Construction industry.

Components for waterproofing.

Buildings must be protected against penetration by moisture and damp. Construction joints, expansion joints, cracks and transitional areas represent a particular challenge for all subsequent sealing work. Jaeger has developed corresponding joint sealing membranes for all types of joints and areas of application. In different material thicknesses, widths, material compositions and expansion characteristics. For both negative and positive pressure.

Jaeger sealing membranes have been developed for use in combination with all common sealing systems – polyurethane sealing, epoxy resin systems, cement sealing compounds or bitumen coatings. High chemical resistance, extreme resistance to UV light and mechanical stress, and outstanding adhesion and welding characteristics – these are just some of the main properties of our products for sealing against moisture. All products are subject to a thorough internal and external test programme, and in some cases also to annual external audits. Safety and durability are the prime considerations in this case.



JST-O Monoflex

High-performance waterproof sealing tape for sealing outdoor building partition and structural joints exposed to permanent water pressure, for example. Installation with suitable adhesives/sealants on many different substrates in areas subject to particularly high loads.

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Application instructions

JST-O Flex

Transverse-elastic, longitudinally-stable non-woven with thermoplastic elastomer coating; strong and non-tearing. For waterproofing outdoor building partition and structural joints. Covered installation with suitable adhesives/sealants on many different substrates, i.e. no permanent exposure to UV radiation.

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We offer inside and outside sealing corners. The use of these prefabricated products represents essential savings in time on the building site.


We produce collars for sealing pipe penetrations and for all standard pipe diameters. The use of prefabricated parts guarantees particularly professional waterproofing and ensures feasible working methods on the building site.