ADEKA ULTRA SEAL ® is an innovative "Double-Locking" hydrophillic rubber waterstop. Adeka stops water by compression of the rubber and by hydrophillic expansion pressure when the seal is exposed to water. Adeka has been a leading hydrophillic rubber waterstop since 1977.

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Typical Applications of Adeka Ultra Seal

  • Below Grade Joints
  • Piping Penetrations
  • Pre-Case Segments
  • Isolation Joints
  • Expansion Joints
  • Utility Vaults
  • Manholes
  • Sheet Pile Interlocks
  • Tunnel Segments
  • H. Piles
  • Crack Repair
  • WWTP
  • WTP
  • Water Tanks
  • Cooling Towers
  • Dams
  • Reservoirs
  • Containment Areas
  • and much more

Adeka MC2010MN


Hydrophillic strip with embedded stainless steel net. MC-2010MN cross section is 20mm X 10mm, (3/4" X 3/8"). MC-2010M cross section is 20mm X 5mm, (3/4" X 1/4"). Replaces convential PVC in non-moving joints. Will withstand 150 foot hydrostatic head pressure. NSF certified for potable water.

Adeka MC2005T_100


Hydrophillic strip with adhesive back. Cross section is 20mm X10mm (3/4" X 1/4"). Typically used for sealing piping penetrations cast-in-place through walls/slabs or through block outs in existing structures. Excellent for stopping water intrusionalong cast-in-place H-beams.

Adeka KM3030M


Hydrophillic strip with embedded stainless steel net. Cross section is 30mm X 30mm, (1 1/8" X 1 1/8"). Typically used in 1/2" expansion joints where expansion does not exceed 1/2". Excellent for shear movement and isolation joints.



Hydrophillic string (rope). Cross section varies from 4mm-24mm (approximately 3/16" ~ 1"). Usedd to waterproof sheet piles and cracks in the presence of running water. String should be 1.2 times the width of the gap being filled.

Adeka KBA 1510FP


Hydrophillic strip. Cross section is 15mm X 10mm, (5/8" X 3/8"). Typically used in precast, non-moving joint where minimal concrete coverage is available (greater than 1"), and concrete containment curbs. Will withstand up to 25 foot hydrostatic head.

Adeka P201


Hydrophillic paste in 11 ounce cartridge or 3.17 gallon pails. One of the most versatile Adeka products. Used in pre-cast segments, piping penetrations, sheet pile interlocks, in combination with other Adeka strip products on rough concrete, crack, joint repair and many other applications..

Adeka A30


Two component hydrophillic liquid in 4 gallon sets. Typically used to seal sheet pile interlocks prior to driving..

Adeka Ultra C Ring


The Ultra C Ring is a clip on hydrophillic waterstop attachment for the form tie. The Ultra C Ring expands when it comes in contact with dampness and therefore seals off water entirely. The innovative feature of the Ultra C Ring is the fact that it can be clipped on after the form tie is completely installed or used to repair a problem.

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