Acetal Copolymer

MATERIAL DATA SHEET The information contained herein is typical and intended for REFERENCE USE ONLY. This information should NOT be used as a basis for design, manufacturing or quality assurance purposes. Please contact us for complete, manufacturer-approved material property data sheets. All values below are at 72°F (23°) unless otherwise noted.

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Acetal Copolymer Specifications

Description

Medical grade Acetal Copolymer is made from acetal copolymer resin which allows machined products the ability to retain dimensional integrity, maintain stability in water and most chemicals at elevated temperatures. Acetal Copolymer products are opaque and are available in a wide array of standard colors as well as on a custom basis. Recommended sterilization techniques for Acetal Copolymer include EtO gas and steam autoclaving. Disinfectants and germicides generally have no effect on Acetal Copolymer, however, acidic solutions can degrade the polymer.

Applications

Provisional trials • Instrument handles • Medical device components

Advantages of Acetal Copolymer

Lot controlled and traceable • Resin complies with FDA regulations 21 CFR 177.2470 and 21 CFR 178.3297 for colorants • Resin meets the requirements of USP Class VI specifications • Stress relieved • Laser markable

Manufacturing Capabilities - Standard

Rod: 1” to 4” diameter-colors (1/2” increments) 1” to 4” diameter-black (1/4” increments) • Rod lengths: 1”to 2” diameter - 96” • 21/2” to 4” diameter - 48”

Manufacturing Capabilities - Non-Standard

Rod: 1/2” to 6” diameter • Sheet: .060” to 3/16” thick • Slab: 1/4” to 4” thick • Film: .002” to .029” thick

Color/Grades

Standard: Black, brown, dark blue, dark green, gray, light blue, light green, red, rust and yellow.

Typical Properties of Acetal Copolymer

	Units	ASTM Test	Result
Mechanical Properties
Compressive Strength @ 1% deflection	psi	D695	4,500
Compressive Strength @ 10% deflection	psi	D695	16,000
Fatigue Endurance (limit @107 cycles)	psi	D671	4,000
Flexural Modulus	psi	D790	375,000
Flexural Yield Strength @5% deform.	psi	D790	13,000
Hardness-Rockwell	-	D785	M78
Izod Impact Strength Notched @ 73°F	ft·lbs/in	D256	1.5
Shear Strength	psi	D732	7.7
Tensile Elongation @break	%	D638	75.0
Tensile Impact	ft·lbs/in2	D1822	90
Tensile Modulus	psi	D638	380,000
Tensile Strength @yield	psi	D638	8,800
Thermal Properties
Coefficient of Thermal Expansion	in/in/°F	D696	4.5 TO 6.1 X 10-5
Heat Deflection Temp. @66 psi	°F	D648	316
Heat Deflection Temp. @264 psi	°F	D648	230
Thermal Conductivity	(BTU•in)/(hr•ft2•°F)	C177	1.6
Flammability Rating–UL94 @0.60”	-	-	HB
Other Properties
Specific Gravity	-	D792	1.41
Water Absorption @24 hours	%	D570	0.22