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Friction Material: TF4242

Technical Data

TF4242 is a soft-flexible friction material provides a high friction coefficient. Its flexibility allows it to work silently while producing minimum wear on working surfaces. TF4242 can be bonded & riveted, and is available in all popular thicknesses and in sheet sizes of 30”x 30”,  25”x 25” and 20”x 20.”

Material Description

Type: 
Flexible molded friction
Availability: 
Sheets
Availability: 
Finished parts
Applications: 
Calipers for industrial applications
Applications: 
Static brakes
Applications: 
Heavy loaded Winches and Cranes
Friction Properties (F.A.S.T test)

Dynamic Friction Coefficient (@79N, 7m/s): 
0.50
Wear Rate (@79N, 7m/s): 
45± 10 mm3/Kwh
Tº Fading (@100N, 11.5m/s): 
590ºF
Physical Properties

Hardness (DIN53505): 
55±5 Shore-D
Specific Gravity (ASTM D792-91) : 
1.6± 0.05 gr/cm3
Ignition Loss (ASTM D-2524): 
45 ± 2 %
Acetone Extraction ISO2859-1: 
2 ± 0.2 %
Thermal Conductivity (ASTM E1952-01): 
At 212ºF0.33 W/mºK
Mechanical Properties
Tensile Strength (ASTM D638-10): 
3N/mm2
Compressive Strength (UNE 53205): 
190 N/mm2
Poisson Coefficient: 
0.34
Young Modulus (ASTMD638-10) : 
504N/mm2
Others
Recommended Mating Surface: 
Perlitic cast iron, hardness HB150-200
Recommended Adhesives: 
Thermosetting adhesive.
Oil Resistant: 
Yes
Document: 
090