ThermoSafe U-tek Phase Change Soft Refrigerant Cold Pack, -1°C (+30°F), 16 oz. - 596 - 16 Each

ThermoSafe U-tek Phase Change Soft Refrigerant Cold Pack, -1°C (+30°F), 16 oz.

Standard gel packs drift through their temperature range as they thaw; a phase change refrigerant holds at its transition point instead, which is what cold-chain shipments of vaccines, reagents and clinical specimens actually need. This 16 oz. U-tek pack is formulated to change phase at -1°C (+30°F) and stays in range around 15% longer than a standard gel pack. The laminated, metallised film exterior resists punctures in transit and doubles as a radiant heat barrier, and the pack returns to gel state on thawing so it can be refrozen and used again.

Key Features

• Phase change refrigerant formula holds temperature around 15% longer than standard gel packs
• Transitions at -1°C (+30°F), suiting products that need an accurate, consistent temperature rather than simply "cold"
• Laminated, metallised film exterior resists punctures and acts as a radiant heat barrier
• Returns to gel state when thawed, so packs can be refrozen and reused
• Nontoxic formulation for use around clinical and food-grade shipments
• 16 oz. soft-sided format conforms around awkwardly shaped payloads

Specifications