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FIBERLAST® – Omni-directional Random Oriented Fiber (ROF) Pads

FIBERLAST® - Omni-Directional Random Oriented Fiber (ROF) Pads

FIBERLAST® is an advanced random oriented fiber (ROF) bearing pad material that is widely used in the industrial/commercial cast-in-place concrete and precast concrete construction industry. With a uniform compressive stress capacity of 2,000 psi, FIBERLAST® offers higher loading limits than traditional ROF materials (σ average = 1,500 psi) and AASHTO grade neoprene (σ average = 800 psi). FIBERLAST® is typically used in single element bearing pad applications with modest longitudinal movement requirements. The document titled ” FIBERLAST® Plain Pad Catalog” contains a complete description of the evaluation and test program that was conducted to determine the product application recommendations. Occasionally, FIBERLAST® is used as the elastomeric component in an expansion bearing assembly. This type of application is generally driven by a large rotation requirement. The document titled ” FIBERLAST® Expansion Bearing Pad Catalog” provides further details for use in expansion bearing applications.

Physical Properties

Hardness ASTM D 2240 (Shore A)80 ± 5
Tensile strength ASTM D 4121000 ± 100 psi
Min. Ultimate Elongation ASTM D 41240%

Heat Resistance

Specified Temperature of the Test ASTM D 573100 ºC 212 ºF
Aging Time ASTM D 57370 hours
Max. Change in Durometer Hardness ASTM D 573 (Shore A)10
Max. Change in Tensile Strength ASTM D 573-25%
Max. Change in Ultimate Elongation ASTM D 573-25%

Ozone Resistance

Specified Temperature of the Test ASTM D 114937.8 ºC 100 ºF
Aging Time ASTM D 114970 hours
Concentration ASTM D 1149100 pphm
Min. Tensile strength ASTM D 1149725 psi
Elongation ASTM D 114940%

Oil Immersion

Specified Temperature of the Test ASTM D 4711100 ºC 212 ºF
Aging Time ASTM D 471170 hours
Oil Solution ASTM D 4711#3
Volume Change ASTM D 4711125%


Shear Modulus ASTM D 4014-87 View283 psi
Apparent Shear Modulus View230 ± 30 psi
Compressive Strength View8000 psi
Thickness Gauge Tolerance View± 0.063 or 15%