We are proud to offer two distinct grades of high-purity, high-whiteness, flash-calcined and highly reactive metakaolin. The two grades differ in specific particle size ranges for particular use in different fields and applications.

K40 High Reactive Metakaolin:

Metakaolin K40 is a medium-fine, flash-calcined metakaolin with a high pozzolanic reactivity. It is commonly used in Portland cement blends and cement-based plasters, mortars and concrete. It has also been successfully used and tested as a pozzolanic ingredient in geoploymer formulations. The pozzolanic reactivity is defined through the metakaolin’s ability to react with free lime as the by-product of Portland cement hydration. Addition of K40 metakaolin has been shown to improve strength, durability, density and resistance to chemical attack and reduce alkali-silica reactions and efflorescence in the finished products. 

Metakaolin content > 95%
Whiteness: 90%
D50 particle size = 19µm
Moisture < 1%
Trace quartz content <4%

K10 High Reactive Metakaolin:

Metakaolin K10 is a super-fine, flash-calcined metakaolin with a high pozzolanic reactivity for use in various applications requiring very fine particle sizes. The pozzolanic reactivity is defined through the metakaolin’s ability to react with free lime as the by-product of Portland cement hydration. Addition of K10 metakaolin has been shown to improve a variety of physical and mechanical properties of the finished product.

Metakaolin K10 is also widely used in speciality coatings and as a reactive filler.

Metakaolin content > 95%
Whiteness: 90%
D50 particle size = 2.8µm
Moisture < 1%
Trace quartz content <2%