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Acetal Plastics - Sheets, Rods, Tubes and Accessories


Acetal (Polyoxymethylene) is a tough, stable engineering thermoplastic with a high modulus of elasticity, high strength, good rigidity, dimensional stability, resistance to moisture, solvents and other chemicals.

Acetal is also known by brand names including Delrin, Tecaform, and Sustarin.


Acetal Copolymer Extruded Black Sheet

Acetal Black
Extruded Sheet

Delrin Homopolymer Acetal Black Sheet

Delrin® Black
Homopolymer Sheet

Acetal Rod - Black

Acetal Black Rod

Acetal AF Blend 13% PTFE

Acetal Sheet 13%
AF PTFE Blend

Static Dissipative Acetal Plastic

Acetal ESD
Static Dissipative
         

Acetal Extruded Natural Sheets

Acetal Natural
Extruded Sheet

Delrin Homopolymer Natural Acetal Sheet

Delrin® Natural
Homopolymer Sheet

Acetal Copolymer Natural Rod

Acetal Natural Rod

Acetal Rod AF 13% PTFE Blend

Acetal Rod 13%
AF PTFE Blend

Sample Packs including Acetal Plastics

Sample Packs

Acetal Overview

Acetal is a tough, stable engineering thermoplastic with a high modulus of elasticity, high strength, good rigidity, dimensional stability, resistance to moisture, solvents and other chemicals. It has very desirable toughness properties, performing well at extreme temperatures and under fatigue endurance.

Acetal is easily machined with excellent dimensional stability for close tolerance parts. A low coefficient of friction and excellent wear properties, especially in wet or moist environments, make it easy to see why Acetal is one of the most widely used engineering thermoplastics available today.


 
  • High strength and stiffness

  • Excellent dimensional stability

  • Continuous use temperature of 180°F

  • Porosity free

  • Consistent properties in wet or moist environments

  • Very low moisture absorption

  • Excellent electrical properties

  • Easy to machine to close tolerances

  • FDA & USDA compliant grades available

 



Acetal Applications

Typical applications include gears, springs, plates, bushings and housings. The Food and Drug Administration has approved Acetal for use in the food industry.

• Mechanical: gears, sliding and guiding elements, housing parts, springs, chains, screws, nuts, fan wheels, pump parts, valve bodies

• Electrical Engineering: insulators, bobbins, connectors, parts for electronic devices such as televisions & telephones

• Vehicle: fuel sender unit, door lock systems, articulated shells

• Medical: insulin pens, metered dose inhalers (MDI)

• Furniture: hardware, locks, handles, hinges, curtains roles

• Packaging: aerosol cans, vehicle tanks

• Sports: paintball accessories, airsoft guns

• Clothing: zippers

• Music: picks, Irish flutes, bagpipes, practice chanters

• Dining: fully automatic coffee brewers; knife handles

 

Acetal versus Delrin

Delrin is DuPont’s trade name for acetal homopolymer.

Acetal is the name generally used in the plastics industry to refer to acetal copolymer.

Homopolymers are polymers that contain only a single type of subunit in their chain and copolymers are polymers containing a mixture of more than one type of subunit in their chain.

Delrin features a higher crystallinity meaning somewhat better mechanical properties including tensile strength, resistance to creep and impact strength.

Acetal features no center line porosity, better property retention at elevated temperatures. It's available in FDA compliant grades and has better chemical resistance to fuels and solvents.

 

Physical Properties of Acetal Sheet
Property Acetal
Copolymer
Delrin
Homopolymer
Density (lb/in^3) 0.051 0.051
Water Absorption @24 Hours 0.2% 0.2%
Tensile Strength (psi) 9500 11000
Tensile Modulus (psi) 400,000 450,000
Elongation at Break 30% 30%
Flexural Strength (psi) 12000 13000
Flexural Modulus (psi) 400,000 450,000
Compressive Strength (psi) 15000 16000
Hardness, Rockwell M88/R120 M89/R122
Dielectric Strength (V/mil) 420 450
*Values listed are typical and are meant only as a guide to aid in design. Field testing should be performed to find the actual values for your application.

