Lightweight and specialty fillers

Hollow ceramic spheres

We offer a complete range of hollow ceramic spheres, both grey and off-white. 

Hollow ceramic spheres ( cenospheres) are characterized by very high thermal and mechanical stability.

Features and benefits of the cenospheres are:

• reduced density / reduced weight of final products
• non-combustible
• chemically inert
• temperature resistant up to 1200°C
• excellent acoustic- and thermal insulation
• improved flow- and working properties
• improved mechanical properties including impact strength and dimensional stability
• improved thermal-shock resistance
• no water absorption under pressure

Hollow ceramic spheres (Cenospheres)

Other hollow ceramic spheres we provide are cenospheres in grey and off-white. 

Cenospheres are high-quality ceramic hollow microspheres characterized by a high
degree of fineness and highest mechanical resistance. Due to the fine particle size, Cenospheres are predestined for use in coatings as insulating lightweight filler.

Features and benefits are:

• excellent acoustic- and thermal insulation
• reduced density / reduced weight of final products
• improved flow- and working properties
• improved mechanical properties including impact strength and dimensional stability
• improved thermal-shock resistance
• no water absorption under pressure
• non-combustible
• chemically inert
• temperature resistant up to 1200-1600°C

Glass bubbles (Omega Bubbles)

In the category Glass Bubbles we offer you Omega Bubbles, which are made from recycled glass.

Omega-Bubbles are high-quality multi-cellular hollow glass spheres, serving as functional lightweight fillers. Omega-Bubbles are characterized by excellent chemical, mechanical, and thermal properties. The multi cellular high-stability structure is generated in a unique process. The use of high-quality raw materials ensures the pure white colour of Omega-Bubbles.

Features and benefits are:

• non-combustible
• excellent thermal insulation properties due to low thermal conductivity
• temperature stability up to 900°C
• highest hydrolytic stability
• excellent acoustic absorption
• low electric conductivity
• coarse texturing for excellent adhesion
• environmental-friendly manufacturing process
• 100% recyclable
• reduced density / reduced weight of final products
• improved flow- and working properties

Wollastonite

Wollastonite is a rod shaped calcium metasilicate named after the physicist Wollaston. It's a natural occurring white acicular mineral. It is inert, has low loss on ignition, no water solubility and a low efficient of linear thermal expansion.

Wollastonite is available in aspect-ratio of 3:2 to 20:1, from 8 μm to 1000 μm. It’s also available modified with various coatings as per customer needs and are sold as Fillex.

The product is fire resistant and extremely alkali-resistant.

Features and benefits of Wollastonite are:

• (micro-)reinforced properties
• resistant to high temperatures
• improvement of adhesive strength
• anticorrosive agent due to alkaline potential
• odourless
• 100% mineral origin