MasterRoc MP 350 – One component water sealing injection resin for cracks and fissures in concrete and rock

How does MasterRoc MP 350 work?

MasterRoc MP 350 is a single component hydrophilic polyurethane based injection resin which forms a permanent, impermeable and flexible sealing material on contact with water.

Recommended for:

  • Permanent crack sealing of underground structures
  • Sealing of minor water ingress
  • Upgrading of temporary water sealing to permanent solution
  • For use with MasterSeal 909 injection hoses

What are the unique features of MasterRoc MP 350?

MasterRoc MP 350 can be injected as a simple resin, but also has a faster reaction option for flowing water by adding a small quantity of the MasterRoc MP 350 Accelerator.

What are the benefits of MasterRoc MP 350?

  • Permanent sealing effect
  • Forms a closed cellular material giving an impermeable, high resilience seal against water ingress
  • Reacts in moist and wet surroundings
  • Good bonding to wet surfaces
  • Foams upon contact with water
  • Penetration of fissures smaller than 0.05 mm


MasterRoc MP 350: Safety Data Sheet

pdf (150.21 Kb)

MasterRoc MP 350: Technical Data Sheet

pdf (32.79 Kb)