 

Acetal Resistance:
R = Resistant | L = Limited Resistance | N = Non-Resistant
Chemical Acetal
Copolymer
Delrin
Homopolymer
Acetic Acid, 5%, 10% R LR
Acetic Acid, Concentrated LR N
Acetone R R
Ammonia Solution, 10% R LR
Benzene R R
Boric Acid, Aqueous Solution N R
Butyl Acetate R R
Carbon Tetrachloride R LR
Chlorobenzene R R
Chloroform N N
Citric Acid, Aqueous Solution 10% LR N
Cupric Sulphate, 10% R N
Diesel Oil R R
Dimethyl Formamide R N
Dioxane LR R
Ethanol 96% R R
Ethyl Acetate LR R
Ethylene Chloride N N
Formaldehyde, Aqueous Solution 30% R N
Glycerine R R
Hydrochloric Acid, Aqueous Solution 2% N N
Hydrochloric Acid, Aqueous Solution 36% N R
Hydrogen Peroxide, Aqueous Solution 0.5% LR R
Hydrogen Peroxide, Aqueous Solution 30% N R
Iodine solution, Alcohol solution LR R
Isopropanol R R
Lactic Acid R N
Methanol R R
Methyl Ethyl Ketone LR R
Methylene Chloride LR LR
Milk R R
Nitric Acid, Aqueous Solution 2% N R
Nitrobenzene LR LR
Ozone N N
Petroleum R R
Propanol R R
Pyridine R LR
Silicone Oils R R
Soap Solution R R
Sodium Bisulfite 10% N R
Sodium Carbonate 10% LR R
Sodium Chloride, Nitrate, Thiosulfate 10% R R
Tartaric Acid LR LR
Vaseline R R
Water, Cold R R
Water, warm LR N
Zinc Chloride 10% N R

Title  

Description  
Acetal Sheet - Black Extruded
Acetal is a tough, stable engineering thermoplastic.
Acetal Sheet - Natural Extruded
Acetal is a tough, stable engineering thermoplastic.
Delrin® Sheet - Black
Delrin offers an excellent balance of properties that bridge the gap between metals and plastic.
Delrin® Sheet - Natural
Delrin offers an excellent balance of properties that bridge the gap between metals and plastic.
Acetal Rod - Black
Acetal is a tough, stable engineering thermoplastic.
Acetal Rod - Natural
Acetal is a tough, stable engineering thermoplastic.
Acetal Sheet ESD Natural
ESD Acetal contains no carbon fibers or powders and is for clean room use.
Acetal Sheet - 13% AF Blend
Acetal AF blend has excellent sliding/friction/wear properties.
Acetal Rod - 13% AF Blend
Acetal AF blend has excellent sliding/friction/wear properties.

Friction Resistance Material Sample Pack
Includes a 6x6" sample of Acetal, Nylon, UHMW, and a 3x3" sample of PTFE
Machinable Plastics Material Sample Pack
6x6" sample of ABS, Acetal, Acrylic, HDPE, PVC, UHMW, and 3x3" sample of PTFE.
Tensile Strength Material Sample Pack
Includes a 6x6" sample of Acetal, Nylon, and PET.
Thermoplastics Material Sample Pack
6x6" sample of ABS, Acetal, Acrylic, Nylon, PVC, UHMW, PET, and a 3x3" sample of PTFE.

Turcite Rod - A
Self-lubricating engineered thermoplastic.
Turcite Rod - X
Turcite X is a self-lubricating engineered thermoplastic.
SHAFT COLLAR- DELRIN W/ STAINLESS STEEL SETSCREWS
Delrin/Acetal Shaft Collar, Various Sizes
SPUR GEAR- MOLDED- ACETAL
Acetal Spur Gear, Various Sizes

Onsrud - Plastic Router Bits
Plastic cutting bits by Onsrud are an industry standard in quality.
Onsrud High Speed Steel Two Flute Fractional Drill Bit
Plastic cutting bits by Onsrud are an industry standard in quality.
Plastic Saw Blades
Saw blades that offer premium performance on hard and soft plastics.



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Phone: 1 888 768 5759
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keith.j@interstateplastics.com
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