White EPS Resin
Classic Expandable Polystyrene for Packaging, Insulation & Industrial Applications
White EPS, widely recognised as Standard Expandable Polystyrene, is a versatile polymer material prized for its excellent thermal insulation, lightweight construction, cushioning capability, and superior shock absorption.
At MarkoBenz, we manufacture premium White EPS resin beads engineered for efficient moulding, consistent expansion, and dependable performance across a broad range of industries.
White EPS forms the cornerstone of our expandable polystyrene product range, serving manufacturers in protective packaging, building insulation, cold-chain logistics, and moulded industrial components.
Product Characteristics
| Type | F Grade (Flame Retardant) | BP Grade (Fast Cycle) |
|---|---|---|
| Grade | Flame-retardant expandable polystyrene | Fast Cycle High-Expansion EPS resin |
| Characteristics | Excellent flame resistance, smooth surface finish, low shrinkage, wide moulding range | Short maturation time, fast moulding cycle, high expansion ratio, energy-efficient processing |
| Applications | Fire-resistant insulation boards, construction panels, safety packaging | High-volume packaging, moulded EPS blocks, appliance packaging, industrial components |
Flame Retardant EPS Resin
Flame Retardant EPS is a specialised grade of expandable polystyrene resin formulated for enhanced fire safety in construction and packaging applications. This material is HBCD-free, making it fully compliant with modern environmental regulations and suitable for global markets.
Key Applications
- Building & cold-chain insulation panels
- Electronics packaging
- Appliance packaging
- Construction boards & sandwich panels
Benefits
- Fire resistance without harmful chemicals
- Improved building safety & global compliance
- Retains all standard EPS processing properties
- Suitable for construction & sensitive packaging
Flame Retardant EPS is ideal for manufacturers seeking safe, reliable, and regulation-compliant EPS raw materials.
Flame Retardant EPS Grades
| Grade | Bead Size (mm) | Density (g/l) |
|---|---|---|
| Test Method | ASTM D 1921 | Internal test method |
| F 121 | 1.6 – 2.5 | 12 – 20 |
| F 221 | 1.25 – 2.0 | 13 – 25 |
| F 321 | 0.85 – 1.20 | 13 – 25 |
| F 325 | 0.71 – 1.25 | 13 – 25 |
| F 422 | 0.71 – 1.00 | 12 – 30 |
| F 522 | 0.42 – 0.71 | 14 – 35 |
Fast Cycle High-Expansion EPS
Fast Cycle EPS is a high-performance expandable polystyrene resin engineered for rapid moulding cycles and high-volume production. This grade is widely employed in automated EPS moulding systems, enabling manufacturers to boost productivity and cut manufacturing time.
Key Features
- High expansion capability for lightweight products
- Faster moulding cycles for improved efficiency
- Strong bead bonding & excellent surface finish
- Reduced material usage & lower manufacturing cost
Benefits
- Higher production efficiency
- Lower product weight without sacrificing strength
- Cost savings from reduced material & faster turnaround
- Ideal for large-scale packaging production
Fast Cycle EPS Grades
| Grade | Bead Size (mm) | Density (g/l) |
|---|---|---|
| Test Method | ASTM D 1921 | Internal test method |
| BP 121 | 1.6 – 2.5 | 12 – 20 |
| BP 221 | 1.25 – 2.0 | 13 – 25 |
| BP 321 | 0.85 – 1.20 | 13 – 25 |
| BP 325 | 0.71 – 1.25 | 13 – 25 |
| BP 422 | 0.71 – 1.00 | 12 – 30 |
| BP 522 | 0.42 – 0.71 | 14 – 35 |
Applications of White EPS
Widely used across multiple industries for its lightweight structure, insulation properties, and shock absorption.
- •Electronics packaging and protective appliance packaging
- •Industrial packaging inserts for fragile and high-value products
- •EPS insulation boards for construction and building insulation
- •Wall insulation panels and roof insulation systems
- •Pharmaceutical transport boxes and cold-chain packaging
- •Food packaging containers and temperature-controlled logistics
- •Moulded EPS components for industrial applications
- •Protective cushioning materials for shipping and storage
Compliance
Our Flame Retardant Expandable Polystyrene (EPS) grades comply with REACH and RoHS testing standards, ensuring safe and environmentally responsible use in global markets.
Ambient Temperature
Ambient temperature and humidity influence the maturation time of EPS resin during processing. Higher temperatures shorten maturation time, while cooler conditions extend it.
Handling & Storage Conditions
- ⚠Store expandable polystyrene beads in dry, well-ventilated areas at temperatures below 25 °C.
- ⚠Packed material must not be exposed to direct sunlight for prolonged periods and must be protected from mechanical damage.
- ⚠At higher temperatures (> 25 °C) there is a risk of blowing agent loss, which can result in higher achievable density.
- ⚠Storage areas should include bottom ventilation ports, as the blowing agent is heavier than air.
- ⚠If storage temperature exceeds the recommended level, processing performance will gradually decline and minimum achievable density will increase.
- ⚠Sparks, smoking, and welding in the vicinity are strictly prohibited. Keep away from fire and ignition sources.
Processing Guidelines
- ✓Maintain proper earthing in all material conveying systems.
- ✓Use dry, saturated steam for expansion.
- ✓Ensure insulated steam lines for energy efficiency.
- ✓Maintain pre-expander chamber temperature at 97–98 °C.
- ✓Recommended pressure is 0.1 to 0.3 kg/cm² in the pre-expander chamber.
Frequently Asked Questions
Common queries about our White EPS resin grades.
Ready to Source White EPS Resin?
Get in touch for competitive pricing, free samples, and expert technical guidance.