Securoc® B25
- Chemical Name
- Magnesium Hydroxide
Securoc® B25 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.
Product families
Applications
- Consumer Goods — Appliances & Electronics
- Consumer Electronics
- Jacketing & Insulation
Product Families
- Flame Retardants
- Flame Retardants
Other characteristics
- Brand
- Securoc
- Synonyms
Magnesia hydrate, Magnesium dihydroxide, Magnesium hydroxide (Mg(OH)2), Magnesium(II) hydroxide, Milk of magnesia
- Functions
- Flame Retardant
- Markets
- Consumer Goods
- Electrical & Electronics
- Technology
- Elastomers
- Plastics
- Labeling Claims
- Halogen-free
- Material Features
- Excellent Smoke Resistance
- Flame Retardant
- Country Availability
- Canada
- USA
- Benefits and Features
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.
- Certifications and Compliance
- ISO 9001
- SVHC Compliant
- Plastics and Elastomers End Uses
- Appliances
- Cable Jacketing
- Plastics and Elastomers Functions
- Flame Retardant
Technical data
Table 1 of 3
8 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Specific Surface Area | 7.0 | m²/g | BET |
| Brightness (R457) | 92.0 | % | ISO 2470 |
| Moisture Content | 0.3 | % | ISO 787/2 |
| pH | 10.0 | — | ISO 787/9 |
| Density | 2.4 | g/cm³ | — |
| Loose Apparent Density | 0.5 | g/cm³ | AP method (MF-17) |
| Hardness | 3.0 | — | Mohs’ scale |
| Thermal Stability | approx. 340 | °C | DSC |
Table 2 of 3
5 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Percentage Passing on Individual Sieve (25 μm) | 0.0 | % | Sympatec Laser diffraction dry dispersion |
| Particle Size (D10) | 0.8 | μm | Sympatec Laser diffraction dry dispersion |
| Particle Size (D50) | 2.8 | μm | Sympatec Laser diffraction dry dispersion |
| Particle Size (D90) | 11.7 | μm | Sympatec Laser diffraction dry dispersion |
| Particle Size (D97) | 17.9 | μm | Sympatec Laser diffraction dry dispersion |
Table 3 of 3
5 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Magnesium Oxide (MgO) | 65.0 | wt% | XRF |
| Calcium Oxide (CaO) | 1.2 | wt% | XRF |
| Silicon Dioxide | 1.2 | wt% | XRF |
| Ferric Oxide (Fe₂O₃) | 0.3 | wt% | XRF |
| Loss on Ignition (1050°C, 1 hour) | approx. 30 | wt% | Gravimetric |
