Short answer:

Phoscrete is a Magnesium Phosphate Cement (MPC) concrete.  Excellent concrete repair materials, Phoscrete MPC concrete formulas bond strong and last long. Fast-setting Phoscrete MPC concrete is traffic ready as soon as 30 minutes from the final bucket mix. Phoscrete stops rust on contact and accepts expansion joint and deck sealants as soon as one hour after placement. Wow - all these features plus a ten -year documented history of successful installations, too!

Phoscrete is an excellent choice for full and partial depth concrete repairs all year long, even in sub-freezing temperatures. MPC concretes by Phoscrete are the go-to concrete repair material for cold weather concreting and for freezer floors.

If you want to get a little more technical…

The exothermic reaction between Phoscrete’s magnesium and phosphate components forms a magnesium-phosphate cement binder. Blended with graded aggregates and fibers, Phoscrete's MPC concrete formulas are packaged for use in horizontal, vertical, and overhead applications. When Phoscrete is installed to clean, sound concrete, chemical bonding assures coherence, and mechanical bonding assures adherence to the concrete substrate.

Both Cementitious and Polymeric Properties: Easy-to-use, rapid-setting, concrete-grey colored cementitious materials, Phoscrete is not brittle or prone to cracking. Phoscrete’s high early bond strength, flexural strength, and tensile strength make it an excellent choice for repairs more common to elastomeric materials (polymers), without the odor or mess.


Performance Characteristics

Rapid Return
To Service
Phoscrete attains high early compressive strength, allowing the repaired surface to open to traffic as fast as 30 minutes (depending on the formula and temperature). By accepting joint sealants and pavement coatings as fast as one hour following placement, Phoscrete allows complete installations to be completed in one traffic closure. Learn more…
No Cold Joints
No Shrinkage
No Cracking
Phoscrete achieves high early and ultimate bond strength to clean, sound, cured concrete, and to Phoscrete itself wet or cured. Responding to strains occurring by tensile deformation plus flexural strength, Phoscrete does not shrink or crack. Phoscrete is extremely durable in high stress environments. Learn more…
Stops Rust
on Contact
No Halo Effect
Phoscrete converts iron oxide (rust) to metal phosphate, stopping the corrosion reaction on reinforcing steel, and inhibiting further corrosion. Sandblasting of rebar is not required, simply remove loose scale with a wire brush. Phoscrete cures slightly acidic and does not push the corrosion reaction out to surrounding rebar. Learn more…
Easy Mixing
Easy Placement
Easy Cleanup
A pre-measured, two-component system insures accurate and consistent mixing from batch to batch. Self-consolidating with low slump and fast setting, Phoscrete is an excellent material for installation on vertical, horizontal, and overhead surfaces. Phoscrete uses standard concrete finishing tools, and everything cleans up with water.

and Chloride Resistant

Phoscrete repairs are highly resistant to spalling caused by freeze/thaw cycling and scaling from road salts. Learn more…
No Primers
No Curing
No Outgassing
Install Phoscrete onto clean, dry concrete surfaces. No waiting to install primers or saturate the surface prior to installation. With no requirement for curing compounds, and the ability to install sealants immediately without concern for offgassing, Phoscrete is often the lowest in-place cost concrete repair solution. Learn more…
All Season Use
Phoscrete formulas can be installed in sub-freezing environments using Fast-Set Admix. Working time can be extended using Slow-Set Admix. Phoscrete MPC formulas work well and set fast in temperatures ranging from -5°F to +105°F. Learn more…