Our products for the aerated concrete industry:
You can rely on our pastes
Aluminium pastes have been used in the construction materials industry for many decades as additives. The international market leader – GRIMM Metallpulver GmbH – offers a range of functional aluminium pastes for the manufacture of aerated concrete.
Our aluminium pastes guarantee uniform structures – deep into the pores
Aerated concrete is an autoclaved material with high porosity, which is manufactured using a small amount of aluminium. The alkaline mixture of sand, burnt lime, cement and water contains homogeneously mixed aluminium particles which cause the formation of small gas bubbles, which is one of the typical features of the aerated concrete.
Reduction and prevention of cavities
Uniform pore structure
Improved physical properties
EXPANDIT® aluminium pastes enable dust-free processing and are not considered a hazardous material. They make a significant contribution to safety. EXPANDIT® aluminium pastes are also wettable and therefore easy to mix.
The choice of the right product depends on the following:
- Systems engineering and characteristics
- Bulk density
- Properties of the raw materials
- Composition of the formulation
- Influencing factors in production
GRIMM Metallpulver GmbH offers all its customers technical assistance and helps with selecting a suitable product from our range for your production process.
Selected additives for the aerated concrete industry

Aluminium pastes
Bound in ethylene glycol alcohols or other solvents, our pastes guarantee safe transport as well as various benefits during processing.

Aluminium powders
Our aluminium powders are made from the finest sheets with a particle thickness of sometimes less than one µm and a diameter between 1 μm and 150 μm.
Are you interested in our functional powders and pastes?
The experts at GRIMM Metallpulver GmbH will gladly help you find the optimal additive for your application in the aerated concrete industry.



