FLAME RETARDANCY
Zinborel® is a Boron based flame retardant compatible with many polymeric matrices. It is effective both in the solid phase and in the gas phase and its strong smoke suppressing action, helps to improve time of rescue in case of fire.

Zinborel® is a multifunctional flame retardant:

• promotes the formation of a protective vitreous layer and of a strong char layer, which reduces the formation of toxic and irritant smoke during the fire
• It looses its water of hydration at temperatures above 290°C, cooling the front of the flames and subtracting energy to the fire
• It acts as a synergist in conjunction with halogenated compounds, so that lower loadings of halogenated flame retardant additives are needed
• It shows a strong synergic effect with antimony trioxide; in presence of alumina trihydrate (ATH) the synergic effect is enhanced
• It improves resistance against electrical degradation: high anti-arcing and anti-tracking indexes
• It is an afterglow suppressant.

Furthermore, Zinborel®'s refractive index of 1.57, similar to that of many polymeric matrices, allows lower charges of pigments.