Alro logo Alro Steel was established in 1948 by Al and Robert Glick and has grown to include Alro Plastics, Alro Industrial Supply and Alro Metals Outlet.

Alro Plastics Product: ACETAL Family


Acetal plastics provide high strength and stiffness coupled with enhanced dimensional stability and ease of machining. As a semi-crystalline material, Acetal is also characterized by a low coefficient of friction and good wear properties, especially in wet environments.

Alro Plastics offers both homopolymer and copolymer grades of Acetal including enhanced bearing grade materials. Acetal Copolymer is porosity-free and offered as our standard general purpose grade. For slightly higher mechanical properties, we offer a broad size range of the homopolymer acetal (Delrin®) products. For improved frictional properties PTFE-enhanced Delrin® AF products are available.

See below for the different grades available within the Acetal family of plastics.


Acetal Copolymer is the generic name for a general purpose copolymer acetal material. This material provides the performance and machinability of acetal with very little centerline porosity. Acetals without centerline porosity are the preferred choice for food contact and medical applications.

Acetal Typical PropertiesAcetal Typical Properties


Acetron GP is Quadrant Plastics' general purpose copolymer acetal and is the only porosity-free acetal product available today. Acetron GP natural is FDA, USDA, NSF, Canada AG and 3A-Dairy compliant.

ACETRON® GP Typical Properties

Acetron® MD

This copolymer Acetal grade, containing a metal detectable additive, has been specifically tailored for use in the food processing and packaging industries where it can easily be traced by the conventional metal detection systems installed to detect contamination of the foodstuffs.

Acetron® MD Typical PropertiesAcetron® MD Typical Properties


Delrin, a homopolymer acetal, is also manufactured and stocked in rod and plate. It offers slightly higher mechanical properties than Acetron GP Acetal, but may contain a low-density center, especially in larger cross-sections.

Delrin® Typical Properties
Delrin® MSDS

Delrin® AF Blend

Delrin AF Blend is a unique thermoplastic material for use in moving parts in which low friction and long wear life are important. It is a combination of PTFE fibers uniformly dispersed in Delrin acetal resin.

Delrin® AF Typical Properties
Delrin® AF MSDS

Tecaform® UD Blue

Tecaform® UD Blue is the revolutionary new Ultra Detectable Acetal copolymer designed specifically for applications in the food industry. High speed food production lines detect particulate matter in food one of three ways; Using optical scanners, metal detection equipment or X-ray equipment.

Tecaform® UD BlueTecaform® UD Blue Brochure