Tisaform® POM

Tisaform® POM is the registered trade mark for Polyoxymethylene-acetal compounds produced by Tisan.
Polyoxymethylene (commonly referred to as POM and also known as polyacetal or polyformaldehyde) is an engineering thermoplastic used in precision parts that require high stiffness, low friction and excellent dimensional stability. Available in two structures: copolymer (POMC) and homopolymer (POMH). POM is characterized by good fatigue life, high resistance to solvents and chemicals and good electrical properties. Acetals often compete with nylons for many of the same applications.

 

Tisaform® POM is used where requirements for good moldability, fatigue resistance and stiffness justify its high price.

Tisaform® POM has high tensile strength, stiffness, resilience and moderate toughness under repeated impact.

Tisaform® POM has high resistance to organic solvents, excellent dimensional stability, a low coefficient of friction and outstanding abrasion resistance among thermoplastics.

Tisaform® POM, formulations can also be developed to meet specific market needs.
Tisaform® POM is a fully recyclable material and it can be reused after regrinding.
The user shall always verify that the compound obtained by mixing virgin and reground material is suitable for the specific application and that its properties meet the requirements.
Tisaform® POM grades can be provided fully colored in customized colors with narrow color specifications colorability even in light colors.


Main specifications

Modification of POM by compounding with glass fiber and other modifying additives produces a substantial change in the properties of the base material and gives to compositions based on Tisaform® POM the following properties:
Resistance to chemicals, dimensional stability, high strength and stiffness, machinability, highly crystalline, more creep resistant than Nylon, good resistance to solvents (except phenols), low smoke emission, high gloss surfaces, high rigidity, high resistance to impact and also to low temperatures, physiological indifference, good characteristics of electric insulation.

Fillers / reinforcements / modifiers
Glass fibers-glass beads-aramid fiber are available with varying contents in different combinations. And also filled materials containing PTFE and molybdenum disulphide are available for bearing materials with appropriately low friction and improved wear.

 

 M UNR K04 R01 POM, unreinforced, impact modified, natural PDF Görüntüle
 M 20D03 K02 R01 POM, 20% glass fiber reinforced,
heat stabilized, natural
PDF Görüntüle
 M 25D03 K02 R01 POM, 25% glass fiber reinforced,
heat stabilized, natural
PDF Görüntüle
 M 30D03 K02 R01 POM, 30% glass fiber reinforced,
heat stabilized, natural
PDF Görüntüle
 M 20D05 K02 R01 POM, 20% glass bead reinforced, natural PDF Görüntüle
Main Specifications

Modification of POM by compounding with glass fiber and other modifying additives produces a substantial change in the properties of the base material and gives to compositions based on Tisaform® POM the following properties:

  • Resistance to chemicals,
  • Dimensional stability,
  • High strength and stiffness,
  • Machinability,
  • Highly crystalline,
  • More creep resistant than Nylon,
  • Good resistance to solvents (except phenols),
  • Low smoke emission,
  • High gloss surfaces,
  • High rigidity,
  • High resistance to impact and also to low temperatures,
  • Physiological indifference,
  • Good characteristics of electric insulation.
Product Types

 

Glass fibers-glass beads-aramid fiber are available with varying contents in different combinations. And also filled materials containing PTFE and molybdenum disulphide are available for bearing materials with appropriately low friction and improved wear.

 

Application Areas

Tisest PBT finds itself application in many industries. Among these sectors are listed below.

  • Electric & Electronic
  • Automotive Construction
  • Mechanical Engineering
  • Construction
  • Household & Optic
  • Others
Packing & Storage

Tisaform® POM are supplied in pellet form in moisture-proof 25 kg aluminum layer bags. Other forms of packing like octabins and big-bags with PE or aluminum in-liners are also available. During storage the material should be keep away from moisture and heat. A dry storage room or area is recommended, also sacks are used to protect the material from damage. Damaged material or ripped sacks should be closed tightly or transferred to metal containers and in some cases, drying may be necessary before use.

 

Acids Dilute Acids Concentrated Alkalis Alcohols Aromatic Hydrocarbon Oils and Greases Halogenated Hydrocarbon Ketones
Good-fair Poor Good Good-fair Good Good Good-poor Good-fair
Tisaform POM
Predrying Temperature 80 – 90 C
Predrying Time 2-3 saat
Maximum Moisture
Melting Temperature 180-220 C
Nozzle Temperature 190-200 C
Pre-3 Region Temperature 190-200 C
Mid-2 Region Temperature 180-200 C
Aft-1 Region Temperature 160-180 C
Mold Temperature 50-90 C
Back Pressure 0,1-0,5 MPa