Kaolin (China Clay)

Specifications

Products	Hydrous, Water Washed, Classified
Use	Industrial Use
Color	White to Super White
Form	Lumps, Powder, Noodles
Packing Type	Plastic Bags / Jumbo Bags
Packing Size	25kgs/50kgs/ 1000kgs

 

Kaolin is a hydrated aluminum silicate crystalline mineral formed over many millions of years by the hydrothermal decomposition of granite rocks. It is a white soft mineral composed primarily of Kaolinite mineral having a chemical composition of Al₂O₃.2SiO₂.2H₂O with minor amounts of quartz, feldspar, and sheet silicate minerals (mica, illite, smectite).

Hard and soft clays are characterized by their fine particle size, platy or lamellar particle shape, and chemically inertness. Clays having fine particle sizes are described as hard clay. Phyllosilicates being a subgroup of silicate minerals that has typically less than 2µm in diameter. The combination of platy shape and fine particle size results in improved processibility, improved reinforcement, tensile strength, abrasion, and tear strength.

After mining the above mineral ore is dressed, dried, pulverized, air-floated, water-washed (levitated), calcined, and surface modified. As per the application, the grades are selected by the end-user.

MYBIA MANIFOLD PRIVATE LIMITED ensures consistent quality, control of top-cut and average particle size, and freedom from impurities at pocket-friendly costs.

Highlighted Features of our Kaolin Series:

• Enamel Holding
• Good Suspension Products
• Viscosity Enhancing
• Excellent Opacity
• Good Hiding Power
• Anti-Caking Agents
• Improve Ink Receptivity
• High luster, opacity, gloss
• High mechanical strength
• Dimensionally stable
• Improved electrical properties
• High extrusion properties
• Better Production Flow
• Better Tensile Strength
• Low shrink-swell capacity
• Low cation exchange capacity

Mybia Manifold Private Limited offers a wide range of Kaolin and specialty Kaolin suited best in varied industries.

We focus on quality and consistency and serve our esteemed clients at very competitive prices in the global market.

Industries We Serve:

1. RUBBER HOSES, EVA FOOTWEAR & ALLIED APPLICATION:

Clay is a non-black mineral filler used in rubber and EVA Polymers having the largest volume after Carbon Black filler. It owes this opportunity to a combination of low cost, low to moderate reinforcement, and processing benefits. Due to its low cost, the economy in compound cost is attained. The price of polymer and other additive chemicals, fillers are rather high.

The clay ore is produced from various deposits of mines. Ore is dried, pulverized, and refined by either air-floatation or water washed to remove impurities and to produce clay in the desired particle size range. There are many types of clays but in Rubber it is termed as:

1) Soft Clays, or

2) Hard Clays- terms derived from relative rubber hardness produced.

Durometer hardness is the usual starting point for a guide in selecting clay loading. A rule of thumb in many elastomers is to use 5-6 phr of hard clay and 7-8 phr of soft clay for each point in hardness above the base hardness of the unfilled compound. When clay is used to replace other fillers, it is recommended that the replacement be based on equal volumes. Refinements in the formulation to accommodate processing and hardness can be made by a rubber technologist by the addition of process oil.

Thus, clays can be formulated to rather high loadings in most elastomers, with soft clays allowing somewhat higher loadings than hard clays. Process aids are frequently used to improve the dispersion and mechanical properties like tensile strength etc. The main factor to consider in adding clay to most formulations is its reduction of cure rate. Reduction in cure rate requires the addition of an activator. In certain cases, a combination of Carbon Black with Hard Clays increases mechanical properties like modulus and tensile strength while reducing compression set and maintaining lower compound cost.

Clay is used in almost all types of rubber products including automotive hose, flooring tile compounds, EVA FOOTWEAR. Since it remains inert it is naturally nonabrasive, and its neutral pH value shall have additional process advantages though few applications prefer acidic pH value and some alkaline pH value. MYBIA MANIFOLD PRIVATE LIMITED provides Clay in different pH values suitable to the user industry.

Today the principal non-black fillers are clays, Whiting and calcium carbonate, & Silicas. Clays are used to the greatest extend, followed by calcium carbonate and silica. There are three properties important for the users. These properties are particle size, specific gravity, and price. The specific gravity of a filler affects the molded product’s final weight, which may be important in few applications. MYBIA MANIFOLD provides LOW & UNIFORM PARTICLE SIZE products to the benefit of its application as Semi reinforcing filler. The reinforcement of rubber, dependent on particle size, also has a wide range. The term “reinforcement” applies to improvement in mechanical durability, usually related to tensile strength, tear strength, and abrasion resistance.

 

2. PAINT & INKS:

Clay has been used for painting application by the people of the ancient world as white, plate-shaped material because of its earthy nature, its fineness, its opacity, and its easy dispersibility in water.

Later, the refining process developed, and the quality is stabilized in terms of users’ friendly-ness. Basically, the refining process is similar as described in the earlier chapter of ‘Rubber’. By nature, Kaolin is soft, white, plastic clay mainly composed of fine-grained plate-like particles. Individual Kaolins vary in physical aspects, which in turn influence their end-use. Of particular commercial interest in the paint industry, the application is the degree of crystallinity that influences the brightness, whiteness, opacity, gloss, and viscosity.

In paint application, Kaolins are used in Hydrous and Calcined Forms. It can improve the optical, mechanical, and rheological properties of paint.

