Radici Compounds AC90 Radici USA Acetal (POM) Copolymer

Product Description

AC90 is an acetal copolymer with a viscosity suitable for general purpose injection molding applications; it is internally lubricated for ease of mold release.

Acetal copolymer is a highly crystalline engineering thermoplastic based on trioxane, polymerized with a comonomer to provide exceptional thermal stability both in processing and for molded parts which may be exposed to high temperature environments.

AC90 exhibits the characteristics of a true engineering material; predictability of performance in a wide range of environments and for long periods of time. Performance characteristics combine excellent strength, rigidity and toughness, a unique resilience, outstanding static and dynamic fatigue resistance, natural lubricity and resistance to a very wide range of solvents, oils, greases and chemicals, including strong alkalis. Extremely low moisture absorption results in excellent dimensional stability, and therefore an ability to hold precision tolerances in parts exposed to a wide range of humidity.

General

Material Status

Commercial: Active

Availability

North America

Additive

Lubricant

Features

Alkali Resistant

Copolymer

Fatigue Resistant

Good Chemical Resistance

Good Dimensional Stability

Good Mold Release

Good Thermal Stability

Good Toughness

Grease Resistant

High Rigidity

High Strength

Low Moisture Absorption

Lubricated

Oil Resistant

Resilient

Solvent Resistant

Uses

General Purpose

Automotive Specifications

Appearance

Colors Available

Natural Color

Forms

Pellets

Processing Method

Injection Molding

Physical	Nominal Value	Unit	Test Method
Specific Gravity			ASTM D792
Molding Shrinkage			ASTM D955
Flow: 0.125 in		in/in
Across Flow: 0.125 in		in/in
Water Absorption (24 hr)		%	ASTM D570
Mechanical	Nominal Value	Unit	Test Method
Tensile Strength² (Yield, 73°F, 0.125 in)		psi	ASTM D638
Tensile Elongation (Break, 73°F, 0.125 in)		%	ASTM D638
Flexural Modulus (73°F)		psi	ASTM D790
Flexural Strength (73°F)		psi	ASTM D790
Impact	Nominal Value	Unit	Test Method
Notched Izod Impact (73°F, 0.125 in)		ft·lb/in	ASTM D256
Tensile Impact Strength³ (73°F)		ft·lb/in²	ASTM D1822
Hardness	Nominal Value	Unit	Test Method
Rockwell Hardness (M-Scale)			ASTM D785
Thermal	Nominal Value	Unit	Test Method
Deflection Temperature Under Load (264 psi, Unannealed)		°F	ASTM D648
Melting Temperature		°F	ASTM D789
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Radici Compounds AC90, Radici Compounds , RadiciCompoundsAC90, RadiciCompounds, CompoundsAC 90, CompoundsAC90, Compounds, AC 90, AC90, Acetal Copolymer, Acetal Copolymer, Acetal (POM) Copolymer, Acetal POM Copolymer, Acetal, pom, Radici USA, AcetalPOMCopolymer, 90AC, 90CompoundsAC
Features
Features may also be described by the following terms: Good Thermal Stability, High Strength, High Rigidity, Good Toughness, Tough, Good Mold Release, Easy Release, Good Demolding, Good Chemical Resistance, Chemical Resistant, Good Dimensional Stability, Dimensionally Stable, Low Moisture Absorption, Low Water Absorption, Water Resistant, Moisture Resistant.
Automotive Specifications
This plastic material has approval for 2 automotive specifications from the following agencies (the number in parentheses shows the number of specifications for that agency): DELPHI (2).

Injection	Nominal Value	Unit
Drying Temperature		°F
Drying Time		hr
Rear Temperature		°F
Middle Temperature		°F
Front Temperature		°F
Processing (Melt) Temp		°F
Mold Temperature		°F
Back Pressure		psi
Screw Speed		rpm
Cushion		in

Notes

¹Typical properties: these are not to be construed as specifications.

²Type I

³Type S

Radici Compounds AC90

Acetal (POM) Copolymer

Supplied by Radici Plastics USA, Inc.