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Acetal Copolymer

Compliance Info

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General Info

ACETAL COPOLYMER (unfilled) grade offers excellent performance at a slightly lower cost than Delrin ® homopolymer. Some acetal copolymer may exhibit center line porosity, but porosity-free material is available. Certain grades are FDA, USDA, NSF, Canada AG and 3-A Dairy compliant. Low stress levels and high strength assure flatness and dimensional stability up to a maximum continuous service temperature of 180°F (80°C). Acetal copolymers are available in a wide variety of colors.

Learn more about Acetron, Delrin & Tecaform Acetal Grades.

Key Properties

High Strength and Stiffness
Wear Resistance in Wet Environments
Low H2O Absorption
Excellent Machinability
Higher Chemical and Hot Water Resistance than Homopolymer Acetal
Less Centerline Porosity than Homopolymer Acetal
Lower Outgassing than Homopolymer Acetal

Limitations

Wear Resistance in Dry Environments
Lower Temperature Stability (to 180 F)
Poor Resistance to Strong Acids and Alkalies
Formaldehyde Outgassing
Lower Stiffness than Homopolymer Acetal

Applications

Bushings & Bearings
Gears & Sprockets
Manifolds
Pump & Valve Components
Rollers
Wear Strips

Resin Trade Names

Celcon® POM Acetal

Manufacturer Trade Names

Acetron® Acetal Grades
Delrin® Acetal Grades
GEHR Acetal Grades
Pomalux® Acetal Grades
Semitron® ESd 225 Static Dissipative Acetal
Sustarin® C Acetal Grades
TECAFORM® Acetal Grades
Turcite ® Acetal Grades
Unital® Acetal Grades
ZL® Acetal Grades

Boedeker Plastics, Inc. stocks & supplies plastic sheet, rod, tube, film and custom profiles and machine parts from these shapes that are produced from plastic resin. In many cases the manufacturer of the shape has their own product trade name. If your specification calls for a specific resin grade or manufacturer trade name, we can supply a shape made from that resin to meet your specification or suggest an equal. If you require a specific resin or brand it must be specified at the time of order.

Available Sizes

Available Colors

Black
Blue
Brown
Gray
Green
Orange
Red
Rust
White
Yellow

Safety Data Sheet

Download Safety Data Sheet

Typical Properties of Acetal Copolymer

DETAIL
Description			Value
Material Type			Semi-Crystalline Thermoplastic
Chemical Name			POM Polyoxymethylene Acetal Copolymer
Additives			Unfilled
Color			White
PHYSICAL
Property	Test	Unit of Measure	Value
Density	ASTM D792	g/cm³	1.41
	ASTM D792	lb/in³	0.051
Water Absorption, 24 hrs, Immersion	ASTM D570	% by wt.	0.2
MECHANICAL
Property	Test	Unit of Measure	Value
Tensile Strength	ASTM D638	psi	9,500
Tensile Modulus	ASTM D638	psi	400,000
Tensile Elongation at Break	ASTM D638	%	30
Flexural Strength	ASTM D790	psi	12,000
Flexural Modulus	ASTM D790	psi	400,000
Compressive Strength	ASTM D695	psi	15,000
Compressive Modulus	ASTM D695	psi	400,000
Hardness	ASTM D785	NA	Rockwell M88 / R120
IZOD Impact-Notched	ASTM D256	ft-lb/in	1
THERMAL
Property	Test	Unit of Measure	Value
Coefficient of Linear Thermal Expansion	ASTM D696	x 10-5 in./in./°F	5.4
Heat Deflection Temp	ASTM D648	°C at 264 psi	104
	ASTM D648	°F at 264 psi	220
Melting Point Temp	ASTM D3418	°C	168
	ASTM D3418	°F	335
Max Continuous Operating Temp		°C	82
		°F	180
Minimum Operating Temp		°C	-50
		°F	-58
Thermal Conductivity	ASTM C117	BTU-in/ft²-hr-°F	1.6
	ASTM C117	x 10^4 cal/cm-sec-°C	5.5
Flammability Rating	UL94	NA	HB
ELECTRICAL
Property	Test	Unit of Measure	Value
Dielectric Strength	ASTM D149	V/mil	420
Dielectric Constant at 1 MHz	ASTM D150	NA	3.8
Dissipation Factor at 1 MHz	ASTM D150	NA	0.005
Surface Resistivity	ASTM D257	ohm/square	> 10^13
COMPLIANCE
Description			Value
FDA			Yes
USDA			Yes
NSF			Yes
3-A Dairy			Yes
Canadian Food Inspection Agency			Yes
USP Class VI			No
OTHER
Description			Value
UV Resistant			No
Relative Cost			$$$
Machinability			1

Relative cost based on a scale of one dollar sign ($) as the lowest to ten dollar signs ($$$$$$$$$$) as the highest. Machinability based on a scale of 1 to 10, with 1 being the easiest and 10 being the most difficult to machine. NOTE: All information contained on www.boedeker.com, downloadable documents and printed literature is intended for technical reference only and considered to be accurate for reference purposes only. Boedeker Plastics, Inc. makes no guarantee and offers no warranty for fitness in use and strongly recommends the user validate any plastic, machined part, or product in a specific application for fitness in use.

DELRIN is a registered trademark of DuPont.