PetraTec surfacing system

PetraSmooth

A smooth, refined cementitious finish.

PetraSmooth is a smooth cementitious overlay used to create a polished-concrete appearance over suitable existing slabs. The overlay becomes the finished surface, allowing the design to be developed independently of the color and appearance of the original concrete. Existing coatings, repairs, moisture conditions, surface profile, flatness, and transitions must be evaluated before installation. Material placement, trowel technique, color selection, and final protection influence the uniformity and tonal movement of the floor. CST supports customer projects with system guidance, sample or mockup work, installation planning, and ongoing technical support.

Discuss this system
Exploded PetraSmooth system assembly showing the concrete slab, CST A-1550 primer, PT144 base coat, PT120 smooth texture coat and two clear sealer coats
PetraSmooth system assembly from the substrate through the two clear sealer coats.

System profile

Technology
PetraTec
Appearance
Smooth
Application
Professional installation
Selection
Project-specific technical review

Where to consider it

Match the surface to the job.

  • Interior floors
  • Contemporary interiors
  • Concrete renovation

Substrate

Suitable concrete, subject to project assessment. Existing condition and compatibility must be assessed before selection.

System character

  • Refined cementitious appearance
  • Contemporary finish direction
  • Renovation of suitable concrete

Use conditions, thickness, coverage, preparation, cure and performance requirements must be confirmed in current CST documentation for the selected assembly.

System assembly

Confirm the layers for your project.

Do not select individual layers in isolation. CST confirms the preparation, component compatibility, finish and installation sequence for the job.

01

Substrate assessment

Confirm with CST

02

Preparation plan

Confirm with CST

03

Surfacing components

Confirm with CST

04

Finish & maintenance

Confirm with CST

Planning sequence only. A verified layer schedule and application guide must be obtained before installation.

System components

Products that may be used.

These are potential system components, not a complete installation bill of materials. CST confirms the final assembly, versions and quantities for each project.

Appearance & color

Smooth finish.

Discuss finish options and a project sample with CST. Approved online swatches are not yet available.

Technical documents

Approved downloads for PetraSmooth have not yet been added to this library. Request the current TDS, SDS and system guide before specification or installation.

Request current documents

Related technologies

Other directions to explore.

The next step

Plan the system. Prepare the installer.

Connect system selection with training and project-specific technical support.

Talk to technical support