E-commerce Packaging | Custom Shipping Boxes, Healthcare Packaging, Home & Garden Packaging


InsulShield Open Box

Recyclable, space-saving and innovative, WestRock InsulShield™ is a new solution for ambient, refrigerated and frozen temperature sensitive products. Using fiber-based corrugated board for strength, durability, and sustainability with peelable Met-PET (metalized polyester) laminated liners, InsulShield™ provides steady temperature maintenance. As a knock-down solution, InsulShield™ packaging ships flat and requires less space on trucks, in warehouses and on production floors.

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Engineered to Protect Your Products and Reputation

With our expertise in packaging design and temperature control, we have engineered InsulShield™ to provide protection against convection, conduction and radiation for optimal temperature retention.

We offer designs engineered for different temperature needs. In ISTA (International Safe Transit Association) testing, our ambient solution maintains a temperature below 80° F, our refrigerated solution maintains a temperature below 45° F and our frozen solution keeps internal temperatures below freezing for 24-72 hours depending on customer requirements.

  • Benefits
  • Heat Transfer Dynamics
  • recyclability


InsulShield Ideally Suited Markets

A New Solution for Temperature Sensitive Products

  • Fiber-based corrugated board for strength & durability
  • Peelable Met-PET (metalized polyester) laminated liners & inserts
  • Steady temperature maintenance
  • Benefits


    • Curbside recyclable*
    • Potential for labor savings
    • Space savings
    • Inbound shipping savings
    • Potential for improved customer satisfaction
    • Material savings
    • DIM weight optimization (comment: smaller finished box size vs. foam)

      *once silver lining is removed

    Heat Transfer Dynamics

    HTD Stacked Image

    InsulShield Addresses Key Heat Transfer Dynamics

    • Box designed with layers of containerboard which slows the rate of heat energy moving through the container, providing thermal insulation.
    • Corners manufactured to tight tolerances reducing the transfer and equalization of internal and external temperatures.
    • Peelable Met-PET laminated liners and inserts reflect back interior temperature, maintaining and prolonging optimal temperature range.
    • Radiant, Inserts reduce the absorption and emission of radiant heat energy, maintaining and prolonging target temperature.
    • Convective…. Reducing the exchange and equalization of internal and external air temperatures.



     1. Empty your box of its contents

    2. Open the Bottom flaps

    3. Rip or safely cut open the box along corner or seam