MasterFlow 555: Fluid, non-shrink mineral-aggregate grout

How does MasterFlow 555 work?

MasterFlow 555 is a fluid, non-shrink mineral-aggregate grout. It is ideally suited for grouting machines or plates requiring optimum load-bearing support.

Recommended uses:

  • Interior and exterior
  • General construction applications
  • Where ease of placement of a fluid grout is desired
  • Where high one-day and later-age compressive strengths are desired
  • Machinery and equipment: base plates and soleplates
  • Anchor bolts, reinforcing bars, and dowel rods
  • Bedding grout for precast panels
  • Backfilling, underpinning foundations, and pressure grouting of slabs needing alignment
  • Repairing concrete, including grouting voids and rock pockets

What are the unique features of MasterFlow 555?

  • Meets ASTM C 1107 requirements at a fluid consistency (20–30 second flow)
  • Wide application temperature range of 50 to 85° F (10 to 29° C)
  • Can be mixed at a wide range of consistencies

What are the benefits of MasterFlow 555?

  • Hardens free of bleeding when properly placed and yields a high effective bearing area for proper support and load transfer
  • No accelerators, including chlorides or other similar salts, will not contribute to corrosion of reinforcing steel

US / Canada Product Information

Data Guide

LEED Letter

Certification Letter

Direct contact

Master Builders Solutions Technical Support

Construction Systems


Safety Data Sheet (SDS)

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Product Certifications

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Related Literature

Certification Letter

pdf (77.19 Kb)

Data Guide

pdf (106.59 Kb)

Data Guide (French)

pdf (112.68 Kb)

LEED Letter

pdf (92.20 Kb)