Description
KOMAD 8418 VO is one of the raw materials used in manufacturing food grade aluminium-complex lubricating greases.
Using KOMAD 8418 VO, the grease manufacturing process is quick and simple. Only three materials, base oil, KOMAD 8418 VO and benzoic acid are needed.
Product description
KOMAD 8418 VO is one of the raw materials used in manufacturing food grade aluminium-complex lubricating greases. Chemically it is aluminium-oxo-stearate, dissolved in white oil ISO VG 46.
Chemical type
aluminium-oxo-stearate
It is a viscous honeylike liquid, easy to handle by heating up to 60-70°C in a warm chamber.
The product contains stearic acid but only of vegetable origin.
It can be characterised by the following formula:
Product benefits
In comparison with other aluminium thickeners available for lubricating grease production, the main advantages of KOMAD 8418 VO are the following:
- A quick and simple way of grease manufacturing
- Moderate flammability and no fire hazard
- Lack of significant alcohol release during grease production
- An alcohol condensation system is not necessary
- Less energy consumption, more uniform product quality, better reproducibility
Application
Grease
Using KOMAD 8418 VO, the grease manufacturing pro¬cess is quick and simple. Only three materials, base oil, KOMAD 8418 VO and benzoic acid are needed. Grease composition depends on the type of base oil used and the NLGI grade to be produced.
In general, at NLGI-2 consistency, approximate grease composition is:
- Base oil (46 mm2/s at 40°C) 85.6 mass %
- KOMAD 8418 VO 12.2 mass %
- Benzoic acid 2.2 mass %
Use of higher VI base oil needs a lower ratio of KOMAD 8418 VO and benzoic acid.
Storage and handling instruction
KOMAD 8418 VO is shipped in 213 litre steel drums, each of 180 kg in net weight. This aluminium compound is sensitive to water so the product must be stored in a dry place. The upper layer of exposed KOMAD 8418 VO reacts with the moisture content of the air resulting in a hard surface „skin”. KOMAD 8418 VO can be stored in drums tightly closed for several months without any quality loss problems.
It is advisable to heat it up to 60–70°C before use.
| Characteristics | KOMAD 8418 VO |
|---|---|
| Visual | viscous honeylike liquid |
| Aluminium content, mass % | 4.0 - 4.3 |
| Stearic-acid content, mass % | 40.0 - 43.0 |
| Flash point (COC), °C | min. 170 |
Packaging
Produced in 180 kg closed head steel drum.
Procedure
Pour the whole quantity of base oil mixture into a closed kettle. Start stirring and heating. At about 60°C, powdered benzoic acid is added. After the benzoic acid dissolves, pre warmed KOMAD 8418 VO is charged at 70–80°C. In the saponification stage – up to 150°C –a slight odour of isopropyl alcohol can be observed and so it is advisable to ventilate the system. A quicker and appropriate stirring of the grease can also be useful at this stage to reach a more homogenous and stable grease structure. The maximum temperature is about 200–220°C, mainly depending on the type of base oil used. After reaching the maximum temperature, the grease is immediately cooled. Finishing operations under 80°C are standard: blending with additives, milling, de-aeration and packaging.
Safety
KOMAD 8418 VO offers no specific hazard to the environ¬ment. In contact with water, it decomposes quickly into aluminium hydroxide and stearic acid and becomes apowder-like substance. This is why spillages can easily be avoided by pouring on water and then brushing.KOMAD 8418 VO offers no specific toxic or caustic effects. Contact with the skin will not cause skin irritation.