
Size mm  500 x 1000
Thickness mm 0.5 - 50 1.5 - 50 3.0 - 50 3.0 - 50 3.0 - 40