At Creative Foam USA, we specialize in high-performance foam solutions for a wide range of industries. But with so many foam types out there, it can be difficult to know which one is right for your specific application. This guide breaks down three of the most common foams we work with, EPS, GPS, and EPP, so you can understand their differences, advantages, and best-use scenarios. Whether you’re designing custom packaging, building insulated shipping containers, or sourcing materials for structural applications like geofoam or EIFS, this post will give you the clarity you need.
What is EPS Foam?
Expanded Polystyrene (EPS) is a lightweight, rigid, and closed-cell foam made from pre-expanded polystyrene beads. Known for its affordability and versatility, EPS is one of the most commonly used foams across many industries.
Key Features:
- Lightweight and durable
- Excellent thermal insulation
- Cost-effective
- 100% recyclable (with the right infrastructure)
- Common Applications:
- Custom Packaging & Insulated Shipping Containers
- Precast and OEM Uses
- Sheathing & Roofing
- Geofoam
- EIFS (Exterior Insulation and Finish Systems)
What is GPS Foam?
Graphite Polystyrene (GPS) is a next-generation version of EPS infused with graphite particles, which enhance its thermal performance. The result is a more efficient foam that performs better in space-limited environments.
Key Features:
- Higher R-value than EPS (up to 20% better)
- Superior moisture resistance
- Lightweight and moldable
- Excellent performance in all climates
- Common Applications:
- Building & Construction
- Insulated Shipping Containers
- OEM Uses
What is EPP Foam?
Expanded Polypropylene (EPP) is a resilient, impact-resistant foam known for its exceptional energy absorption. Unlike EPS and GPS, EPP can deform under stress and return to its original shape, making it highly reusable and ideal for dynamic applications.
Key Features:
- Durable and flexible
- Resistant to chemicals and water
- Recyclable and reusable
- Excellent impact protection and structural integrity
- Common Applications:
- Custom Packaging
- OEM Components
- Precast/Composite Uses
Comparing EPS vs. GPS vs. EPP
| Feature | EPS | GPS | EPP |
| Thermal Insulation | Good | Excellent | Moderate |
| Impact Resistance | Moderate | Moderate | Excellent |
| Cost | Lowest | Moderate | Higher |
| Reusability | Limited | Moderate | Excellent |
| Applications | Packaging, Construction, Geofoam | High-performance insulation, OEM | Reusable packaging, impact protection |
Choosing the Right Foam for Your Application
Need thermal protection on a budget? Go with EPS.
Looking for advanced insulation in compact spaces? GPS is your solution.
Packaging fragile or reusable items? Choose EPP.
At Creative Foam USA, our team is here to help you find the best material for your exact needs, whether that’s optimizing for performance, sustainability, or cost.
