​​MasterRoc MP 304

Low viscosity, fast-reacting and highly flexible acrylic resin with adjustable reaction speed for permanent water sealing, joint repair and layer curtaining of concrete and masonry.

How does MasterRoc MP 304 work?

MasterRoc MP 304 product is a highly reactive two-component acrylic sealing resin with a low viscosity for good penetration. The product cure quickly, forming a highly flexible hydrogel with excellent swelling/re-swelling properties. Because of its excellent elongation and flexibility, MasterRoc MP 304 product is able to compensate for minor movement of cracks. MasterRoc MP 304 product retains its excellent swelling property in the presence of water, even after dry periods.

Recommended uses:

• Concrete repair
• Joint repair
• Curtain injection
• Permanent water sealing of tunnel and shaft concrete linings and masonry
• Injection into damp areas or areas with standing water
• Stopping of minor water seepage through cracks

What are the unique features of MasterRoc MP 304?

• Swells up to 100% of its initial volume
• Re-swells upon exposure to moisture after dry periods
• Highly flexible compact resin
• Excellent adhesive properties, even on damp or wet surfaces
• Resistant to acidic and alkaline solutions, as well as many other solvents
• Outstanding bonding to fractured rock and concrete, even under wet conditions
• Very low viscosity (close to that of water)
• Controllable gel time (between 15 seconds and 3.5 minutes at 68 °F (20 °C))
• Environmentally preferable 

What are the benefits of MasterRoc MP 304?

• Swelling-fitted filling of cracks and fissures
• Can accommodate structural and ground movements
• Self heals even after dry periods
• Very low viscosity helps in deep penetration of the product, even at low pressure, into
  very fine cracks or fissures and long flow paths
• Harmless when in contact with groundwater, with no emission of dangerous substances