Kolon KOCETAL® GB705 Glass Bead Reinforced Acetal Resin

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Kolon KOCETAL® GB705 Glass Bead Reinforced Acetal Resin (discontinued **)
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM)
Material Notes:	Glass bead added, improved dimensional stability. Applications: Products for high stiffness, dimensional precision. Information provided by API-Kolon.
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Physical Properties	Original Value	Comments

Specific Gravity	1.59 g/cc	ASTM D792
Moisture Absorption at Equilibrium	0.20 %	60% RH; ASTM D570
Linear Mold Shrinkage	0.017 cm/cm	ASTM D955
Melt Flow	23 g/10 min	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	82	ASTM D785
Tensile Strength	43.0 MPa	ASTM D638
Elongation at Break	25 %	ASTM D638
Flexural Strength	85.0 MPa	ASTM D790
Flexural Modulus	3500 MPa	ASTM D790
Izod Impact, Notched	30.0 J/m	ASTM D256

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+14 ohm-cm	ASTM D257
Surface Resistance	1.00e+16 ohm	ASTM D257
Dielectric Constant	3.7	ASTM D150
Dielectric Strength	19.0 kV/mm	ASTM D149
Dissipation Factor	0.0060 @Frequency 1e+6 Hz	ASTM D150

Thermal Properties	Original Value	Comments
CTE, linear	80.0 µm/m-°C	ASTM D696
Melting Point	166 °C	ASTM D1525
Deflection Temperature at 0.46 MPa (66 psi)	163 °C	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	120 °C	ASTM D648
Flammability, UL94	HB

**
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PKOKZ914 / 122616

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