BP21NPM Phenolic Resin Sheet – Superior Lubricity & Machining Performance

BP21NPM is composed of a linen substrate combined with a phenolic resin system which contains molybdenum disulfide for reduced wear and increased lubrication. Provides the same lubricity as BP13NPM, but has better machining qualities. The mechanical strength is similar to, but slightly less than BP21NPN.

Properties

General

Property	Value	Testing Standard	Comment
Bonding strength	861.8 Kg	ASTM D229	Condition A
Density	1.39 g/cm³	ASTM D792
Moisture absorption	2.4 %	ASTM D570	Condition D₁-24/23

Mechanical

Property	Value	Testing Standard	Comment
Compressive strength	268.9 MPa	ASTM D695	Condition A \| Flatwise
Flexural modulus	7.6 GPa	ASTM D790	Condition A, Transverse
	10.3 GPa	ASTM D790	Condition A
Flexural strength	124.1 MPa	ASTM D790	Condition A, Transverse
	164.1 MPa	ASTM D790	Condition A
Hardness, Rockwell M	103 [-]	ASTM D785
Impact strength, Izod unnotched, ASTM	69 J/m	ASTM D256	Condition E-48/50, Transverse
	85 J/m	ASTM D256	Condition E-48/50
Shear strength	100 MPa	ASTM D732	Condition A, Transverse
Tensile strength	96.5 MPa	ASTM D638	Condition A

Thermal

Property	Value	Testing Standard	Comment
Coefficient of thermal expansion	1e-05 1/K	IPC-TM 650-2.4.24
	1.2e-05 1/K	IPC-TM 650-2.4.24	Transverse
Relative temperature index, electrical	130 °C		UL Bulletin 746b¹
Relative temperature index, mechanical strength	130 °C		UL Bulletin 746b¹
Flammability	UL Bulletin 94, Class HB, Condition A

Electrical

Property	Value	Testing Standard	Comment
Breakdown voltage	5 kV	ASTM D149	Condition D48/50
	30 kV	ASTM D149	Condition A

Technological properties

Property
Application areas	BP21NPM is used in applications where reduced wear is needed in non-conductive applications.
Fillers	Cotton Fabric and MoS2
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