Mill scale, is formed on the outer surfaces of plates, sheets or profiles when they are being produced by rolling hot iron or steel billets in rolling or steel mills.
It looks like a hard brittle sand and is mainly composed of iron oxides, mostly ferric, and is bluish black in color.
Being produced during the reheating, conditioning and hot rolling operation for the production of steel articles, the mill scale initially adheres to the steel surface and protects it from atmospheric corrosion, provided no break occurs in this coating.
From the chemical and physical analysis performed on the scrap, and according to the european environmental rules, the material has been classified as a special non dangerous waste, listed in green list
In particular the mill scale can be classified as follows:
Einecs (european commission no.): 266-007-8
Waste code: 10 02 10
Basel code: b 12 30
Hs code: 2619.00
1. Product Overview
Ground Calcium Carbonate (GCC) is a naturally occurring mineral obtained from high-purity
limestone or marble. It is mechanically ground into fine powder without changing its chemical
structure. GCC is widely used in various industrial applications due to its excellent physical and
chemical properties.
2. Chemical & Physical Properties
Chemical Formula: CaCO
Purity: Typically & 98%
Color: White to off-white
Particle Size: Available in different micron sizes (5 µm to 50 µm or more)
Specific Gravity: ~2.7 g/cm
Bulk Density: 0.8 - 1.2 g/cm (varies with fineness)
Moisture Content: 0.2%
pH: ~8-9
Oil Absorption: Low
3. Industrial Applications
Plastics & Polymers
Used as a filler to improve mechanical properties and reduce costs in PVC pipes, cables,
and plastic films.
Paints & Coatings
Enhances opacity, brightness, and weather resistance in paints, coatings, and adhesives.
Paper Industry
Used as a filler to improve paper brightness, smoothness, and printability.
Rubber Industry
Increases strength, durability, and elasticity in rubber products like tires, belts, and hoses.
Construction & Cement
Improves strength and workability in cement, concrete, and adhesives.
Ceramics & Glass
Acts as a fluxing agent to enhance durability and shine in ceramic and glass manufacturing.
Pharmaceuticals & Food (if food-grade GCC)
Used as a calcium supplement and anti-caking agent in tablets, toothpaste, and food
products.
4. Packaging & Storage
Packaging: 25 kg & 50 kg bags, jumbo bags (500-1000 kg), or customized packaging.
Storage: Store in a dry place away from moisture and direct sunlight.
Kaolin uses are multiple and diverse. Kaolin are used as functional filler, extender, ceramic raw material and pigment because of its whiteness and fine particle size. Kaolin also hold importance as raw material in refractory applications, concrete, rubber and fiber glass manufacturing. We, as a Kaolin Exporter welcome any size of international orders from Middle East and other countries.
Applications:
Paper:
Kaolin used as a coating pigment and as a filler to replace fiber. It possesses desirable optical properties.
Concrete:
Kaolin helps to improve strength and durability of concrete. When added to concrete mix, reacts with free lime released during cement hydration to produce additional cementitious material, resulting in an improved high performance concrete.
Plastics :
Kaolin is widely used as filler in the plastics industry because of its inert chemical nature and its unique size, shape and structure.
Agriculture :
It is used as a carrier and diluent in fertilizers, pesticides and related products. It is suitable as carrier because it aides the retention of the formulations on the plant.
Rubber :
It is commonly used as functional filler in rubber applications. While Kaolin improves overall performance for Rubber in general, different types of white pigment play specific roles in rubber application.
Paint :
Kaolin used as an extender in paints. It reduces the amount of expensive pigment such as Titanium Dioxide. It assists with desirable rheological properties that help maintain proper dispersion and provide bulk to the product.
Ceramic :
Kaolin improves whiteness and brightness of ceramic body. Good plasticity, good shrinkage, low water absorption and casting rate are also very important properties of kaolin.
Supplier: Gypsum rocks, gypsum powder, rock salt (industrial salt and deicing salt), food grade salt, sodium bicarbonate, limestone, white limestone (marble chips), sulphur (granular, lumps)
Applications:
Use to manufacture gypsum panel or building plasters
Use to make gypsum mold or statutes
As grout of marble, clay and ceiling tiles
As a color additive
Act as additive to other products
Types:
1. Super Micronized Gypsum Powder
2. Facade Rendering Gypsum
Packaging:
25 kg per bag
30 kg per bag
50 kg per bag
1 ton jumbo bag
1.5 tons jumbo bag
2 tons jumbo bag
