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Precipitated Magnesium Hydroxide

Precipitated superfine magnesium hydroxide coated by KMT patent formula, can easy dispersing in PP, PE, EVA, POE, EPDM, XLPE, PA, ABS compound.

High purity, high whiteness, low moisture content, high bulk density, easy flow, anti-bridge and agglomeration-resistant, easily used in auto-loading and feeding system, low compounding torque, no white spot, good surface quality and no shark skin.
Gives good mechanical properties, good flame retardant and smoke absorb properties.
Coating: KMT patent.
Processing temperature less than 300°C.
Packing: 25kg bags or big bag.

Description

Reviews

GM Series --- Grinding Precipitated Magnesium Hydroxide

Introduction

Magnesium hydroxide GM product are widely used as a flame retardant in the rubber and plastics industries

GM3S is ground precipitated MDH, coated by silane, very good replacement of ATH and brucite.

GM3SA is ground precipitated MDH, coated by stearic acid.

Advantages

High purity and high whiteness, offers excellent flame retardancy and processing performance.

It is a premium alternative to mineral-based magnesium(brucite).

Adapt to high-speed extrusion processes and cost advantage compared to precipitated magnesium hydroxide.

Un-coated grade GM3 is suitable for a wide range of flame-retardant application.

Processing temperature less than 300°C

Packing: 25kg bags or big bag.

Grade	GM3	GM3S	GM3SA
Mg(OH)2 (%)	≥90	≥90	≥90
CaO (%)	≤0.2	≤0.2	≤0.2
Fe2O3 (%)	≤0.1	≤0.1	≤0.1
Acid Insolubles (%)	≤0.15	≤0.15	≤0.15
Loss on ignition (%)	≥30	≥30	≥30
Whiteness (R457%)	≥98	≥98	≥98
Particle Size D50 (μm)	2.5-3.2	2.5-3.2	2.5-3.2
BET (m2/g)	10-14	10-14	10-14
Moisture (%)	≤0.5	≤0.5	≤0.5
Coating	No coating	Silane coated	Stearic acid coated

PM Series

Introduction

MgCl2+2NH3•H2O=Mg(OH)2↓+2NH4Cl

Magnesium hydroxide product are widely used as a flame retardant in the rubber and plastics industries.

Advantages

High purity, high whiteness, low moisture content, high bulk density, gives good mechanical properties, good flame retardant and smoke absorb properties.

A good replacement of hexagonal plate type magnesium hydroxide in some formulas, cost saving solution for normal HFFR compound.

High purity and BET value, also suitable as a reaction raw material for Magnesium derivatives (such as magnesium stearate).

Coating: No patent.

Processing temperature less than 300°C.

Packing: 25kg bag or big bag.

Grade	GM3	GM3S	GM3SA
Mg(OH)2 (%)	≥90	≥90	≥90
CaO (%)	≤0.2	≤0.2	≤0.2
Fe2O3 (%)	≤0.1	≤0.1	≤0.1
Acid Insolubles (%)	≤0.15	≤0.15	≤0.15
Loss on ignition (%)	≥30	≥30	≥30
Whiteness (R457%)	≥98	≥98	≥98
Particle Size D50 (μm)	2.5-3.2	2.5-3.2	2.5-3.2
BET (m2/g)	10-14	10-14	10-14
Moisture (%)	≤0.5	≤0.5	≤0.5
Coating	No coating	Silane coated	Stearic acid coated

PM Series “SN” coated

Introduction

MgCl2+2NH3•H2O=Mg(OH)2↓+2NH4Cl

Coated by KMT patent formula, easy dispersing in PP, PE, EVA, POE, EPDM, XLPE, PA, ABS compound.

Advantages

High purity, high whiteness, low moisture content, high bulk density, easy flow, anti-bridge and agglomeration-resistant, easily used in auto-loading and feeding system, low compounding torque, no white spot, good surface quality and no shark skin.

Gives good mechanical properties, good flame retardant and smoke absorb properties.

Good replacement of hexagonal plate type magnesium hydroxide in some formulas, cost saving solution for normal HFFR compound.

Processing temperature less than 300°C.

Packing: 25kg bags or big bag.

Grade	PM5	PM5SN	PM3SN
Mg(OH)2 (%)	≥99	≥99	≥99
CaO (%)	≤0.10	≤0.10	≤0.10
Fe2O3 (%)	≤0.005	≤0.005	≤0.005
Acid Insolubles (%)	≤0.10	≤0.10	≤0.10
Loss on ignition (%)	≥30	≥30	≥30
Whiteness (R457%)	≥99	≥99	≥99
Particle Size D50 (μm)	1.4-1.7	1.4-1.7	2.5-3.2
BET (m2/g)	14-18	14-18	10-14
Moisture (%)	≤0.5	≤0.5	≤0.5
Coating	No coating	KMT patent	KMT patent

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