Everything You Need to Know About Aluminum Powder before Buying
Need to buy aluminum powder? The scope of application of the powder is extensive, so it is in demand and is quite famous. However, not all products on the market are of high quality. If you need an inexpensive but good aluminum powder, you can buy it in kilograms through the online store of chemistry and laboratory equipment Labmarketru. The products of this company comply with GOSTs, which is the main confirmation of quality. More about the features and production of highly dispersed aluminum powder.
Product brief description
Aluminum powder is a crushed metal that looks like particles of a gray-silver hue. The saturation of the flakes depends on the composition of the product, or rather, on the amount of impurities. A distinct silver color indicates that the powder is not rich in the following components:
- Moisture, etc.
Despite its loose consistency, the aluminum compound is greasy to the touch. Visually, it looks like an ordinary powder, but under a microscope it is clear that it does not consist of grains of sand, but of miniature scales. The thickness of these plates varies in the range of 0.25–1.0 µm. Each flake is covered with the thinnest layer of oxide and fat, which is not visually visible. Thanks to him, the powder is easily smeared, after which it is difficult to remove it from any surface, in particular, to rinse it off the skin.
The powder also contains lubricants. It is about such excipients:
- Stearic acid;
- Mineral oils, etc.
They are introduced during the main stage of the production of alumininium paste and powder Malaysia, when the main component is ground. What is the lubricant added for? To prevent oxidation processes. Fatty substances do not allow air to pass through, therefore, the product is of high quality and does not deteriorate even after the expiration date.
Key Features and Features
“Metallic” powder in a gray-silver shade is 82–92% aluminum. Other components were mentioned earlier. The covering properties of products of any brand are equal to 10 g / m 2, the density varies in the range of 0.15–0.3 g / cm 3. The amount of components of organic origin – 3-4%, no more. The powder is homogeneous in structure, visually all fractions are the same in size. The percentage of the remainder on the sieves can be zero or vary within the range of 0.08–0.3.
One of the most striking properties of aluminum powder is considered the tendency to “leafing”. This suggests that it does not remain in the middle or under the paint layer after applying the composition to a particular surface. The gray-silver particles are on top, forming a single whole, overlapping each other. For more articles like this one, click here.