
How to choose between UHMW vs. Delrin?
How to Choose Between UHMW vs. Delrin. Delrin: Reading Plastic Has the Answer; With nearly 40 years of experience machining and fabricating plastic, Reading Plastic’s experts can help you choose the right material for your project; Delrin, call us today at 610-926-3245. Readingplastic.com DA: 18 PA: 16 MOZ Rank: 45
What are the differences between teflon, nylon, and delrin?
The Properties of Nylon and Teflon
- Consists of carbon, hydrogen, oxygen, and nitrogen
- High molecular weight
- High mechanical strength
- Has lower melting point
- Offers increased resistance to friction
- Conducts electricity well
- More chemically reactive
- Thermoplastic
- Hydrophilic
- Consists of carbon and fluorine
Is Delrin food grade?
There are a variety of Delrin® grades for Healthcare applications, such as for medical devices as well as for Food Contact components, including standard unreinforced grades and specialty designed grades.
Does Delrin absorb water?
Delrin® is a family of Acetal Homopolymer whose properties include low water absorption and superior creep resistance, tensile strength, and fatigue endurance. It is resistant to hydrocarbons, solvents, and neutral chemicals and is recommended for bushings, fittings, impellers, and other mechanical and electrical applications.
What is the negative of Delrin?
What are the properties of acetal plastic?
What is Acetal Plastic Used For?
What industries use acetal plastic?
Why is acetal blue?
Is Delrin plastic interchangeable?
Is Delrin the same as acetal plastic?
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Whats the difference between acetal and Delrin?
Acetal can be produced as either homopolymer acetal or copolymer acetal. Delrin is a homopolymer form of acetal. The main difference between acetal and Delrin is that acetal can be found as either a homopolymer or a copolymer whereas Delrin can be found as a homopolymer.
What is the difference between acetal and POM?
Acetal plastic, also called polyacetal and polyoxymethylene (POM), is a general purpose, semi-crystalline, engineered thermoplastic. Acetal is commonly used for parts that need to be very stiff, have low surface friction and good dimensional stability.
What is another name for acetal?
Polyoxymethylene (POM) plastic, also known as "acetal" or "polyacetal", is a polyacetal (and a polyether), and a polymer of formaldehyde. 1,1-Diethoxyethane (acetaldehyde diethyl acetal), sometimes called simply "acetal", is an important flavouring compound in distilled beverages.
What is the generic name for Delrin?
Acetal is the common name for a family of thermoplastics with the chemical name "PolyOxyMethylene", or POM. Acetal is available in two general types of resins: Copolymer acetal (POM-C), and homopolymer acetal (POM-H); commonly called Delrin®.
Is Delrin and acetal copolymer?
Delrin® is an acetal homopolymer and has a uniform backbone with a larger crystalline block structure than acetal copolymers providing better chemical bonding. As a result, Delrin® is the stiffest and strongest unreinforced technical engineering polymer available.
What is stronger than Delrin?
Acetal has a better resistance to the effects of hot water and strong caustic solutions with a high pH value when compared to Delrin®. This makes Acetal a better choice for parts and materials handling applications involving the use of strong base chemicals.
What kind of plastic is Delrin?
Polyoxymethylene (POM), more commonly known as acetal or its branded name Delrin®, is an engineering plastic offering low friction, high stiffness, and excellent dimensional stability. Polyoxymethylene is a category of thermoplastics and includes many different formulations of the material, all of which vary slightly.
What material is acetal?
Acetal or Polyoxymethylene (POM), commonly known under DuPont's brand name Delrin®, is an engineering thermoplastic. It is a lightweight, low-friction and wear-resistant material with good physical and processing properties.
Is Delrin and nylon the same?
The major difference between Delrin and nylon comes from their method of creation. Delrin is a thermoplastic created from polyoxymethylene, while nylon is a synthetic thermoplastic from a reaction between a dicarboxylic acid and an amide. Both of these materials have desirable physical and mechanical properties.
Can you bend acetal plastic?
Yes, Delrin can be heated and bent but you should be careful not to heat it too close to its melting point where it will turn into a liquid.
Is Delrin the same as HDPE?
While HDPE Sheet and Acetal Sheet look similar, they perform quite a bit differently. Acetal is commonly known as: Delrin Homopolymer Acetal, Tecaform AH,Ensital, Unital, Pomalux, Ultraform and many more. HDPE is also known as: Ultraethylux, Densetec, Polystone G, Fortiflex, Versadur, Hostalen, and many more.
Is acetal a plastic?
Acetal (polyoxymethylene or POM) is a high strength, low friction engineering plastic that has excellent wear properties in both wet and dry environments. Acetal is chemically resistant to hydrocarbons, solvents, and neutral chemicals.
Is Delrin POM?
Delrin is the trademark name for a series of acetal resins which are semi-crystalline thermoplastic polymers which are also known by the abbreviation POM or polyoxymethylene. It's a general-purpose engineering thermoplastic.
What kind of plastic is POM?
POM material, commonly called acetal (chemically known as Polyoxymethylene) is manufactured by Ensinger in standard stock shapes for machining and is extruded in sheet, rod and tube. POM plastic is a semi crystalline thermoplastic with high mechanical strength and rigidity.
