PetraTec surfacing system

PetraX

Exposed aggregate, designed into the surface.

PetraX is a wet-on-wet exposed-aggregate system for decorative concrete restoration. PT380 is the white cementitious base; a selected integral color and aggregate pack are incorporated to establish the specified color and exposed-aggregate profile. The existing concrete, repair conditions, elevations, transitions, drainage, and surface preparation must be reviewed before placement. The integral color, aggregate type and gradation, distribution, exposure depth, timing, and final protection control the appearance of the completed work. CST supports customer projects with system guidance, sample or mockup work, installation planning, and ongoing technical support.

Discuss this system
Close-up of a blue PetraX exposed-aggregate finish
Blue PetraX exposed-aggregate finish. Photo supplied by CST.

System profile

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

Where to consider it

Match the surface to the job.

  • Decorative architectural concrete
  • Concrete restoration

Substrate

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

System character

  • Exposed-aggregate visual character
  • Decorative aggregate at the surface
  • Project-specific placement planning

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.

PetraX white base

Digital visualization of PT380 white-base bag with illustrative white, blue, green, red and yellow color sample piles
PT380 white base · color samples shown for illustration; integral color and aggregate packs selected separately

Digital packaging concept for product presentation. Verify product identification and handling information on the physical package.

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

Aggregate finish.

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

Technical documents

Approved downloads for PetraX 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