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HFFR (Halogen Free Flame retardant)

HFFR formulations are based on ethylene copolymers blends, Evatane® or Lotryl®, with polyethylene and high mineral fillers loading, ATH or MDH, to optimize flame retardancy, mechanical properties and cost.

Evatane® resins in HFFR compounds allow:

  • Easy processing with high filler content (up to 65%) on major compounding equipments (internal mixers, double screws, Co-kneader).
  • Superior fire retardancy: higher LOI (Limited Oxygen Index) than PE, low smoke emission.
  • Excellent mechanical properties: good aging properties, good flexibility and chemical resistance.
  • Easy cross-linking with peroxides, silane, e-beam, to whistand high temperature (automotive T3 cables).

 

 

High fluidity Evatane 28-800 allows compound viscosity adjustment

HFFR standard formulation

Polymer matrix + Mineral filler Couplig agent
   
Filler acceptance, processability   Flame retardancy   Mechanical properties
   

Evatane®

Lotryl®

  ATH or MDH  

Orevac®

Lotader®

Recommended grades:  
For HFFR For semi-conductive layer For strippable semi-conductive layer
24-03  20-20  33-25
28-03    33-45
28-05    40-55
28-40    
28-420    
28-800