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Water filtration

Water filtration

Silica gravels

Silica gravels

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

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Other silica products ...

Other silica products ...

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

Sodium water glass

Sodium water glass

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.

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Potassium water glass

Potassium water glass

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.

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Laboratory instruments

Laboratory instruments

MULTISERW-MOREK brand laboratory instruments are sought after for their tradition, quality and reliability. H-GLOST, a major commercial representative for the Czech Republic and Slovakia, provides comprehensive supplies of the entire product range. We are not the world’s best, which is why we provide you, our customers, with all warranty and post-warranty repairs directly at the manufacturer, MULTISERW-MOREK, which guarantees fully original parts as well as updates of the software used.

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.

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