Water filtration

The high purity of Grudzeń Las silica gravels makes them ideal for use in water treatment - both for drinking and industrial purposes, as well as in the wastewater treatment process. Thanks to its high hardness, the gravel is used for blasting of both metal structures and construction components. Silica gravels are the basic raw material in the construction industry and are used for the brick production, concrete masonry units and mortar, plaster, levelling and jointing compounds.

Sodium water glass from the chemical plant Rudniki is an aqueous solution of sodium silicate that is made of high quality Grudzeń Las silica sand and alkaline fluxes.
Water glass is characterized by a modulus, which is the molar ratio of SiO₂ / Na₂O ranging from 1.6 to 3.5.

It is used as a binder in the sand mould production in foundries, as an adhesive in the paper industry or in the waste water treatment to remove heavy metals. It can be used in the construction industry as well. Water glass is used here as an admixture to concrete which shortens its setting time and also does not let in water.

Potassium water glass from the chemical plant Rudniki is an aqueous solution of potassium silicate that is produced from high quality Grudzeń Las silica sand and alkaline fluxes. This water glass is characterized by the modulus, which is the molar ratio of SiO₂ / K₂O ranging from 2.6 to 3.2.

It is used for wood, stone and masonry impregnation or for the production of paints and sealants in the construction industry. Potassium silicates also have a positive effect on plant physiology. They strengthen the cell walls and create a protective barrier against germs.

Laboratory instruments from the MULTISERW-MOREK company are sought after for their tradition, quality and reliability. The H-GLOST company, a prominent sales representative for the Czech Republic and Slovakia, provides complete supplies of the entire range of products. We are not the best in the world, which is why we provide you, our customers, with all warranty and post-warranty repairs directly in the MULTISERW-MOREK company. This guarantees our customers that all spare parts are original and that the software used is updated. 

Our laboratories at Grudzeń Las sand plants and the H-GLOST laboratory have these products installed and we use them to our full satisfaction. Therefore, we only offer such products of which we are convinced, based on our experience, that are of high quality.

In cooperation with Grudzeń Las sand plants, we can develop products to match specific requirements of our customers.