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 POM-C?
Acerin Delrin is a POM-C without additives that offers a unique balance between its physical properties that most other thermoplastics do not have. This acetal copolymer is an engineering plastic made for a wide variety of universal applications in many different sectors.
What type of material 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 kind of plastic is POM?
polyoxymethylene
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 POM-C material?
POM-C otherwise known as Acetal Copolymer is an engineered plastic. The highly crystalline resins are strong, rigid and have a low coefficient of friction in comparison to metals and other plastics. It is also creep resistant and is recommend for applications where dimensional stability is important.
Which is harder Delrin or UHMW?
Delrin is stiffer and stronger in unfilled form, has shorter molding cycles, easy to machine, low moisture absorption, and better surface finish.
What Delrin 500?
Delrin® 500P is a general purpose medium viscosity acetal homopolymer for injection molding. It has improved processing thermal stability, a good combination of mechanical properties, and low VOC emissions.
Is POM same as nylon?
Polyacetal or Polyoxymethylene (POM) is above all recognised for its hardness, specifically when compared to Nylon, which in other ways is a very similar material to POM. If you are looking for dimensional stability, POM is preferable to Nylon. It is also far easier to machine.
What is POM material 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.
Is POM plastic toxic?
Results: POM brackets produce toxic formaldehyde gas whether heated or mechanically abraded. Patients who wear these brackets are being exposed to, at the very least, a potential irritant.
Is Delrin and acetal the same?
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: Excellent dimensional stability. Friction, fatigue, and abrasion resistance.
What is POM nylon?
Acetal—also known as polyoxymethylene (POM)—is a synthetic polymer commonly used in precision engineering. Similar to other semi-crystalline thermoplastics, it has good chemical resistance and fatigue resistance.
What is the difference between Delrin and Teflon?
Delrin is a thermoplastic material, unlike Teflon. Teflon is made of polytetrafluoroethylene. Whereas, Delrin is composed of polyoxymethylene. Teflon has dielectric properties and is used in electric circuits.
What is the difference between Delrin and nylon?
The key difference between Delrin and nylon is that Delrin is a thermoplastic made from polyoxymethylene, whereas nylon is a thermoplastic made from the reaction between an amide and dicarboxylic acid. Delrin is the trade name for the polymer material polyoxymethylene or POM.
What is equivalent to Delrin?
Acetal Copolymer
Acetal Copolymer
The copolymer grade offers excellent performance at a slightly lower cost than Delrin®. Acetal copolymer offers consistent properties throughout the shape (being free of centerline porosity).
Is Delrin same as UHMW?
UHMW has surface and chemical properties that are rare to find in high-performance polymers. It is very resistant to most chemicals, UV radiation, and micro-organisms, but doesn’t have the same creep resistance as Delrin.
What is better 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.
Who manufactures Delrin?
DuPont
Authentic Delrin® acetal homopolymer is available exclusively from DuPont, authorized DuPont distributors, and from stock shape suppliers in a variety of forms (sheets, rods, tubes).
Can you glue Delrin?
Delrin in particular cannot be glued to itself with any sort of significant bond strength with a one-part. By saying Delrin I am referring to both acetal homopolymer and acetal copolymer. The reason for thisis that one-part solvent based adhesives do not dissolve the surface of Delrin plastic shapes properly.
Can you machine Delrin?
Delrin is suitable for machining processes like milling and turning, and is supplied in sheets or extruded bars for this purpose. The material can also be cut with a laser cutter, and its granulated form is used for injection molding and plastic extrusion.
Is nylon a LDPE?
LDPE Machining | Vanderveer Industrial Plastics.
Comparison of Nylon and LDPE Property Values.
| Extruded Nylon | Cast Nylon |
|---|---|
| 1.2 | 0.6 – .12 |
| 12,400 | 10,000 – 13,500 |
| 410,000 | 420,000 – 500,000 |
| 4.5 | 5 |
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