Halogen-free base:
Nitrogen
Main polymers:
PA, PU
Mechanism:
Due to thermal decomposition, it acts as an inert gas source in the gas phase thereby reducing oxygen and fuel gases. Special N-FR can work as a radical scavenger.
LuV products:
PE FR 4011
PA FR 0014
PA FR 0266
Halogen-free base:
Phosphorus
Main polymers:
Technical Plastics & Polyolefins
Mechanism:
Depending on the compound, it acts in the condensed phase by promoting char and/or is active in the gas phase as a radical scavenger.
LuV products:
PP FR 0234
PP FR 0377
PBT FR 0378
PET FR 5499
PET FR 0379
PET FR 0380
Inovia products:
AR-S11
BR-S13
CR-M1406
CR-M1631
CR-M6135
CR-M1431
DR-S15
ER-M1701
ER-M1800
Halogen-free base:
Mineral
Main polymers:
Polyolefins
Mechanism:
Through endothermic reactions they decompose, absorbing heat, thus cooling the solidification phase. In parallel, they release water gas in the gaseous phase reducing oxygen and fuel gases as a result.
LuV products:
LUVOMAG®
Halogen-free base:
Intumescence
Main polymers:
Polyolefins, PU, thermosets
Mechanism:
Act in the solidification phase by promoting char formation. The subsequent foaming leads to intumescence: the foamed char layer protects the surface of the polymers against the flame.
LuV products:
PP FR 0376
PE FR 0385
PE FR 0386