High Rct Corrugating Medium Paper for 5/ 7 Layer Cardboard

A: Regular corrugating medium is suitable for regular goods in dry environments. Double-sized high-strength corrugating medium not only offers higher ring crush strength (allowing cartons to be stacked higher and carry heavier loads), but also features water-resistant treatment on both sides, maintaining its strength even in cold-chain or humid conditions. Although the cost is slightly higher, it is a more reliable choice for demanding export packaging.

A: This paper grade already has good water resistance, as the double-sided sizing forms a film layer on the surface that effectively slows down moisture penetration. However, if you need a higher level of moisture protection (such as for long-term cold storage or high-humidity sea freight), we can apply additional surface water-resistance treatment on top of this, or combine it with moisture-resistant liner board to achieve even better performance.

A: Yes, it can. Our double-sized high-strength corrugating medium can be supplied with FSC certification upon request, along with the relevant documentation and traceability records. If you are exporting to European or North American markets, we recommend choosing the FSC-certified version, as it is a basic requirement for many international brands.