BR70 Phenolic Composite Sheet – High Strength, Low Moisture, Red

BR70 is a red colored composite made from a 24 oz/sq. yd canvas which is passed through the treater twice to insure impregnation of the fibers and to obtain the resin content desired for optimal performance. The resin system is a phenolic with good impregnation qualities and cured hardness.

Properties

General

Property	Value	Testing Standard	Comment
Bonding strength	952.5 Kg	ASTM D229	Condition D-48/50
	1043.3 Kg	ASTM D229	Condition A
Density	1.42 g/cm³	ASTM D792
Moisture absorption	0.06 %	ASTM D570	Condition A

Mechanical

Property	Value	Testing Standard	Comment
Compressive strength	251.7 MPa	ASTM D695	Condition A
Flexural modulus	7.1 GPa	ASTM D790	Condition A, Transverse
	9.4 GPa	ASTM D790	Condition A
Flexural strength	93.8 MPa	ASTM D790	Condition A, Transverse
	139.3 MPa	ASTM D790	Condition A
Hardness, Rockwell M	95 [-]	ASTM D785
Impact strength, Izod unnotched, ASTM	151 J/m	ASTM D256	Condition E-48/50, Transverse
	339 J/m	ASTM D256	Condition E-48/50
Shear strength	95.8 MPa		Transverse
Tensile strength	78.6 MPa	ASTM D638	Condition A

Thermal

Property	Value	Testing Standard	Comment
Coefficient of thermal expansion	1.95e-05 1/K	IPC-TM 650-2.4.24
	2.76e-05 1/K	IPC-TM 650-2.4.24	Transverse
Relative temperature index, mechanical strength	125 °C		UL Bulletin 746b¹
Flammability	UL Bulletin 94, Class HB, Condition A

Technological properties

Property
Application areas	BR70 is designed for highly loaded bearing applications, where the lubrication is provided by oil, water or a mixture.
Fillers	Cotton Fabric
Other	1.This temperature is a recommendation only, and based upon experience in various applications. The maximum operating temperature is dependent upon the application and should be investigated prior to use.
Supplier Disclaimer	This data, while believed to be accurate and based on reliable analytical methods, is for informational purposes only. The terms and conditions of the agreement under which it is sold will govern any sales of this product. Data supplied above are "typical values"; not to be considered "specification values". To assure the material's performance is adequate for a specific application; customers should verify, independent of Norplex-Micarta, performance characteristics of interest. It is the responsibility of the users of this information to make sure that they have the latest version of this TDB, and are urged to check with Customer Service or, preferably our web site, www.norplex-micarta.com, to determine if the information is the most current available.

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Composite material