Tecaform SD

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In recent years, industry has demanded a range of materials that not only possess strength, wear properties, heat and chemical resistance but materials that are less resistant to the build-up of a static charge. Teacform™ SD is a natural coploymer acetal with static dissipative characteristics. Teacform™ SD (Static Dissipative) l contains no carbon fibers or powders and is generally accepted for clean room use. With its surface resistivity of 109 to 1011 ohm/square and its excellent bearing and wear characteristics, TECAFORM™ SD is ideal for moving components which may experience frictional or fluid-flow static charges.

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At a Glance

Generic Name
Polyoxymethylene, Polyacetal

Available In
Sheet, Rod, Tube

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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”	Natural
Rod	3/16″ – 2 3/8″	96”, 120”	Natural
Tube	Call for Sizes	Call for Sizes	Natural

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
Specific Gravity	g/cc	D792	1.33
Water Absorption, 24 hrs	%	D570	0.20

Mechanical Properties	Units	ASTM	Results
Tensile Strength @ yield	psi	D638	6600
Tensile Elongation	%	D638	40-50
Izod Impact (notched)	ft-lbs/in	D256	1.9
Flexural Strength	psi	D790	7000
Flexural Modulus	psi	D790	210000
Compressive Strength	psi	D695
Compressive Modulus	psi	D695
Wear Factor (D)			1.3 x 10^-10
Static Coefficient of Friction			0.11

Thermal Properties	Units	Results
Coeffcient of Linear Thermal Expansion	(x 10^-5 in./in./°F)	5.5
Heat Deflection Temp at 264 psi	°F	230
Melting Temperature	°F	320
Max Operating Temp.	°F
Thermal Conductivity	BTU-in/ft²-hr-°F
Flammability Rating		HB

Electrical Properties	Units	ASTM	Results
Dielectric Strength. 1/8″ th.	V/mil	D1491
Dielectric Constant @1 MHz
Dissipation [email protected] MHz		D150
Volume Resistivity, 50% RH	ohm-cm	D257	10^14

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
Medical equipment
Pump and valve components

Advantages

Permanently anti-static
Superior bearing and wear properties
Low coefficent of friction
Contains no carbon additives
Good impact properties
Unaffected by humidity
Insulates against moderate to high leakage currents
Non-particulating

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Technical Information

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