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  • Fancy Foods Show
    1st June, 2015

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  • Cold Chain 12th Annual Forum
    3rd October, 2014

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  • Pack Expo 2014
    5th November, 2014

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  • Thermal Shield Returns to 2013 Boston Seafood Show
    12th March, 2013

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  • Thermal Shield Visits 2012 National Chocolate Show
    18th November, 2012

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  • Thermal Shield Acquires Xpander Pak
    30th June, 2014

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  • Armada Pharmacy Expo
    9th May, 2014

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  • Pack Expo 2015
    28th September, 2015

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  • NEW: On-site Testing Chamber
    1st June, 2015

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  • Thermal Shield to exhibit at Armada Pharmacy Summit
    6th May, 2016

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  • 2016 Annual Retail Confectioners Expo
    24th June, 2016

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  • Pack Expo 2016
    9th November, 2016

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  • Pack Expo East 2017
    1st March, 2017

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  • Asembia Specialty Pharmacy Summit 2017
    3rd May, 2017

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Xpander Pak Demo Video
Look for us in 2017!
Here’s a short video (44 second mark) of our staff
Asembia Video
Xpander Pak® time lapse
Expansion of Rx² mailer with sealing instructions

Xpander Pak®

Xpander Pak Expanding

Cushioning-on-demand, when you need it. Simply pierce outer film of the foam expansion mailer and watch as it expands up to 5x times its original size. "Lock-In" your product and secure the contents exactly where you place them, no void-fill needed.

Xpander Pak® foam expansion mailers require less space versus traditional EPS coolers and are an effective replacement for small shipments, clinical samples, etc. Whether you're shipping high-value components or temperature sensitive pharmaceuticals that require extended duration shipping time, Xpander Pak® can save you a bundle. In fact, for shipments under 1 cubic foot, Xpander Pak is a direct replacement for EPS Foam. Tough and durable on the outside, ultra soft and insulating on the inside.

Watch our Time Lapse Video demo of an Rx² grade mailer expanding then put to the test.

For official testing results, see our Assistance page

Xpander Pak Load & Seal


Item # Grade Description QTY /
Wt. /
Case (Lb)
1 PLT 2-12 PLT's
9x11"BEP0911AStandard1" - Foam Expansion Mailer1002419$1.83$183.00$1.54$154.40
BEP0911BRX1.375" - Foam Expansion Mailer1002422$2.05$205.00$1.73$173.00
BEP0911CRX21.625" - Foam Expansion Mailer722424$3.13$225.36$2.85$205.20
12x14"BEP1214AStandard1" - Foam Expansion Mailer483016$2.60$124.80$2.20$105.60
BEP1214BRX1.375" - Foam Expansion Mailer483016$3.26$156.48$2.77$132.96
BEP1214CRX21.625" - Foam Expansion Mailer482029$4.41$211.68$4.01$192.48
14x18"BEP1418AStandard1" - Foam Expansion Mailer303015$3.56$106.80$3.02$90.60
BEP1418BRX1.375" - Foam Expansion Mailer303015$4.51$135.30$3.81$114.30
BEP1418CRX21.625" - Foam Expansion Mailer302022$6.03$180.90$5.48$164.40
*Other options available upon request: Call for pricing
*Call for distributor pricing   

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Patent/Trademark Statement: Thermal Shield®, Xpander Pak®, Nature Ice™, Growler Pak®, Nature-Pack™, BioMailer®, BioCooler™, Pallet Shield® & Cargo Shield® are federally registered trademarks. All other trademarks, copyrights or logos sited herein are the property of Thermal Shield® products. U.S. Patents 5,820,268 / 6,007,467 / 6,080,096 / 7,021,524 / 7,140,773 with additional patents pending.