Mg(OH)₂ does not fight fire with chemistry that produces toxic gas. It gets hot, decomposes endothermically, releases water vapour and leaves a magnesium oxide char. That single difference is why it is specified in cables, rail interiors and building products.
Halogenated systems give off corrosive gas that destroys electronics and metal in the same enclosure.
Smoke density limits keep tightening in cable, rail and building specs.
High loading wrecks tensile strength and elongation — usually because the filler was never surface-treated.
Der Trade-off, den Sie einplanen sollten
Mg(OH)₂ needs higher loading than a halogenated system. That is the cost of zero halogen. We reduce it through particle size and surface treatment rather than by adding synergists you did not ask for.
Eine endotherme Reaktion bewirkt drei Dinge auf einmal.
Mg(OH)₂ + Wärme → MgO + H₂O ΔH > 0 (endotherm)
Nur schematisch. Zersetzungsbeginn und Massenverlust hängen von Qualität, Partikelgröße und Oberflächenbehandlung ab — fordern Sie das Datenblatt (TDS) für gemessene Werte an.
Built for low-smoke zero-halogen compounds: decomposes endothermically above 300 °C, releases water vapour rather than toxic or corrosive gas, and is surface-treated so it disperses in polyolefins without overloading the formulation with coupling agent.
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Mg(OH)₂ with a stearate, silane or customer-specified surface treatment, for compounds where dispersion and mechanical-property retention decide the formulation.
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Our highest-assay magnesium oxide: 99,7% MgO minimum, with CaO, chloride and iron held low enough for electronic ceramics and soft magnetic ferrite. Choose it when trace impurities, not reactivity, are the risk.
Details anzeigenThree parameters decide it: decomposition onset must sit above your processing temperature; particle size D50 sets the balance between flame retardancy per phr and flow; surface treatment decides dispersion and how much of your mechanical properties survive.
Yes. Independent inspection before loading is supported on request; you nominate the inspection company and the scope. Every batch is released against its own certificate of analysis in any case, and the tested value — not a range — is reported for every parameter.
Lead, arsenic, cadmium and mercury, tested per batch on food and pharma lots, with the measured value on the COA.
We hold ISO 9001 for the design, development, manufacture and sales of magnesium compounds. No certificate number, issuing body or validity date is published until the client supplies them. Other certifications, including REACH registration, food-contact and pharmacopoeia documentation, halal and kosher, are confirmed per destination market before quotation — ask our team for the current document set.
