Unital LF13

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Unital® Acetal (polyoxy-methylene) offers design engineers a superior blend of strength, stiffness, lubricity, and dimensional stability. These properties, along with inherent machining ease, have made Unital® one of the most widely used engineering grade thermoplastics. Unital® LF-13 utilizes a powdered PTFE at a 13% loading and is compliant with both FDA and USDA regulations at a cost that is up to 33% less than other filled acetal products, making it the workhorse of the enhanced wear acetal product family.

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At a Glance

Generic Name
Polyoxymethylene, Polyacetal

Available In
Sheet, Rod

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Gallery

Technical Information

Stock Products Properties Applications Advantages

Stock Products

Type	Size	Length	Color
Sheet	.250 – 3”	24” x 48’, 12” x 48”, 48” x 96”	Brown
rod	.250 – 6″	96”, 120”	Brown

Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.

Properties

Physical Properties	Units	ASTM	Results
Density	lb/in³	D792	1.48
Water Absorption, 24 hrs	%	D570	0.23

Mechanical Properties	Units	ASTM	Results
Tensile Strength @ yield	psi	D638	8000
Tensile Modulus	psi	D638	600000
Tensile Elongation @Break	%	%	15
Flexural Strength	psi	D790	13500
Flexural Modulus	psi	D790	410000
Compressive Strength	psi	D695	15500
Compressive Modulus	psi	D695
Hardness, Rockwell R		D785	89
IZOD Impact Strength Notched	ft-lb/in	D256	0.8

Thermal Properties	Units	Results
Coeffcient of Linear Thermal Expansion	(x 10^-5 in./in./°F)	5.2
Heat Deflection Temp at 264 psi	°F	235
Melting Temperature	°F	347
Max Operating Temp.	°F	185
Thermal Conductivity	BTU-in/ft²-hr-°F	n/a
Flammability Rating		HB

Electrical Properties	Units	ASTM	Results
Dielectric Strength. 1/8″ th.	V/mil	D149
Dielectric Constant @1 MHz
Dissipation Factor@1 MHz		D150
Volume Resistivity, 50% RH	ohm-cm	D257	10^15

NOTE: The property values presented above are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.

Applications

Bushings
Bearings
Seals
Gaskets
Valve seats
Gears

Advantages

FDA Compliant
USDA Compliant
3-A Dairy Compliant
13% Powder Filled
Superior Wear Resistance
Easily Machined and Fabricated

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