We are the leader in temperature assurance packaging solutions.
PolarPack®, U-tek® and Thermo Phase™ Powered by Puretemp® refrigerants and phase change materials keep temperature critical packages at precise temperatures during transit. Available in a broad selection of styles and a multitude of sizes, they provide reliable temperature protection that meets almost any product specification.
PolarPacks are refrigerated or frozen gel packs and foam bricks that offer an economical alternative to wet ice. Polar Packs are available in a variety of sizes and styles that offer reliable protection for shipping temperature sensitive products.
Enclosed in durable polyethylene film, PolarPack gel packs provide reliable non-mechanical refrigeration for the safe transport of food, pharmaceuticals and medical products.
A multi-layered exterior minimizes surface condensation, protecting your product from moisture damage. An outer film layer absorbs condensation, ensuring that products arrive in perfect condition.
Find PolarPack Standard and Moisture Guard in our catalog.
PolarPack foam bricks never change shape during freezing, thawing or transit and maintain designated packing configurations throughout the trip. Each brick is vacuum sealed for consistent weight and shape.
Find PolarPack Foam Bricks in our catalog.
U-tek phase change materials provide longer protection than standard gel packs to help maintain critical temperatures for extended periods of time. The unique phase change formula is ideal for products requiring frozen temperatures or extreme cold that do not tolerate dry ice or carbon dioxide. U-tek phase change materials have a laminated, metallic film exterior that provides a radiant heat barrier. U-tek packs resist punctures and our structured gel formulation minimizes leakage.
Find U-tek phase change materials in our catalog.
The industry’s only USDA Bio Preferred phase change material. ThermoPhase powered by PureTemp bio-based PCMs are non-hazardous, 100 percent renewable and environmentally-friendly. Even after thousands of thermal cycles, tests show PureTemp experiences no thermal degradation.
Download a PDF to learn more about ThermoPhase phase change materials.
Sonoco ThermoSafe's Greenbox is an award-winning sustainable package system designed for the safe transportation of temperature-sensitive products.
Shop for Sonoco ThermoSafe temperature assurance products now.