Smart science to improve lives™
Energy Technologies
  • Login | Register
Energy Technologies

CrodaTherm™ phase change materials

CrodaTherm is our brand for high quality bio-based phase change materials (PCMs) that utilise our expertise in organic, plant-based chemistries. They are a sustainable and cost-effective alternative to paraffinic and salt hydrate based PCMs.

CrodaTherm PCMs have high latent heat properties, which means they can store and release large quantities of energy when they change phase. The temperature at which they change phase can be selected with careful chemical design – so that they melt to absorb heat and solidify to release heat at defined, specific temperatures.

We offer phase change materials in solid wax or liquid form depending on temperature - and as powders or particle slurries in their microencapsulated form.

Sample sizes are available, whilst commercial waxes are available in drums and IBCs and microencapsulated products are available in bags, drums and IBCs. 

What makes CrodaTherm unique? 

CrodaTherm materials are organic phase change materials, but they have some key differences to more common organic paraffinic PCMs. 

  • CrodaTherm materials are USDA certified bio-based with (in most cases) 100% renewable carbon content, and many are expected to be or defined as readily biodegradable materials
  • They are lower in volatility than paraffinic PCMs, so they are less prone to evaporation. This results in higher flash points, which are safer in the final application
  • CrodaTherm is produced consistently to tight specifications, which is often not the case for paraffin PCMs, produced as by-products of crude oil refining.

When comparing CrodaTherm PCMs to salt hydrates, they have three key advantages: 

  • Organic PCMs have greater long-term stability, retaining their high latent heat properties and consistent temperature phase transitions over long periods of cycling and storage
  • CrodaTherm materials are non-corrosive, reducing hazards associated with processing, handling, transport, and material compatibility in the final application
  • Organic PCMs can be compounded with polymers into form-stable materials, which remain solid either side of the PCM phase transition.

Brochure: Phase change materials

6.4 MB

Technical paper: CrodaTherm PCM evaluation

483.0 KB

Where are CrodaTherm PCMs used? 

Phase change materials are already used extensively in temperature-controlled packaging to maintain the temperature of sensitive goods such as medicines, vaccines and food. 

They are also used in energy efficient space, such as heating, ventilation, air conditioning and cooling (HVAC) systems and thermal energy storage (TES). Applications include buildings, data centres/telecommunications and automotive.

In other areas, phase change materials are starting to become more attractive for commercial use to save, reuse and manage energy more efficiently, such as:

  • Lightweight buildings and construction materials
  • Low grade heat capture and reuse in vehicles
  • Waste heat management in consumer electronics and electric vehicles.

Contact us if you have a specific application in mind, and we can advise you on the selection and use of our products.

CrodaTherm for nurses

Read about how our CrodaTherm was used to help keep nurses cool during the Covid-19 pandemic

Dutch researchers demonstrated benefits to nurses when wearing INUTEQ cooling vests under personal protective equipment (PPE).

Read more

Partnerships for CrodaTherm

Are you looking to use CrodaTherm phase change materials in your application?

Read more about our philosophy on collaborations and partnerships, and our commitment to working with you to overcome technical application challenges.

Read more

Recommended products

CrodaTherm™ 15

CrodaTherm 15 is a bio-based organic phase change material that is used in temperature controlled packaging to control the temperature of sensitive goods. It is 100% bio-based and certified USDA bio-preferred, with excellent thermal properties.

CrodaTherm™ 19

CrodaTherm 19 is a bio-based organic phase change material that is used in temperature controlled packaging to control the temperature of sensitive goods. It is 100% bio-based and certified USDA bio-preferred, with excellent thermal properties.

CrodaTherm™ 21

CrodaTherm 21 is a readily biodegradable phase change material used in temperature controlled packaging and thermal energy storage applications.

CrodaTherm™ 24W

CrodaTherm 24W is a unique phase change material in the CrodaTherm brand, whereby it exhibits a wide melting and crystallisation profile, providing an excellent solution in applications with an temperature range between 18-24 ºC.

CrodaTherm™ 29

CrodaTherm 29 is ideal for use in textiles, HVAC and applications requiring above room temperature thermal management. CrodaTherm 29 has low flammability and is readily biodegradable.

CrodaTherm™ 32

CrodaTherm 32 is suitable for use in HVAC applications to reduce operating costs of new and existing installations. Its low flammability increases safety and it has an excellent sustainability profile as it is derived from bio-based sources.

CrodaTherm™ 37

CrodaTherm 37 can be used in heating, ventilation and air conditioning systems to reduce energy consumption through free cooling.

CrodaTherm™ 47

CrodaTherm 47 is a specalised PCM available for energy storage, electronics and automotive applications where increasing energy efficiency through heat recovery is required.

CrodaTherm™ 5

CrodaTherm 5 is our best selling phase change material for temperature controlled packaging solutions. Its unique thermal profile with sharp melting and crystallisation peaks protects goods by keeping them at a constant temperature.

CrodaTherm™ 53

CrodaTherm 53 is a high temperature PCM, used in energy storage applications to manage heat effectively.

CrodaTherm™ 60

CrodaTherm 60 is used in battery thermal management and industrial heating systems to increase the thermal potential of heat management systems when capacity is limited.

CrodaTherm™ 6.5

CrodaTherm 6.5 is another one of our best selling phase change materials for temperature controlled packaging applications.

CrodaTherm™ 74

CrodaTherm 74 has been used in district heating systems for thermal management of HVAC systems, increasing the efficiency and heat storage potential of the system.

CrodaTherm™ 9.5

CrodaTherm 9.5 is a PCM on our range that is well used in temperature controlled packaging, where goods are shipped in isothermal containers which can keep the temperature of goods consistent for over 48 hours.

CrodaTherm™ ME29D

CrodaTherm ME29D is an acrylic core shell particle dispersion in water. The patented core-shell microcapsule technology is formaldehyde-free and the PCM core is derived from plant-based feedstocks.

CrodaTherm™ ME29P

CrodaTherm ME29P is a microencapsulated phase change material with a peak melting temperature of 29°C, which is supplied as a powder.

Do you have a question about our CrodaTherm products?