De Neef®

DE NEEF ® offers comprehensive solutions for soil stabilization, leakage sealing, and water control in underground construction - everywhere there is constant moisture or the risk of leakage under pressure

Active water leakage during construction projects

Leaks that slow down work on the construction site threaten the future of the construction or hinder the full use of the building. Injection work using de neef® will help quickly take control of emergency water inflow during construction, ensuring the possibility of continuing soil development and construction work.

Intense leaks in underground structures and construction designs

Water ingress in tunnels

Hairline cracks in concrete

Cracks and deformation joints in underground structures

DE NEEF ® offers waterproofing injection solutions that stop leaks under any circumstances and in any application – foundations, infrastructure, etc.

The DE NEEF ® range covers the entire spectrum of work — from sealing joints (the INJECTO® system) and stopping active flows to soil strengthening and curtain injection. There is a proven material for each type of leakage.

The product range is mainly based on one-component hydrophobic polyurethanes with closed cells, which are strong and durable. Therefore, leaks that have been stopped once will remain stopped forever.

Concrete or masonry — regardless of the type of structure, DE NEEF ® can eliminate leaks. From laying the foundation to completing the work, DE NEEF ® products can be used for injections into the soil, control, and restoration of water resources. DE NEEF ® solutions will be effective during earthworks or tunnel drilling, as well as at every stage of underground construction.

DE NEEF ® products can be useful for:

Owners who need to repair and maintain buildings and infrastructure projects.

Contractors who need to strengthen deep foundations during earthworks.

Installers and leak repair specialists tasked with specialized leak repairs.

In every case, there is a DE NEEF ® solution that best fits the task at hand, including deep foundations, underground spaces, tunnels, mass rapid transit infrastructure, and sewer repairs.

DE NEEF® products have several levels of certification, including CE certification for use in the European Union, as well as suitability certificates for drinking water from around the world.

Product Advantages

Advantage 1

Stop water under pressure, even when wet. De Neef® polyurethane resins react with water right in the crack, foaming and forming a dense elastic barrier. There is no need to dry the structure — on the contrary, moisture triggers the reaction

Advantage 2

Resistance and durability. In the hardened state, the materials are insoluble in water and petroleum products — an important property for underground structures, tanks, and facilities in complex chemical environments

Advantage 3

Ease of use. Only one injection is needed. No double drilling and complex mixing required

Advantage 4

Fast action. Resins react quickly and stop even pressure leaks, allowing a return to core work without long downtimes

Advantage 5

Penetrate where nothing else can. The Gelacryl Superflex acrylate gel has an extremely low viscosity and fills cracks from 0.1 mm, pores, capillaries, and cavities ("bee eyes") in concrete. This allows sealing even hairline cracks and performing curtain injection into the soil behind the wall

Advantage 6

Remain elastic. After polymerization, the resins retain joint mobility: the elongation of the Superflex gel exceeds 300%, so the sealing withstands seasonal movements of the structure without cracking

Documents

DOCUMENT NAME	Type	Format
DE NEEF ® HA Flex LV AF	Технічний паспорт	PDFDownload
DE NEEF® CUT PURe	Технічний паспорт	PDFDownload
DE NEEF® AC-400	Технічний паспорт	PDFDownload
DE NEEF® Denepox I-40	Технічний паспорт	PDFDownload
DE NEEF® Flex SLV PURe	Технічний паспорт	PDFDownload
DE NEEF® Gelacryl Superflex AR	Технічний паспорт	PDFDownload
DE NEEF® HA SAFEFOAM NF	Технічний паспорт	PDFDownload
DE NEEF® HA SOIL AF	Технічний паспорт	PDFDownload
DE NEEF® Pipe Plug	Технічний паспорт	PDFDownload
DE NEEF® SWELLSEAL® JOINT	Технічний паспорт	PDFDownload
DE NEEF® Washing Agent	Технічний паспорт	PDFDownload
ELASTOPACK 201	Технічний паспорт	PDFDownload
HA CUT AF	Технічний паспорт	PDFDownload
HA CUT TM Cat F_XF_SXF AF	Технічний паспорт	PDFDownload
TYTRO SI 550	Технічний паспорт	PDFDownload
TYTRO SI 660	Технічний паспорт	PDFDownload

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