Hydrous Kaolins are used in water and solvent-based paints in distempers, interior and exterior paints, primers, and undercoats. Calcined Kaolins are widely used in satin and matt paints where they can deliver increased opacity, whiteness, and scrub resistance. Kaolin is particularly useful nowadays as a partial replacement for TiO2 pigment.

In practice it is found that there are no specified standard specifications of Kaolin published by big manufacturing plants, rather it is mentioned “to match standard” that is already in their use. The quality is determined by the degree of its brightness, Whiteness, Opacity, hiding power, gloss, water demand, oil absorption, particle size, specific gravity, and viscosity.

MYBIA MANIFOLD offers Hydrous Kaolin, which is pulverized grades, air-floated grades, and water-washed (Levigated) grades as well as Calcined kaolins.

When formulated in paint, fine Kaolin act as a functional extender of TiO2, reducing formulation cost and improving rheology. Some of our product grades do not offer so much potential to extend TiO2 but do enhance the dry film properties of primers and undercoats and some grades offer paint makers the possibility to extend TiO2 in solvent-based gloss paints processed using high-speed dissolvers rather than bead mills traditionally associated with this type of paint- cutting processing time and increasing efficiency.

Recent trends are using Hi-Brite Clays in manufacturing Semigloss, Full gloss of Oil-based Paints, Coatings and inks. It improves coverage area, scattering, flowability. Good quality kaolins keep the paint in suspension and its sediment resistance.

3. Ceramics:

China Clay is an essential constituent of Ceramics. It is used by almost all manufacturers worldwide in Electrical porcelain, Fine China & dinnerware, Floor and Wall tiles, Roof tiles, Pottery, Sanitary ware, Tableware, and other engineering products. The properties important for the use of China Clay in Ceramics are –Plastic Properties, drying properties, Firing properties, Firing Color, Electrical properties such as conductivity, dielectric content, etc.

Our clay permits the product to be easily deformed under stress without rupturing and retains the shape produced when stress is removed. Due to low water of plasticity, it does not require intense forming pressure to withstand handling/drying, and the Green Strength is better. The Firing properties are excellent to produce a super white finish. The processed clay is free from grits and all metallic impurities. The particle size is very low and even keeps drying shrinkage in desired parameters.

Our Clay is most porous, and platelets are very fine and smooth, closely squeezes together to let the water of plasticity evaporate easily without any cracks.

Good Vitrification property is the important constituent of our Clay. Vitrification is the process of becoming glasslike. Although Clay products never become vitrified or glasslike, it is necessary that the Clay become HARD (almost vitrified) at a reasonable temperature. Any substance will melt at some temperature. Our clay holds better its shape and does not sag or slump in the primary melting stage which sets it apart from other clays.

4. PLASTICS:

Kaolin provides smooth surfaces, dimensional stability, and resistance to chemical attack. It also conceals fiber reinforcement patterns and reduces shrinkage and cracking during polymer compounding and shape forming.

When it is surface modified it is used as a functional filler and rheological modifier to improve mechanical, electrical, and thermal properties. Kaolin is used in PVC wire & cables, High Voltage insulating compounds, engineering plastics, specialty films, automotive parts based on engineering thermoplastics.

Ultrafine and best purity products are recommended in plastics.

Our value-added products have been developed to offer user-friendly applications that shall be made available on request.

Clay is used in almost all types of rubber products including automotive hose, flooring tile compounds, EVA FOOTWEAR. Since it remains inert it is naturally nonabrasive, and its neutral pH value shall have additional process advantages though few applications prefer acidic pH value and some alkaline ph value. MYBIA MANIFOLD provides Clay in different pH values suitable to the user industry.

5. PHARMA & ANIMAL FEED AS DILUENT:

KAOLIN is a processed and refined natural mineral product being used in certain applications by pharma industries.

There are two grades of KAOLIN: –

a) HEAVY KAOLIN:

It is purified, natural, hydrated aluminum silicate of variable composition
Category: Pharmaceutical aid
Description: Fine, White, soft powder odorless
Solubility: Practically insoluble in water and in organic solvents. It does not dissolve in mineral acids and in solutions of alkali hydroxides.

b) LIGHT KAOLIN:

It is a native hydrated aluminum silicate, freed from most of its impurities by elutriation and dried. It may contain a suitable dispersing agent.
Category: Antidiarrheal
Description: Light, White powder-free from gritty particles; odorless; almost tasteless; unctuous to the touch.
Solubility: Practically insoluble in water and in mineral acids.

Typical benefits and application of KAOLIN in pharma are described as below:

• Excellent adsorbent. It can adsorb not only lipids and proteins but also viruses and bacteria.
• Good Binding properties. It acts as a chain for binding many medicines.
• Fine Kaolin contents with suitable chemical composition.
• Ability to act as diluents in tablets and capsule formulations.
• Acts as a good suspending vehicle.
• It also acts as an activator when used with Calcite (Calcium Carbonate).
• It is also suitable for veterinary medicines/products and has got good demand in bulk quantities.

6. Other Industries:

We also provide grades suitable for other industries on request like:

• Fiberglass
• Refractories
• Pesticides
• Paper
• Fertilizers

Mybia Manifold don’t work to just sell, it works to provide real solutions to its esteemed clients and focus on long term business relations by offering at a pocket-friendly price.

Reach out today to get a suitable grade for your industry.