High Temperature | PCM OP21 | For Medical & Thermal Comfort Jackets
OP21 is a high-temperature organic phase change material designed for applications requiring temperature regulation above ambient levels. It is ideal for use in pharmaceutical and medical temperature-controlled shippers, thermal comfort jackets, and similar solutions. Thanks to its specialized properties, PCM OP21 effectively maintains stable temperatures where control above room temperature is critical. Additionally, it is a sustainable and reusable material, capable of delivering extended temperature control even under challenging environmental conditions.
Key Features
▪ High heat storage capacity
▪ Consistent performance over repeated thermal cycles
▪ Non-toxic and Biodegradable
Packaging Options




Corrosive Effects On Metals
| Metals | Effects |
|---|---|
| Mild Steel (MS) | Under Testing |
| Stainless Steel (SS) | Under Testing |
| Copper | Under Testing |
| Brass | Under Testing |
| Aluminium | Under Testing |
Typical Applications
Medicine Transport
Vaccines Transport
Thermal Jackets
Frequently Asked Question
What is PCM OP21 and what is its application range?
OP21 is a high-temperature organic phase change material designed for temperature regulation above ambient (i.e. warmer than room temperature). It’s suitable for use in pharmaceutical shippers, medical transport, and thermal comfort jackets.
How long can OP21 maintain the desired temperature?
The holdover time (how long it maintains the target temperature above ambient) will depend on ambient conditions, insulation quality, heat load, and how well the PCM is preconditioned.
Is OP21 reusable / rechargeable?
Yes — the product page states that OP21 is reusable. It’s designed to deliver extended temperature control under challenging conditions across cycles.
What insulation or design is recommended when using OP21?
To maximize performance, combine OP21 with good insulation (e.g. foams, textile insulators, barriers) to reduce heat transfer. The insulation thickness and type should be optimized based on ambient extremes, usage duration, and thermal loads.
Do you support bulk / custom orders for OP21?
Yes — customers can place bulk or customized orders. Contact sales/technical support for quote, packaging customization, and design assistance.