MasterRoc MP 355 1K
One component polyurethane injection foam to stop small to medium water ingress

How does MasterRoc MP 355 1K work?

MasterRoc MP 355 1K product is a solvent free, one component polyurethane resin which turns into a foam when it comes in contact with humidity or moisture.

Recommended uses:

  • To stop small to medium water ingress in underground structures.
  • Suitable for filling of voids containing water.

What are the unique features of MasterRoc MP 355 1K?

  • Gets activated in moist environment
  • Good bonding to wet surfaces
  • Modification of the foaming action can be achieved using an accelerator

What are the benefits of MasterRoc MP 355 1K?

  • Rapid reaction and excellent bonding feature make it more effective to stop water ingress.
  • Adjustable reaction time with the associated accelerator provides application flexibility.

US / Canada Product Information

Data Sheet

Data Sheet (French)

Direct contact

Master Builders Solutions Technical Support

Admixture Systems


Safety Data Sheet (SDS)

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Related Literature

Brochure - Underground Injection Materials

pdf (2.84 Mb)

MasterRoc MP 355 1K Data Sheet

pdf (72.95 Kb)

MasterRoc MP 355 1k Data Sheet (French)

pdf (78.39 Kb)

Underground Water Management Brochure

pdf (2.85 Mb)