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Norplex-Micarta RT628H

Being a heat treated version of RT628, RT628H is an improved machining grade meeting NEMA XX for tubes. It has low moisture absorption and good dimensional stability. Typical applications are as a replacement for RT629 where improved machining characteristics are needed. The primary application is in transformers. Certification to IEC standard is pending.

Polymer Name: Phenolic Compound

Physical Form: Tube

Density: 1230.0 - 1230.0 kg/m³

Features: Dimensional Stability, Good Machinability, Heat Treated, Low Moisture Absorption

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Identification & Functionality

Chemical Family
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Features & Benefits

Applications & Uses

Plastics & Elastomers End Uses

Properties

Physical Form
Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity (0.75" ID x 1.00" OD)1.23ASTM D792
Rockwell Hardness (0.75" ID x 1.00" OD)85M ScaleASTM D785
Moisture Absorption (0.75" ID x 1.00" OD, Condition D1-24/23)1.3%ASTM D570
Acetone Extraction (0.75" ID x 1.00" OD, Condition A)max. 1.0%ASTM F2953-12
Compressive Strength (0.75" ID x 1.00" OD, Condition A)19000psiASTM D695
Compressive Modulus (0.75" ID x 1.00" OD, Condition A)360kpsiASTM D695
Thermal Properties
ValueUnitsTest Method / Conditions
Temperature Index (0.75" ID x 1.00" OD, Electrical / Mechanical)130/130°C
Flammability Rating (0.75" ID x 1.00" OD, Condition A)HBClassUL Bulletin 94
Electrical Properties
ValueUnitsTest Method / Conditions
Electric Strength (0.75" ID x 1.00" OD, Condition A)360Volts/milASTM D149
Electric Strength (0.75" ID x 1.00" OD, Condition D-48/50)330Volts/milASTM D149

Regulatory & Compliance