RTP Company RTP 841 Z Acetal (POM) Calcium Carbonate 20%

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RTP Company RTP 841 Z Acetal (POM) Calcium Carbonate 20% - FDA Type (discontinued **)
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Mineral Filled
Material Notes:	Calcium Carbonate 20% - FDA Type Comments: Calcium Carbonate FDA Compliant Unless otherwise specified, all data listed is for natural or black colored materials. Pigments can affect properties. Information provided by RTP Company. Data for this product has not been recently verified, please contact RTP Company for more information before specifying this grade.
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Physical Properties	Original Value	Comments

Specific Gravity	1.55 g/cc	ASTM D792
Filler Content	20 %
Water Absorption	0.20 %	24 hours at 23°C; ASTM D570
Linear Mold Shrinkage	0.015 cm/cm @Thickness 3.17 mm	ASTM D955
	0.025 cm/cm @Thickness 6.35 mm	ASTM D955

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	6800 psi	ASTM D638
Elongation at Break	10 %	ASTM D638
Modulus of Elasticity	500 ksi	ASTM D638
Flexural Yield Strength	11000 psi	ASTM D790
Flexural Modulus	450 ksi	ASTM D790
Izod Impact, Notched	1.00 ft-lb/in @Thickness 3.17 mm	ASTM D256
Izod Impact, Unnotched	15.0 ft-lb/in @Thickness 3.17 mm	ASTM D256

Electrical Properties	Original Value	Comments
Electrical Resistivity	1.00e+14 ohm-cm	ASTM D257

Thermal Properties	Original Value	Comments
Deflection Temperature at 0.46 MPa (66 psi)	320 °F	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	230 °F	ASTM D648
Flammability, UL94	HB @Thickness 1.59 mm	Per testing by RTP Company; ASTM D635

Processing Properties	Original Value	Comments
Processing Temperature	350 - 410 °F
Mold Temperature	175 - 225 °F
Injection Pressure	10000 - 15000 psi

Compliance Properties	Original Value	Comments
FDA	Yes

Descriptive Properties
Color	Natural/Black

**
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PR4411 / 63732

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