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Home > Part C: 5mm to 150mm POM sheet, Delrin sheet, Acetal sheet
Part C: 5mm to 150mm POM sheet, Delrin sheet, Acetal sheet

 

Polyacetal sheets, plates and rods are among the strongest and stiffest of all thermoplastics. Polyacetal and Delrin plastic materials are characterized by good fatigue life, low moisture sensitivity, and high resistance to solvents and chemicals. Polyacetal products also contain good electrical properties. Homo-polymer and Copolymer grade of Polyacetal are available including an enhanced bearing grade material.

Polyacetal -POM is a semi crystalline engineering plastic that is beneficial to engineering applications, and is suited to CNC machining

 

Polyacetal - POM Sheet & Delrin Rods Characteristics:

High mechanical strength

Excellent resilience

Good creep resilience

High impact strength, even at low temperatures

Very good dimensional stability

Good sliding properties and wear resistance

Excellent machinability

Physiologically inert (most grades are suitable for food contact

 

Polyacetal -POM Sheet & Rod Applications

Gear wheels with small modulus, cams, heavily loaded bearings and rollers, bearing and gears with small clearances, valve seats, snap fit assemblies, dimensionally stable precision parts, and electrically insulating components.

Polyacetal -POM Products

Polyacetal (POM-C) Color: Natural (white) / black

Polyacetal Co-polymer, (POM-C) is more resistant against hydrolysis, strong alkalis and thermal-oxidative degradation than the polyacetal homo-polymer (POM-H).

Polyacetal (POM-H) Color: Natural (white) / black

Polyacetal Homo-polymer (POM-H) has higher mechanical strength, stiffness, hardness and creep resistance as well as a lower thermal expansion rate when compared to polyacetal (POM-C) and often it also presents a better wear resistance.

 

PROPERTIES OF POM-POLYACETAL rod
PROPERTY ASTM POM-POLYACETAL
Specific gravity D792 1.43
P.S.I. Tensile Strength D638 8800
% Elongation D638 40.75
P.S.I. Comprehensive Strength D695 16000 (10% defl.)
Impact Strength(1/2x1/2 in. notched) D256 1.0-1.5 (1/2x1/2inbar)
Hardness Rockwell D785 M78-M80
105 P.S.I. 730 F Flexural Modules D790 3.75
Coefficient of friction -- 0.18
-104 cal sec cm3 C cm Thermal conductivity C177 5.5
Thermal expansion 105per0C D696 8.5
Resistance to heat0C (Continuous) -- 800 C
1200 C
Ω - cm (23 0C50%) Volume resistivity D257 10 x 1014
1/8 in thickness volts mil Dielectric strength D149 500 (90mil)
1 KHz Dielectric constant D150 3.7
1 KHz Dissipation (power) factor D150 0.0010 (40mil)
24/j3.2 mm % water absorption 24hr. 3.2 thickness, % D150 0.22
in mm Burning rate D570 1.0 - 1.1
Effect of weak acids D635 Resistant to some
Effect of strong acids D543 Attacked
Effect of weak alkalies D543 Attacked
Effect of strong alkalies D543 Attacked
Effect of organic solvents D543 Excellent resistance to practically all  solvents.

 

 

 

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