Korrvu Retention Board or Two-Film Suspension?
Choose between Korrvu retention and suspension by the intended support arrangement. Both use film, but the product does not occupy the same relationship to the board and surrounding space. A request for a “film box” leaves that important decision unresolved.
Two different ways to hold the product
Sealed Air describes retention as film securing a product to corrugated board. Its suspension format holds the product between two film layers within the shipping container's airspace. These are manufacturer descriptions of the packaging families, not confirmation of an individual item's permitted size or weight. See Sealed Air's Korrvu product-line explanation.
| Decision | Retention route | Suspension route |
|---|---|---|
| Intended relationship | Product retained against a corrugated support | Product held between films in the container's airspace |
| Question for the packaging designer | Which product face may use the supporting board? | What assembled film arrangement and surrounding space does the product require? |
| Drawing to request | Exact retention assembly with product orientation | Exact suspension assembly with product position |
Connect that choice to an exact order
KOR106 is listed as a 7.5 × 5.5 × 2 inch kraft corrugated retention box, with an elastomeric membrane, ECT-32 construction and a flat storage format. Its buying unit is one per bundle. KOR105 is listed as a 12 × 10 × 5 inch kraft corrugated suspension box, with those dimensions identified as inside dimensions and one per bundle.
These are different products and different sizes. Neither listing provides a universal product-weight range or a drawing defining the maximum supported object. The manufacturer's stock-size examples also must not replace Packrift's stated buying units. Retain the exact SKU when requesting the assembly information.
Write the support requirement before requesting a substitute
Consider a hypothetical instrument with a designated underside and a customer requirement for a particular packing orientation. Send the supplier an orientation drawing and identify the surfaces that may contact packaging. Ask which exact retention or suspension assembly meets that brief. Do not translate “keep this face upward” into an assumption that either family will hold the instrument as required.
When comparing proposals, label each drawing with the product revision, packaging SKU and support method. A larger carton with a different support arrangement is a design change even when the instrument physically enters it. Have the person approving the package review that change before purchasing a replacement.
Approve the complete supported assembly
Record the selected method with its assembly instructions and the result of the package evaluation required for your shipment. The family name alone is not a shipping-performance approval. Review the Korrvu retention purchasing route for related options, and order the documented assembly rather than matching only its outer dimensions.