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Water-swelling rubber (hydrophilic rubber) is used for sealing of construction joints against pressurized water in reinforced concrete structures. HYDROTITE®, HYDROSEAL and AQUA TACKSEAL® are hydrophilic rubber profiles which are used widely as sealing coampounds in structural, civil, construction engineering and tunnel construction. The various hydrophilic rubber profiles stand out especially due to high chemical resistance against acids, alkalis, fuels, mineral oils, organic solvents etc. in addition to its extremely good mechanical properties such as high elasticity and high tear strength. They only differ in the raw material base and the maximum swelling rate.

Water-swelling rubber based on polychloroprene

Water-swelling rubber based on polychloroprene and EPDM rubber

Water-swelling rubber based on polyurethane

Water-swelling rubber based on of semi-vulcanised butyl rubber

One component, hydrophilic sealing compound for bonding of hydrophilic rubber.

Neoprene adhesive.

Mastic adhesive and sealing compound for gluing on moist surfaces and even under water.

For cleaning substrates and for bonding dusts and other contamination.

For connection and dilatation joints inside and outside and for permanently elastic sealing.

For priming heavily absorbent surfaces such as weathered concrete, brickwork, aerated concrete, eternit, natural stone, etc.

Installation is made in the centre of the reinforcement. Depending on the surface condition, fixing is made by adhering with HF-KLEBER, FIX-O-FLEX or QUELLFLEX®. The sealing of pipe breakthroughs is possible by using HYDROTITE® circular profiles.

The sealing of diafragma joints is possible by using HYDROTITE® circular profiles. Fitting is carried out by knocking the profile in with a pneumatic hammer. Plugging will be made by sealing with FIX-O-FLEX.

In corner areas, the hydrophilic rubber profiles are butt-glued at an angle of 90°. The butt area must be secured by QUELLFLEX®.

Connection of profile endings is done by adhesion of parallel bands by means of QUELLFLEX®.



The main use of AQUA TACKSEAL® is the sealing of shaft rings against in-situ groundwater. Shaft rings can be sealed using both sockets and rebates. AQUA TACKSEAL® functions on one hand like conventional sliding ring seals through compression, and on the other hand creates additional sealing through adhesion and expansion pressure.

Assimilates automatically to the shape of construction. Adhering on concrete, metal, glass and synthetic materials.

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