Expanded Polypropylene (EPP) boxes are transforming cold-chain shipping. Unlike disposable foam or cardboard, EPP is a super-tough, reusable foam. It bounces back from hits, stays insulating for years, and handles hundreds of shipments. For temperature-sensitive goods like vaccines or fresh seafood, this means fewer spoiled products, lower waste, and savings over time.

What Makes EPP Special?
EPP’s secret is its tiny air-trapping bubbles. This structure slows heat transfer both ways – keeping cold items cold and warm items stable. No chemical binders mean EPP is food-safe and odorless, ideal for sushi or medicines. It’s also ultra-lightweight, saving transport fuel and costs.
Helpful decision tools
Check the details before you choose packaging
These quick tools can help you compare route risk, sizing needs, coolant choices, and packaging details before you request a quote.
Compliance Checklist Generator
Build a practical checklist for packaging review, shipping, and documentation.
Build checklistIce Pack Calculator
Estimate gel ice pack quantity for chilled shipments and practical route planning.
Estimate ice packsPackaging Selector
Compare insulated packaging options by product, route, and temperature need.
Find packagingBuilt for Sustainability
A single EPP box replaces hundreds of single-use shippers, slashing landfill waste. When it finally wears out? It’s 100% recyclable into new boxes, with no downgrading. Plus, EPP uses eco-friendly blowing agents, helping brands hit green targets.
Proven Performance
Real-world results:
- Pharmacies see 40% fewer temperature failures.
- Seafood shippers cut damage claims significantly.
- Warehouses stack boxes easily with no bending, speeding up automated systems.
Tempk’s EPP Advantage:
Tempk supercharges EPP with:
Higher density (≥60 g/L): Better insulation + crush resistance.
Tight-seal lid: Blocks warm air entry.
Optional VIP liner: Holds 0-8°C for up to 5 days.
RFID tags: Track reuse cycles instantly.
Smooth FDA-approved interior: Easy cleaning.
Certified to ISTA 7D/CNAS thermal standards in 5L–60L sizes.