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Zerogen® 50 SP

Technical DataSheet | Supplied by Huber Engineered Materials

Zerogen® 50 SP by Huber Engineered Materials is a magnesium hydroxide (≥99 % (untreated base)) grade. Acts as a flame retardant and smoke suppressant. Present as odorless white powder. It is a vinyl silane-treated product designed to provide excellent compounding rheology and high-quality dispersion into such polymers as polyolefins, EPR/EPDM and other elastomers. The vinyl silane treatment also improves mechanical properties. They can decompose in an endothermic reaction to form water and magnesium oxide. Compatible with thermoplastic or crosslinked polymer compounds. Suitable for use in compound applications where excellent electrical properties are needed, such as in cable insulation materials. Zerogen® 50 SP by Huber Engineered Materials listed on REACH (Registration, Evaluation, Authorization and Restriction of Chemicals).

Zerogen® 50 SP Product details

Product Type
Chemical Composition
Physical Form
Product Status
Applications/ Recommended for
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Labels/Agency Rating

Zerogen® 50 SP Properties


Value & Unit
Test Condition
Test Method
Specific Gravity
xxxx g/cm3
Refractive Index
xxx Mohs
325 Mesh Residue
xxxxx %
Median Particle Size by Sedigraph
x microns
Specific Surface Area (BET)
x m2/g
Loss on Ignition @ 1200°C, untreated base
xxxx %
pH (5% water suspension)
Solubility in water @ 25°C
xxxx mg/l
Decomposition temperature
xxx °C
Free Moisture @105ºC
xxxxx %
Calcium Content
xxxxx %
Chloride Content
xxxxx %
Iron Content
xxxxxx %
Relative Density @ 20ºC
xxx g/cm3
Melting point/freezing point
xxx °C
Molecular weight
xxxxx g/mol
Last edited May 25, 2018
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