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Cogegum® GFR/325

Polyolefin

Supplied by Solvay Specialty Polymers

The technical datasheet with complete property values for Cogegum® GFR/325 is available to members of the Prospector Plastics Database.
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Product Description
HFFR silane grafted compound for cable insulation, moisture curable by addition of a catalyst masterbatch (Sioplas method). It consists of a polyolefin base containing a fire retardant system that contributes to give the cable self-extinguish properties without halogenidric acids evolution, toxic and corrosive gases and dark smoke emission. This material complies with RoHS requirements.

standard complying
  • EN 50363-5 EI5, EI8; EN 50363-0 G9, G10; VDE 0207/23 HJ1; VDE 0250/503 HJ3; IEC 60092/351 HF 90
General  
Material Status 
  • Commercial: Active
Availability 
  • Asia Pacific
  • Europe
  • North America
Features 
  • Crosslinkable
  • Flame Retardant
  • Halogen Free
  • Low Emissions
  • Low Smoke Emission
  • Low Toxicity
  • Self Extinguishing
Uses 
  • Cable Jacketing
RoHS Compliance 
Physical
Nominal Value
Unit
Test Method
Specific Gravity 2
 
 ASTM D792
Melt Mass-Flow Rate (MFR) (150°C/21.6 kg)
g/10 min
 Internal Method
Water Absorption - 24 hr (212°F)
mg/cm²
 IEC 60811
Mechanical
Nominal Value
Unit
Test Method
Tensile Strength (Break)
psi
 IEC 60811
Tensile Elongation (Break)
%
 IEC 60811
Hardness
Nominal Value
Unit
Test Method
Shore Hardness (Shore D)
 
 ISO 868
Thermal
Nominal Value
Unit
Test Method
Bending Test (5°F)
 
 IEC 60811
Hot Air Shrinkage - 1 h (212°F)
%
 IEC 60811
Hot Pressure Test 3 (212°F)
%
 IEC 60811
Hot Set 4
     IEC 60811
250°C, Elongation under load
%
  
250°C, Permanent elongation after cooling
%
  
Impact Test (5°F)
 
 IEC 60811
Aging
Nominal Value
Unit
Test Method
Change in Tensile Stress
     IEC 60811
261°F, 40 hr, in Air bomb, 0.55 MPa
%
  
275°F, 168 hr, in Air oven
%
  
Change in Tensile Strain at Break
     IEC 60811
261°F, 40 hr, in Air bomb, 0.55 MPa
%
  
275°F, 168 hr, in Air oven
%
  
Electrical
Nominal Value
Unit
Test Method
Volume Resistivity
     IEC 60502
68°F
ohm·cm
  
194°F
ohm·cm
  
Insulation Resistance Constant
     IEC 60502
68°F
Mohm·km
  
194°F
Mohm·km
  
Flammability
Nominal Value
Unit
Test Method
Oxygen Index
%
 ASTM D2863
Calorific Potential - Upper (gross)
MJ/kg
 ISO 1716
Corrosive Gas in Smoke
     IEC 60754-2
Conductivity
µS/mm
  
pH
 
  
Halogenidric Acid Emissions
%
 IEC 60754-1
Temperature Index (Burning)
°F
 NES 715
Additional Information
coloring
  • EVA based masterbatches added at 1.2-1.5% (approx.) by weight; in order to avoid scotching problems during processing, predrying of colour masterbatch is suggested if moisture absorption occurred during storage (4-6 hours at 60-70°C).

storage
  • The product should be stored under the following conditions:
    • closed and unbroken bags
    • ambient temperature not exceeding 30°C
    • avoid direct exposure to sunlight and weathering

  • Product alterations could occur due to extended period of storage. Its use within six months from the production date is suggested.
  • Solvay Padanaplast S.p.A. accepts no liability of any kind in case the above mentioned conditions are not fulfilled.

packaging
  • 25 kg moisture-resistant bags on 1375 kg pallet.
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Cogegum® GFR/325, Cogegum GFR325, Cogegum® , Cogegum, CogegumGFR325, GFR, GFR/325, GFR325, GFR:325, GFR+325, GFR-325, GFR_325, GFR 325, Polyolefin, Unspecified, Polyolefin Unspecified, Polyolefin, Solvay Specialty, PolyolefinUnspecified, 325GFR
Features
Features may also be described by the following terms: Zero Halogen Content, Halogen Free, Self Extinguishing, Self-Extinguishing, Low Emissions, Low Smoke Emission, Low Toxicity.
Extrusion
Nominal Value
Unit
 
Cylinder Zone 1 Temp.
°F
  
Cylinder Zone 2 Temp.
°F
  
Cylinder Zone 3 Temp.
°F
  
Cylinder Zone 4 Temp.
°F
  
Collar Temperature
°F
  
Head Temperature
°F
  
Die Temperature
°F
  
Extrusion Notes
processing
  • COGEGUM® GFR/325 must be added with Catalyst CT/2 masterbatch to promote curing. Catalyst dosage is 3% by weight and blending must be done just before using (2-3 hours max.), preferably in the extruder hopper. Catalyst doesn't need any predrying.
  • The pregrafted base compound is sensible to moisture; open bags must be used within few hours.

extrusion equipment
  • Standard extruders for thermoplastics equipped with low compression screw (1:1.2-1.4 compression ratio and 20-25 L/D ratio are suggested), and an adequate barrel thermoregulation. Screw cooling not required.
  • Filter net: 40-80 mesh/cm² max.

curing
  • by immersion in hot water at 60-70°C
  • by exposure to low pressure steam (about 0.15 bar)
  • by exposure in ambient at 10-30°C for some days

  • In all cases curing time depends on insulation thickness; for 0.7-1.2 mm wall thickness 3-6 hours are generally necessary in case of forced curing in hot water and 12-16 hours in case of curing in steam room; in case of self curing, time depends also on the specific ambient conditions.
Notes
1Typical properties: these are not to be construed as specifications.
223°C
3K=1, max blade penetration
420 N/cm²
 
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.