What is POM plastic used for?
Typical applications for injection-molded POM include high-performance engineering components such as small gear wheels, eyeglass frames, ball bearings, ski bindings, fasteners, gun parts, knife handles, and lock systems. The material is widely used in the automotive and consumer electronics industry.
What is the difference between nylon and acetal?
One of the most obvious differences between nylon and acetal lies is aesthetics; acetal is shiny, while nylon appears dull in comparison. They also vary in regard to performance. For example: Compared to acetal, nylon offers superior tensile strength and bending stiffness.
What is the difference between acetal and delrin?
The main difference between acetal and Delrin is that acetal can be found as either a homopolymer or a copolymer whereas Delrin can be found as a homopolymer.
How is Delrin made?
Delrin: Delrin is produced by the polymerization of anhydrous formaldehyde through anionic catalysis.
What is Delrin resin?
What is Delrin. Delrin is a homopolymer form of acetal. It is a form of acetal resin produced by a company named DuPoint. The heat deflection temperature of Delrin is about 257 0 F. The water absorption of Delrin is about 0.25%. Delrin product is sold in several forms such as Delrin rod, Delrin block, Delrin sheet, etc.
What is the process of synthesis of homopolymer acetal?
In the synthesis of homopolymer acetal, anhydrous formaldehyde is generated, followed by the polymerization of this anhydrous formaldehyde through anionic catalysis. However, the process of this synthesis results in a considerable centerline porosity.
Why is Delrin low density?
Delrin: Delrin has a low-density centre due to the presence of porosity in the centre.
What is the flexural modulus of Delrin?
The flexural modulus of Delrin is comparatively very high. It is about 420,000 psi. (Flexural modulus is the tendency of a material to bend).
Is acetal a homopolymer or copolymer?
Acetal can be produced as a homopolymer acetal form or a copolymer acetal form.
What is the difference between acetal and delrin?
The key difference between Delrin and acetal is that Delrin is a polymer material having the repeating unit (CH2O) whereas acetal is a functional group having the chemical formula R2C (OR’)2. Moreover, Deril contains a large number of repeating units of CH2O while acetal contains a saturated tetrahedral carbon centre bonded to an R group (or a hydrogen atom), two R’O groups and a hydrogen atom.
What is Delrin ( or POM)?
Delrin is the trade name for the polymer material polyoxymethylene or POM. It is also named as acetal, polyacetal and polyformaldehyde in polymer chemistry. It is a type of engineering thermoplastic material that is useful in precision parts requiring high stiffness, low friction, and excellent dimensional stability. It is a type of synthetic polymer material. This material is produced by different chemical firms with slightly different formulas, and these are sold using different names, including Delrin, Kocetal, Ultraform, Celcon, etc.
What is Acetal?
Acetal is a functional group having the chemical formula R2C (OR’)2. In this chemical formula, the R groups are either organic fragments or hydrogen while the R’ groups are only organic fragments but not hydrogen. Moreover, the two R’ groups can be equivalent to each other, giving a symmetrical acetal. If they are not equivalent, then we can get a mixed acetal.
What is the name of the polymer that is often confused with the term "acetal"?
The polymer material Delrin is sometimes commonly named as acetal; thus, it is often confused with the term acetal, which describes a type of functional group in organic chemistry.
Do acetals have the same oxidation state?
Typically, acetals are convertible to aldehydes or ketones. Therefore, they have the same oxidation state at the central carbon atom. However, the convertible forms have different chemical stability and reactivity when compared to the analogous carbonyl compounds. Moreover, the central carbon atom of an acetal group has the valency of four – meaning, four covalent bonds around it, making the carbon centre saturated. Also, this carbon centre has a tetrahedral geometry.
What is Delrin Good For?
Delrin is an excellent choice for industrial and mechanical applications . This is especially true for applications where the parts will be exposed to moisture or a wet environment. Other appropriate uses include gears, bearings, bushings, rollers, fittings, electrical insulator parts, and general CNC machining applications.
What Kind of Plastic is Delrin?
Delrin is the trademark name for a series of acetal resins which are semi-crystalline thermoplast ic polymers which are also known by the abbreviation POM or polyoxymethylene.
Is Delrin Stronger Than Nylon?
There is an overlap of the possible industry applications for both nylon and Delrin. Both have similar material properties and both are semi-crystalline thermoplastics. For example, both are used in the manufacture of bearings, gaskets, gears, rollers, and washers.
What is the Difference Between Delrin and UHMW?
UHMW stands for Ultra High Molecular Weight Polyethylene. It’s a low-cost plastic that can be used in a variety of applications and has the following benefits:
Can Delrin Plastic Be Glued?
These glues work by making the two surfaces of the material “sticky”. Hence, the material becomes one bonded piece when it’s allowed to dry. So, Delrin can’t be effectively glued.
Can You 3D Print Delrin?
Yes, Delrin can be 3D printed. Most of its 3D printing applications are high performance engineering components like gears and bearings. For this purpose, you’ll have to use a 3D printing filament and the right equipment to do the printing.
