Delrin is DuPont’s brand name for POM homopolymer, while generic “acetal” typically refers to POM copolymer. Both are polyoxymethylene engineering plastics used in precision mechanical applications.
POM Homopolymer (Delrin) Properties
POM homopolymer offers tensile strength of 70 MPa (highest of all acetal grades), flexural modulus of 2,800 MPa, elongation at break of 40% (most ductile), and excellent fatigue resistance for cyclic loading applications.
POM Copolymer Properties
POM copolymer provides better chemical resistance against acids and hot water, excellent hot stamping capability for decorated parts, improved stability with less centerline porosity, and typically lower cost than homopolymer.
Auswahlhilfe
Choose homopolymer (Delrin type) for precision gears with high loads, snap-fit designs, and applications requiring highest strength. Choose copolymer for chemical exposure environments, decorated parts, and cost-sensitive applications. For high-strength applications, consider our PA66-CF30.
Source POM Materials
As a specialized source manufacturer, we supply both POM homopolymer and copolymer in rod and sheet forms. Kontakt for technical support and pricing.
FAQ
How do you know whether HDPE vs UHMW-PE — Which Polyethylene Is Right for Your Application? fits a part?
HDPE vs UHMW-PE — Which Polyethylene Is Right for Your Application? fits a part when its load capacity, temperature range, moisture exposure, wear behavior, and processing method match the real service conditions.
What properties should be checked for HDPE vs UHMW-PE — Which Polyethylene Is Right for Your Application??
Prüfen Sie Festigkeit, Steifigkeit, Schlagfestigkeit, Hitzebeständigkeit, Feuchtigkeitsaufnahme, Formstabilität, Reibung, Verschleiß und chemische Verträglichkeit.
What is the biggest selection risk for HDPE vs UHMW-PE — Which Polyethylene Is Right for Your Application??
Das größte Risiko besteht darin, sich auf einen Wert aus dem Datenblatt zu verlassen, ohne die tatsächlichen Umgebungsbedingungen, das Verarbeitungsverfahren, die Bauteilgeometrie und die langfristige Nutzung zu berücksichtigen.
When should HDPE vs UHMW-PE — Which Polyethylene Is Right for Your Application? be tested before production?
Prüfungen werden empfohlen, wenn das Bauteil Belastungen, Hitze, Chemikalien, Feuchtigkeit, engen Toleranzen, gesetzlichen Anforderungen oder einer neuen Betriebsumgebung ausgesetzt ist.
