Norplex-Micarta RTB320H

Identification & Functionality

Chemical Family

Phenols & Phenolics

Fillers Included

Cotton,

Natural Fiber

Polymer Name

Phenolic Compound

Reinforcement Material

Cotton

Technologies

Composite Materials,

Plastics

Product Families

Composite Materials — Parts & Shapes

Plastics — Parts, Shapes & Films

Features & Benefits

Materials Features

Bearing Grade,

Dimensional Stability,

Good Machinability,

Heat Treated,

Low Moisture Absorption

Applications & Uses

Markets

Automotive & Transportation,

Industrial

Applications

Automotive & Transportation — Automotive

Chassis & Brake

Industrial — Chemical & Industrial Manufacturing

Equipment & Parts

Composites End Use

Gaskets,

Wheels

Plastics & Elastomers End Uses

Bearings,

O Rings,

Thrust Washer

Properties

Physical Form

Tube

Physical Properties

	Value	Units	Test Method / Conditions
Specific Gravity (0.75" ID x 1.00" OD)	1.31	—	ASTM D792
Rockwell Hardness (0.75" ID x 1.00" OD)	105	M Scale	ASTM D785
Moisture Absorption (0.75" ID x 1.00" OD, Condition D1-24/23)	1.1	%	ASTM D570
Acetone Extraction (0.75" ID x 1.00" OD, Condition A)	max. 1.0	%	ASTM F2953-12
Tensile Strength (0.75" ID x 1.00" OD, Condition A)	9800	psi	ASTM D638
Compressive Strength (0.75" ID x 1.00" OD, Condition A)	31000	psi	ASTM D695
Compressive Modulus (0.75" ID x 1.00" OD, Condition A)	400	kpsi	ASTM D695

Thermal Properties

	Value	Units	Test Method / Conditions
Temperature Index (0.75" ID x 1.00" OD, Electrical / Mechanical)	135/135	°C	—
Flammability Rating (0.75" ID x 1.00" OD, Condition A)	HB	Class	UL Bulletin 94

Electrical Properties

	Value	Units	Test Method / Conditions
Electric Strength (0.75" ID x 1.00" OD, Condition A)	275	Volts/mil	ASTM D149

Regulatory & Compliance

Quality Standards

ASTM F2953-12,

IEC PF CC 21,

MIL-I-24768/13 Type FBE,

NEMA LE