Precast
Graphite Polystyrene (GPS) is an advanced foam material ideal for precast and cast-in-place concrete applications where high thermal resistance and compressive strength are required. Lighter than traditional materials and offering a higher R-value per inch, GPS helps simplify concrete forming, improve thermal performance, and reduce structural loads.
Our GPS foam is custom-cut to your project’s specs, making it easy to create complex shapes and repeatable forms. It’s commonly used as void fill, blockouts, and cores in everything from structural panels to detailed architectural designs.
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Details & Uses
Common GPS Precast Uses
Bridge barricades and barriers
Architectural reveals and decorative features
Panel voids and wall insets
Manholes and vault forms
Cast-in-place wall sections and blockouts
Why Use GPS for Precast?
Lightweight and easy to install
Enhanced compressive strength for demanding environments
Provides insulation for sandwich panels or embedded features
Precision-cut for repeatable, complex shapes
Moisture-resistant and dimensionally stable
Higher thermal efficiency than standard EPS
Learn more about the other products we manufacture.
Our Foam Products
Foam questions?
We've got answers.
Learn more about the applications for our foam products.
What types of foam products do you manufacture?
Our specialties are expanded polystyrene (EPS), expanded polypropylene (EPP), and graphite polystyrene (GPS), These products have many applications, and can be used in roofing, insulation, landscaping, stabilization, exterior siding, and more.
Do you offer custom foam manufacturing?
We do have the capability to customize our products to your specific needs. In addition, we offer custom packaging, either to ensure your product arrives damage-free, or for your own shipping and packaging needs.
Which types of foam are best for each application?
Most of our applications can be made with multiple foam types, and we’ll guide you to choose the best one for your requirements. Here’s a list of what we manufacture:
- Custom packaging: EPS or EPP
- Insulated shipping containers: EPS or GPS
- Precast: EPS or GPS
- Garage doors and door cores: EPP, EPS, or GPS
- Sheathing: EPS or GPS
- EIFS: EPS or GPS
- Geofoam: EPS
- Roofing: EPS
- OEM: EPP, EPS, or GPS
Which type of foam is the best for my project?
If multiple foam types are able to be used in your project, we’ll discuss the benefits of each product and decide together what will be the best choice for your project.
Are your products sustainable or LEED-certified?
Many of our products can contribute to LEED points, depending on application and use.
Why use GPS foam in precast concrete manufacturing?
GPS provides precise, lightweight formwork or void fill with excellent insulating properties, ideal for architectural and structural panels.
Does GPS affect the strength of precast concrete?
No, GPS acts as a non-structural core or insert, allowing the surrounding concrete and reinforcement to carry loads.
Can GPS be custom-shaped for decorative or structural needs?
Yes, GPS can be CNC-cut or molded to detailed designs, making it ideal for custom forms or complex cast-in-place components.
Is GPS suitable for thermal insulation in precast panels?
Yes, GPS significantly improves the thermal performance of sandwich panels and insulated wall sections.
Is GPS foam durable enough for long-term use in precast applications?
GPS retains its physical properties over time, resisting moisture and degradation in both interior and exterior applications.
