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Celcon® LW25-S2

Acetal (POM) Copolymer

Supplied by Ticona

The technical datasheet with complete property values for Celcon® LW25-S2 is available to members of the Prospector Plastics Database.
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Product Description
Celcon® LW25-S2 acetal copolymer is a low flow, improved toughness product formulated with a low level of silicone to reduce friction and improved wear resistance.
General  
Material Status 
  • Commercial: Active
Availability 
  • Latin America
  • North America
  • South America
Additive 
  • Silicone Lubricant
Features 
  • Copolymer
  • Good Toughness
  • Good Wear Resistance
  • Low Flow
 
RoHS Compliance 
Forms 
  • Pellets
Processing Method 
  • Injection Molding
Physical
Nominal Value
Unit
Test Method
Density
g/cm³
ISO 1183
Melt Volume-Flow Rate (MVR) (190°C/2.16 kg)
in³/10min
ISO 1133
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus
psi
ISO 527-2/1A/1
Tensile Stress (Yield)
psi
ISO 527-2/1A/50
Tensile Strain (Yield)
%
ISO 527-2/1A/50
Flexural Modulus (73°F)
psi
ISO 178
Impact
Nominal Value
Unit
Test Method
Charpy Notched Impact Strength (73°F)
ft·lb/in²
ISO 179/1eA
Notched Izod Impact Strength (73°F)
ft·lb/in²
ISO 180/1A
Thermal
Nominal Value
Unit
Test Method
Heat Deflection Temperature (264 psi, Unannealed)
°F
ISO 75-2/A
Melting Temperature 2
°F
ISO 11357-3
CLTE
    ISO 11359-2
Flow
in/in/°F
 
Transverse
in/in/°F
 
Related Terminology
This supplier and product may also be known by these terms: Celcom

Product names can be difficult to match. You may have searched any one of these terms to find this product: Celcon® LW25-S2, Celcon LW25S2, Celcon® , Celcon, CelconLW25S2, LW 25, LW 25 S 2, LW25-S2, LW25S2, LW25:S2, LW25/S2, LW25+S2, LW25_S2, LW25 S2, LW25, 25S, S2, Acetal Copolymer, Acetal Copolymer, Acetal (POM) Copolymer, Acetal POM Copolymer, Acetal, pom, Ticona, AcetalPOMCopolymer, 25LW
Features
Features may also be described by the following terms: Good Toughness, Tough, Good Wear Resistance, Wear Resistant, Low Flow, Low Melt, Low MFI.
Injection
Nominal Value
Unit
 
Processing (Melt) Temp
°F
 
Mold Temperature
°F
 
Injection Notes
Standard reciprocating screw injection molding machines with a high compression screw (minimum 3:1 and preferably 4:1) and low back pressure (0.35 Mpa/50 PSI) are favored. Using a low compression screw (I.E. general purpose 2:1 compression ratio) can result in unmelted particles and poor melt homogeneity. Using a high back pressure to make up for a low compression ratio may lead to excessive shear heating and deterioration of the material.

Melt Temperature: Preferred range 182-199 C (360-390 F). Melt temperature should never exceed 230 C (450 F).

Mold Surface Temperature: Preferred range 82-93 C (180-200 F) especially with wall thickness less than 1.5 mm (0.060 in.). May require mold temperature as high as 120 C (250 F) to reproduce mold surface or to assure minimal molded in stress. Wall thickness greater than 3mm (1/8 in.) may use a cooler (65 C/150 F) mold surface temperature and wall thickness over 6mm (1/4 in.) may use a cold mold surface down to 25 C (80 F). In general, mold surface temperatures lower than 82 C (180 F) may hinder weld line formation and produce a hazy surface or a surface with flow lines, pits and other included defects that can hinder part performance.
Notes
1Typical properties: these are not to be construed as specifications.
210°C/min
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.