Can You Mold Delrin?
It’s also possible to mold Delrin and the resin is molded throughout the world in a variety of types and designs of injection equipment.
What is acetal resin?
Acetal is the common name for a family of thermoplastics with the chemical name "PolyOxyMethylene", or POM. Acetal is available in two general types of resins: Copolymer acetal (POM-C), and homopolymer acetal (POM-H); commonly called Delrin®. Each type of acetal has its own set of advantages and disadvantages.
Is Delrin a homopolymer?
Delrin® acetal homopolymer offers slightly higher mechanical properties than acetal copolymer, but may contain a low dens ity center (also known as " center line porosity") especially in large cross-sections. Delrin® also gives slightly less chemical resistance than copolymer acetal. As an example, Delrin® is ideal for small diameter, thin-walled bushings that benefit from the additional strength and rigidity of homopolymer acetal. Delrin® is available in colors of natural and black. Other advantages over copolymer acetal are:
What is the difference between a Delrin and a Copolymer?
There is a mechanical difference between homopolymer (Delrin) and copolymer (Acetal). Delrin has a higher melting point, is a little stronger, and has a few other slightly more initially desirable properties. The homopolymer is less uniform throughout its cross section. In thicker sheets, blocks, or rods of homopolymer, there will be little bubbles causing a less dense area which formed as part of the manufacturing process in the center. If you are machining a small hole through the center of an extruded rod of POM, the copolymer may be a better choice in this case. The name brand is usually more expensive. The copolymer is a little more elastic as well, but if you’re pushing the plastic hard enough to see this difference it may not be a good fit. It is possible that the copolymer will have better stability over a longer service life. Unless you are doing fancy stuff, just buy the cheapest, over engineer it, and it probably won’t matter which one you choose.
What are the drawbacks of Lased Delrin?
Part 1: Drawbacks of Lased Delrin and How to Slip Around them. Part 2: How to Build Anything With Delrin and A Laser Cutter. POM in many ways behaves like brass than compared to other plastics. It’s naturally stronger and stiffer than other plastics. It has low thermal expansion.
What is acetal homopolymer?
Acetal refer s to the pattern and shape of the molecule that makes up its building blocks. Delrin, is an acetal homopolymer unless otherwise specified by Dupont. When you buy acetal without a trade name attached, you are usually purchasing acetal copolymer. These are the two most common names for POM, but there are other formulations out there ...
What is the negative of Delrin?
One negative characteristic specific to Delrin over other acetal plastics is its increased centerline porosity—an inconsistency in the center of the plastic caused by gas escape in the cooling process. While not a concern when the center of a rod is to be drilled out, this property can be problematic in certain food and medical related applications ...
What are the properties of acetal plastic?
As a class of engineering thermoplastics, acetal plastic comes in a variety of forms and brands, each with slightly different physical characteristics—but they generally feature properties such as being light weight, low-friction, and wear resistant.
What is Acetal Plastic Used For?
Owing to its strength, rigidity, and stability, acetal plastic is widely desirable across industries for a range of potential uses. In some cases, these physical properties are strong enough that acetal plastics can replace metal components. For these reasons, acetal plastics are common in the following industries:
What industries use acetal plastic?
For these reasons, acetal plastics are common in the following industries: Automotive. Construction. Consumer Goods. Electrical. Food Processing and Packaging Industries. More specifically, these materials are often used to fabricate: Bushings and Bearings. Rollers.
Why is acetal blue?
For added safety, this acetal material is colored blue to increase its visibility to optical detection equipment in use many food plants.
Is Delrin plastic interchangeable?
Here’s the main takeaway: While Delrin does have some distinguishing properties, acetal plastics share enough in common that they are often interchangeable based on budget and other project-specific characteristics.
Is Delrin the same as acetal plastic?
Delrin is a type of acetal homopolymer and therefore generally interchangeable with others of the same class. This means that Delrin still offers the same core benefits of general acetal plastics, such as:

What Is Delrin ( Or Pom)?
What Is Acetal?
- Acetal is a functional group having the chemical formula R2C(OR’)2. In this chemical formula, the R groups are either organic fragments or hydrogen while the R’ groups are only organic fragments but not hydrogen. Moreover, the two R’ groups can be equivalent to each other, giving a symmetrical acetal. If they are not equivalent, then we can get a mixed acetal. Typically, acetals …
What Is The Difference Between Delrin and Acetal?
- Delrin and acetal are important organic compounds. Delrin is the trade name for the polymer material polyoxymethylene or POM. The key difference between Delrin and acetal is that Delrin is a polymer material having the repeating unit (CH2O) whereas acetal is a functional group having the chemical formula R2C(OR’)2. Moreover, Deril contains a large ...
Summary – Delrin vs Acetal
- Generally, the term acetal is used as a common, general term to describe Delrin. However, the term acetal in organic chemistry describes a specific organic chemical functional group. The key difference between Delrin and acetal is that Delrin is a polymer material having the repeating unit (CH2O) whereas acetal is a functional group having the chemical formula R2C(OR’)2. 1. “14.3: A…