Tarnoform® 300 HI4

Identification & Functionality

Polymer Name

Polyacetal Copolymer (POM)

Plastics & Elastomers Functions

Resin

Technologies

Plastics

Product Families

Plastics — Engineering & Specialty Polymers

Polyacetals

Features & Benefits

Materials Features

Impact Resistance

Applications & Uses

Markets

Automotive & Transportation,

Consumer Goods,

Electrical & Electronics

Applications

Consumer Goods — Appliances & Electronics

Automotive & Transportation — Automotive

Exterior & Body,

Interior,

Powertrain & UTH,

Seating

Automotive & Transportation — Bonding & Assembly

Other Bonding & Assembly Applications

Electrical & Electronics — Devices & Assemblies

Consumer Electronics

Plastics & Elastomers End Uses

Fasteners

Plastics & Elastomers Processing Methods

Injection Molding

Properties

Flame Rating

IEC 60695-11-10 HB

Physical Form

Granules,

Solid

Flame Rating

IEC 60695-11-10 HB

Physical Properties

	Value	Units	Test Method / Conditions
Melt Flow Index - MFI (190°C/2.16 kg)	8	g/10 min	ISO 1133
Melt Mass Flow Rate - MFR (190°C/2.16 kg)	8	g/10 min	ASTM D1238
Melt Volume Flow Rate - MVR (190°C/2.16 kg)	6	cm3/10 min	ISO 1133
Molding Shrinkage - Paralell (60×60×2 mm)	1	%	ISO 294-4
Molding Shrinkage - Paralell (60×60×2 mm)	8/-	%	ISO 294-4
Molding shrinkage - parallel	1.8	%	ISO 294-4, 2577
Moisture Absorption (23°C/50% RH)	0.3	%	ISO 62
Density	1360	kg/m3	ISO 1183

Mechanical Properties

	Value	Units	Test Method / Conditions
Tensile Modulus	1600	MPa	ISO 527
Strain at Break	min. 50	%	ISO 527
Yield stress	40	MPa	ISO 527
Yield strain	15	%	ISO 527
Flexural modulus, 23°	1400	MPa	ISO 178
Charpy impact strength (+23°)	N	kJ/m2	ISO 179/1eU
Charpy notched impact strength (+23°)	15	kJ/m2	ISO 179/1eA
Izod notched impact strength, +23°	14	kJ/m2	ISO 180/1A
Ball indentation hardness	80	MPa	ISO 2039-1

Thermal Properties

	Value	Units	Test Method / Conditions
Coefficient of Linear Thermal Expansion (parallel)	130	E-6/K	ISO 11359-1/-2
Coefficient of Linear Thermal Expansion (normal)	130	E-6/K	ISO 11359-1/-2
Delfection Temperature Under Load (1.8 MPa)	75	°C	ISO 75-1,-2
Temperature of deflection under load (1.80 Mpa)	75	°C	ISO 75-1/-2
Melting Point (DSC)	167	°C	ISO 11357-1-3
Vicat Softening Temperature (50 N)	120	°C	ISO 306
Melting temperature (10°C/min)	167	°C	ISO 11357-1/-3
Thickness tested	3.2	mm	—
Vicat softening temperature	120	°C	ISO 306
Burning Behavior at thickness	HB	class	IEC 60695-11-10

Electrical Properties

	Value	Units	Test Method / Conditions
Comparative Tracking Index - CTI	600	V	UL 746
Surface Resistivity	1.00E+13	ohm	IEC 60093
Volume Resistivity	10000000000000.0	ohm.m	IEC 60093

Other Properties

	Value	Units	Test Method / Conditions
Humidity absorption	0.3	%	Sim. to ISO 62

Packaging & Availability

Country Availability

Brazil,

Canada,

China (Mainland),

Mexico,

USA

Regional Availability

• Asia Pacific
• Europe
• Latin America
• North America