Case study

InsulBox® Thermal Box Liner

InsulBox®
Product Description

The Wilpak Group produces a range of custom InsulBox® thermal box liners.

These thermal barrier systems enclose the packaged products to provide an enclosed thermal environment, that passively manages product temperature during storage and transport.

The InsulBox® is constructed from InsulPlatinum®, a high performance thermal barrier material that is exclusive to The Wilpak Group.

The InsulPlatinum® material is a heavy duty three layer highly reflective air cylinder barrier, consisting of a foil/air/foil laminated configuration.

Insulbox lining used to protect goods from temperature excursions

InsulBox®

Performance Testing

Clients using InsulBox® thermal box liners typically need to validate this product, ensuring that the product performance meets specified requirement.

Accordingly, InsulBox® has been independently validated by our clients:

  • Trial 1 – Laboratory (Controlled Environment)
  • Trial 2 – Commercial Route (Uncontrolled Environment)

Trial 1

Laboratory (Controlled Enviroment)

Overview

Client wanted relative performance data of the InsulBox® against a baseline exposure profile.

InsulBox profile – L 377 (15) x W333 (13) x H403 (14) mm (inches)

Thermal barrier material – InsulPlatinum®

 

Test Method

Location – Certified laboratory, USA

Timing – January 2017

Exposure Conditions – ISTA 7d 24 Hours Summer profile

Set-up

External temperature – controlled chamber environment

Internal temperature – measured by data logger (to ISTA requirements)

Payload – 4 x 48oz gel packs at -20⁰C

Performance Data

Internal Data Temperature Range

Maximum temperature of +10.0 °C

Minimum temperature of 0.0 °C

Performance Observations

Temperature stayed below the desired 8⁰C upper limit for 19 hours

Trial 2

Commercial Route (Uncontrolled Environment)

Overview

Pharmaceutical client wanted practical validation that goods stay under 8 °C during journey.

InsulBox profile – A4 L 300 x W210 x H230mm

Thermal barrier material – InsulPlatinum®

 

Test Method

Location – Distribution Route: Metropolitan Melbourne to rural Victoria, Australia

Timing – October 2015

Exposure Conditions – Seasonal Spring weather

Set-up

External temperature – data logger on outside surface of box

Internal temperature – data logger on inside surface of box

Payload – Typical mixed wholesale pharmaceutical order, with 1 kg ice pack

Performance Data

Internal Data Temperature Range

24-hour period

Maximum temperature of +6.5 °C

Minimum temperature of +2 °C

Performance Observations

Temperature stayed between 2- 8⁰C for 24 hours