Question 1

What are stone paper corrugated boxes?

Accepted Answer

Corrugated boxes made from stone paper — a mineral-based sheet material produced primarily from calcium carbonate combined with selected resin binders, converted into corrugated sheets and boxes.

Question 2

What are 3RBOX boxes made of?

Accepted Answer

Approximately 65%–80% calcium carbonate-based mineral content and 20%–35% resin (PE / PP / PVC by application). Ratio adjusts by product.

Question 3

Are stone paper corrugated boxes waterproof?

Accepted Answer

The material is water-resistant and does not disintegrate on contact with water. Box-level performance depends on structure, thickness, and finish.

Question 4

Are they suitable for seafood packaging?

Accepted Answer

Yes. They are used for fish, shrimp, shellfish, and frozen seafood with wet, iced, and moisture-prone handling.

Question 5

Are they suitable for fruits and vegetables?

Accepted Answer

Yes. Common for berries, leafy greens, mushrooms, citrus, tropical fruit, and agricultural export.

Question 6

Are they suitable for cold chain logistics?

Accepted Answer

Yes — for refrigerated, frozen, and long-distance logistics environments, per project requirements.

Everything B2B buyers ask about stone paper corrugated packaging

Product basics

Alternatives to other packaging materials

Customization

Sustainability & compliance

Need Waterproof Packaging for Seafood, Produce or Cold Chain Logistics?

Everything B2B buyers ask about stone paper corrugated packaging

Product basics

What are stone paper corrugated boxes?

What are 3RBOX boxes made of?

Are stone paper corrugated boxes waterproof?

Are they suitable for seafood packaging?

Are they suitable for fruits and vegetables?

Are they suitable for cold chain logistics?

Alternatives to other packaging materials

Can stone paper boxes replace traditional cardboard boxes?

Are they an alternative to EPS foam boxes?

Are they an alternative to PP corrugated boxes?

How do they compare with plastic hollow board boxes?

Customization

Can 3RBOX customize box size and structure?

Can you add ventilation holes or drainage design?

Can you print logos or brand graphics?

Can you design packaging for specific loading weight?

Can you provide samples?

Sustainability & compliance

Are 3RBOX stone paper boxes recyclable?

Are they reusable?

Are they biodegradable?

What certifications or test reports are available?

Do you support RoHS, FDA, REACH, or SGS documentation?

Need Waterproof Packaging for Seafood, Produce or Cold Chain Logistics?