Cemproof CEM805 Active

Cemproof CEM805 Active

CEM 805 Active is a one-component,polyurethane based, solvent-free, hydroswelling sealing agent for the sealing of construction joints and around pipe penetrations. CEM 805 “active” cures and swells in the presence of moisture. Curing time depends on temperature and humidity conditions.

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Field of Application

CEM 805 “active“ is specially designed for the following fields of application:

  • Sealing rough and smooth construction joints of insitu cast concrete
  • Sealing joints between pre-cast segments (e.g.manholes, box culverts, cable ducts and pipes)
  • Sealing around steel H-beams
  • Sealing between rough surfaces (e.g. slurry walls) and concrete slabs
  • Bonding of waterstop tapes and injection hoses
  • Sealing around bolt spacers and void formers
  • Solvent-free
  • CEM 805 “active“ can be applied to concrete, PVC, HDPE, steel, etc
  • The excellent filling and adhesion properties of CEM 805 “active” provide a first line filling of cracks and voids, even on lightly humid, smooth or roughsurfaces
  • In contact with water CEM 805 “active” will expand to  about 200 % of its original volume
  • CEM 805 “active“ is an extremely flexible system, which adapts to the irregular surface of the substrate
  • Easy application with standard caulking gun
  • CEM 805 “active“ is durable and will exceed the construction’s life
  • Good all-round chemical resistance
  • Can resist to petroleum products, mineral and vegetable oils and greases
  • CEM 805 “active“ is approved for contact withpotable water

ITEM

SPECIFICATION
Solids

100%

Uncured:

Consistency

gel/paste
Density (at 20 °C)

approx. 1,45 kg/dm³

Slump in vertical applications

< 5mm (average 3 mm)
Touch-dry (at 20 °C and 60 % rel. humidity)
12 h
Flash point
> 130° C

Cured (7 days at 20 °C and 10 mm thick):

Elongation at break

approx. 625 %

Tensile strength

approx. 2,2 N/mm²

Resistance to hydrostatic pressure

 

up to 150 m of water column

Swelling capacity in contact with water

approx. 200 %

 

 

 

 

 

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