High Performance Refractory Coatings with Aluminosilicate microspheres

High Performance Refractory Coatings with Aluminosilicate microspheres,
cenospheres, refractory coatings filler,
Cenospheres also called microspheres, they are inert,hollow spheres and light weight fillers. And They have low density, nonpoisonous，corrosion-resisting, thermal stable, high partial strength, good insulating, sound isolating, low water absorption and low thermal conductivity. So they are used to reduce weight and increase the strength.

Cenospheres are hollow ceramic microspheres found in fly ash, a natural byproduct of coal combustion during the generation of electric power. Small and hollow, microspheres are used as fillers or functional extenders in the manufacture of plastics, paints, resins; light weight aggregates for cement, ceramics and other construction products. Because Cenospheres often replace mined materials, they can significantly lower production costs. Simultaneously, cenosphere can benefit finished product properties by increasing durability and better sound proofing. Too, as material recycled from fly ash, cenosphere are environmentally friendly and help to preserve natural virgin fillers.

As a portion of the fly ash generated in coal combustion, cenosphere are recycled from the waste stream. They are made up of inert silica, iron and alumina. Cenospheres have a size range from 1 to 300 microns with an average compressive strength of 3000+ psi.. Colors range from white to dark gray. They are also referred to as microspheres, hollow spheres, hollow ceramic microspheres, micro balloons.
The spherical shape of cenosphere improves flow ability in most applications and provides a more even distribution of the filler material. The natural properties of cenosphere make it possible to use them either in dry or wet slurry form. Cenospheres are easy to handle and provide a low surface area-to-volume ratio. Due to their inert properties, they are not affected by solvents, water, acids, or alkalis.

Cenospheres are 75% lighter than other minerals currently used as a filler or extender.
Xingtai Kehui Trading Co., Ltd. is a comprehensive-company integrating production, sales, and procurement. The company and the factory are located in Xingtai City, Hebei Province, which has a long history and rich in minerals. Currently, the company’s products include fly ash, cenospheres, perlite, hollow glass microsphere,macro synthetic fiber etc., the application of the products is designed to refractory insulation materials, building materials, petroleum industry, insulation materials, coating industry, aerospace and space development, plastic industry, glass fiber reinforced plastic products and packaging materials.

With 28 years experience on producing refractories and thermal insulation materials, we insist on supplying high-preformanced refractories and quality thermal insulation materials,we also developed many others quality products like macro synthetic fiber,
water-reducing admixture, we are doing our best to satisfied different customer’s requirements.
We hope to continue to escort our customers with high-quality products and professional services! As long as the customer needs, we are here anytime!

Video:
These lightweight, hollow spheres, derived from fly ash, are proving to be a versatile solution to enhance thermal insulation and coating performance in extreme industrial environments.

Cenospheres (Aluminosilicate microspheres ) are hollow, lightweight microspheres composed primarily of silica and alumina, obtained as by-products from the burning of coal. Their unique composition and structure make them ideal for applications where both low-density and high-temperature resistance are crucial.

Benefits of Refractory Coatings:

Thermal Insulation: Cenospheres’ hollow nature acts as an effective thermal insulator, significantly reducing heat transfer in refractory coatings. This property enhances the coating’s ability to withstand extreme temperatures, ensuring prolonged durability in high-heat environments.

Reduced Density: The inclusion of cenospheres in refractory coatings results in reduced density, offering a lightweight alternative without compromising performance. This proves valuable in applications where weight reduction is a critical factor.

We are a manufacturer of cenospheres with over 40 years of experience, there are a broad size of cenospheres that can be supplied, please contact our specialist for more support.