MasterRoc MP 303 CE - Low viscosity, fast reacting acrylic resin for permanant water sealing

How does MasterRoc MP 303 CE work?

MasterRoc MP 303 CE is a highly reactive two-component acrylic sealing resin with a low viscosity for good penetration. The product cures quickly, forming a highly flexible hydrogel with extraordinary swelling/re-swelling properties.

What are the fields of application?

MasterRoc MP 303 CE resin has been designed for usage as a permanent water sealing and layer curtaining resin. It is used for low pressure injection in concrete and masonry.

Upon curing, MasterRoc MP 303 CE resin forms a highly flexible compact resin.

Recommended for use in:

  • Stopping of minor water infiltration
  • Curtain injection
  • Repair of cracks and fissures in concrete
  • Permanent sealing of tunnel linings, shafts and masonry

What are the features and benefits of MasterRoc MP 303 CE?

  • Very low viscosity. Low viscosity allows deep penetration into very fine cracks or fissures
  • Controlled gel time between 14 seconds and 3 minutes at 20oC
  • Workable between 5oC and 40oC
  • Good bond strength to fractured rock and concrete, even under wet conditions
  • Excellent swelling and re-swelling behavior (while maintaining self-healing properties)
  • Environmentally preferable: Harmless in contact with groundwater, and no emission of potentially harmfully substances
  • The cured resin is resistant to acidic and alkaline solutions as well as many other solvents


MasterRoc MP303 CE: Technical Data Sheet

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