Since the early 70s injection hose systems have been used alternatively or in addition to joint profiles and metal water stops. It is an injectable joint filler in tube or channel form. Subsequent leaks can be sealed by injecting polyurethane resin, acrylate resin, cement suspension or cement paste.

DESOI Injection hose system
Filling and venting system DESOI


  • Easy installation and flexible adaptation to the joint system
  • Installation directly on the construction joint
  • Sealing additional to joint profiles or metal water stops
  • Possibility of sealing construction joints in concrete and reinforced concrete structures
  • Reasonable, technical method for preventive as well as additional sealing
  • Injection hose systems can also be installed wherever the installation of joint profiles or metal water stops is extremely complex for structural reasons
  • The suitability of injection hose systems is documented by national technical approval

Examples of application

According to Building regulation list A, part 2, paragraph 1.4. injection hose systems are part of joint sealing systems e.g. as in the ground water area (white tank)

Making a waterproof construction joint in concrete structures by well-planned injection

Water and wastewater treatment plants, underground car parks, tunnels


DESOI Injection hose
  • The injection hose shall be fixed tightly to the hardened concrete building component element by continuous anchoring fixing so that it cannot float on fresh concrete
  • Normally, the injection hose is fixed with special fastening clamps spaced about 15 cm, however, the spacing has to be adjusted to the conditions on site.
  • In the area of ​​crossing hoses lay them so that they cannot block each other
  • Length of injection hose: about 8 - 10 m
  • The spacing of the injection hose to the outside of wall should be ⅓ to ½ of the wall thickness
  • In areas where the hoses meet they shall overlap each other by 15 cm and lie parallel spaced about 3 - 5 cm
  • Indicate the location of the injection hoses in the drawings
  • Opening pressure - The injection material flows out of the injection hose at low pressure between 0,5 to about 5 bar
Injection hose system

Injection hose system

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