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Securoc® B45 is produced from carefully selected, naturally occurring magnesium hydroxide. The standard quality of Securoc® B is guaranteed by means of an ISO 9001-certified quality management plan. The chemical composition of the raw material and the finished product is closely monitored, and particle size is kept within a narrow variation. Securoc® B products are developed as functional halogen-free flame retardant (HFFR) fillers for plastics and rubbers. Their flame retardant activity is primarily due to the endothermic decomposition of metal hydroxide (the heat sink effect) and the simultaneous release of water vapor. This reaction starts at about 300°C. Besides being flame retardant, they also possess a strong smoke-suppressing ability. These flame retardants are used in applications where processing temperatures exceed 200ºC, making ATH unsuitable. Its main uses are in wire and cable compounds, polyolefin roofing membranes, and electrical appliances based on thermoset compounds.

Chemical Name: Magnesium Hydroxide

Functions: Flame Retardant

Synonyms: Magnesia hydrate, Magnesium dihydroxide, Magnesium hydroxide (Mg(OH)2), Magnesium(II) hydroxide, Milk of magnesia

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Name
Plastics & Elastomers Functions

Features & Benefits

Labeling Claims
Features and Benefits
  • Development of Halogen Free Flame Retardant (HFFR) products is one of the ongoing high priority areas of the industry. The application of mineral based flame-retardant fillers is one of the options to replace the traditional halogenated FR-products that are in the process of new regulatory measures from the authorities. Hot topics are the persistency of halogenated flame retardants in the environment and the formation of polyhalogenated toxic compounds during thermal degradation of certain halogenated flame-retardants.
  • Securoc® B products are utilized as effective and economical flame retardants and/or smoke suppressants. They are not classified as a dangerous substance (DSD and CLP) and do not contain Substances of Very High Concern (SVHC), including their decomposition products from fire.
     

Applications & Uses

Plastics & Elastomers End Uses

Properties

Physical Properties
ValueUnitsTest Method / Conditions
Specific Surface Area5.0m²/gBET
Brightness (R457)92.0%ISO 2470
Moisture Content0.3%ISO 787/2
pH10.0ISO 787/9
Density2.4g/cm³
Loose Apparent Density0.6g/cm³AP method (MF-17)
Hardness3.0Mohs’ scale
Thermal Stabilityapprox. 340°CDSC
Particle Size Distribution
ValueUnitsTest Method / Conditions
Percentage Passing on Individual Sieve (80 μm)0.01%Alpine air jet
Particle Size (D10)0.9μmSympatec Laser diffraction dry dispersion
Particle Size (D50)3.7μmSympatec Laser diffraction dry dispersion
Particle Size (D90)25.0μmSympatec Laser diffraction dry dispersion
Particle Size (D97)34.0μmSympatec Laser diffraction dry dispersion
Chemical Analysis
ValueUnitsTest Method / Conditions
Magnesium Oxide (MgO)65.0wt%XRF
Calcium Oxide (CaO)1.2wt%XRF
Silicon Dioxide1.2wt%XRF
Ferric Oxide (Fe₂O₃)0.3wt%XRF
Loss on Ignition (1050°C, 1 hour)approx. 30wt%Gravimetric

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Country Availability
Regional Availability
  • Canada
  • USA