Top 10 Companies in the Calcium Chloride Dihydrate PCM Market (2026): Market Leaders Powering Global Thermal Storage

MARKET INSIGHTS

The global Calcium Chloride Dihydrate Phase Change Material (PCM) for Thermal Storage market size was valued at USD 185 million in 2025. The market is projected to grow from USD 198 million in 2026 to USD 425 million by 2034, exhibiting a CAGR of 10.1% during the forecast period.

Calcium Chloride Dihydrate Phase Change Material (PCM) serves as an inorganic salt hydrate designed specifically for thermal energy storage applications. It leverages the latent heat absorbed or released during its solid‑liquid phase transition, enabling efficient temperature regulation within targeted ranges suitable for building energy management, HVAC systems, and industrial thermal storage solutions. This material stands out for its relatively low cost, high volumetric energy density, and ability to operate effectively in moderate temperature windows, making it attractive for applications where stable thermal buffering is essential.

The market experiences steady expansion driven by growing emphasis on energy efficiency and sustainable thermal management practices worldwide. Rising demand for renewable energy integration and the need to balance intermittent power sources have heightened interest in advanced thermal storage technologies. Furthermore, increasing adoption in construction and industrial sectors stems from the push toward reducing peak energy loads and lowering operational costs associated with heating and cooling. While challenges such as potential supercooling and phase segregation require careful formulation and additives, ongoing material enhancements continue to improve reliability and performance. Key industry participants focus on developing composite solutions and encapsulation techniques to optimize cycle stability and heat transfer properties, supporting broader commercialization of these PCM systems in thermal storage markets.

Calcium Chloride (CaCl?) Dihydrate Phase Change Material (PCM) for Thermal Storage Market – View in Detailed Research Report

10️⃣ 1. PCM Products Ltd.

Headquarters: London, United Kingdom
Key Offering: Commercial‑grade calcium chloride dihydrate PCM blends and encapsulated modules for building envelopes and industrial heat sinks

PCM Products Ltd. has built a reputation for delivering high‑purity salt hydrates that meet stringent ASTM and ISO standards. Their proprietary composite formulation incorporates a micro‑porous silica scaffold that mitigates supercooling while preserving latent heat capacity, allowing consistent performance over thousands of cycles. The company’s modules are pre‑loaded into flexible panels that can be integrated into wall and roof assemblies, simplifying installation for architects and contractors.

Sustainability Initiatives:

• Investing in a dedicated R&D lab focused on graphene‑enhanced PCM composites
• Partnering with university energy‑efficiency programs to validate passive cooling performance in residential prototypes
• Setting a 20% reduction target for embodied carbon in PCM production by 2030

🔟 2. Rubitherm Technologies GmbH

Headquarters: Wuppertal, Germany
Key Offering: Advanced shape‑stable PCM boards and micro‑encapsulated powders for HVAC and solar thermal applications

Rubitherm’s flagship product, the “Thermoblock” series, integrates calcium chloride dihydrate with a proprietary polymer binder that eliminates leakage and enhances thermal conductivity. The company’s PCM boards are rated for up to 5,000 charge‑discharge cycles with less than 5% latent heat loss, making them suitable for district heating networks and industrial heat recovery loops.

Sustainability Initiatives:

• Deploying renewable electricity from wind farms for PCM manufacturing
• Collaborating with local municipalities to retrofit public buildings with passive thermal storage panels
• Achieving ISO 14001 certification for environmental management across all production sites

9️⃣ 3. Climator Sweden AB

Headquarters: Stockholm, Sweden
Key Offering: Modular PCM units for cold‑chain logistics and pharmaceutical storage

Climator’s PCM modules are engineered to maintain a narrow temperature band of 2 °C to 8 °C, ideal for temperature‑sensitive goods. The company’s use of a dual‑layer encapsulation system protects the salt hydrate from moisture ingress, while a copper heat‑exchange interface maximizes heat transfer to refrigerated containers.

Sustainability Initiatives:

• Developing a closed‑loop supply chain that recycles PCM from decommissioned units
• Partnering with logistics firms to reduce CO₂ emissions through passive cooling in long‑haul transport
• Engaging in life‑cycle assessment studies to quantify energy savings in cold‑chain operations

8️⃣ 4. Pluss Advanced Technologies Pvt. Ltd.

Headquarters: Bengaluru, India
Key Offering: Cost‑effective PCM powders for large‑scale industrial heat exchangers

Pluss Advanced Technologies focuses on scalable production of calcium chloride dihydrate PCM in granular form, optimized for use in steam boilers and process heat exchangers. Their formulation includes a nano‑silica additive that improves thermal conductivity without compromising latent heat capacity.

Sustainability Initiatives:

• Investing in solar PV installations at manufacturing plants to offset electricity consumption
• Collaborating with Indian government energy‑efficiency programs to deploy PCM in district heating projects
• Implementing waste‑water recycling protocols in the production line

7️⃣ 5. TETRA Technologies, Inc.

Headquarters: San Francisco, United States
Key Offering: High‑performance PCM composites for data‑center thermal management

TETRA’s PCM solutions are tailored for the data‑center market, where rapid heat absorption and release can reduce the need for active cooling. The company’s proprietary binder incorporates phase‑change nanoparticles that increase the overall heat flux by up to 30% compared with conventional PCM.

Sustainability Initiatives:

• Partnering with cloud‑service providers to benchmark energy savings from PCM‑assisted cooling
• Adopting zero‑defect manufacturing processes to minimize material waste
• Targeting a 15% reduction in embodied energy by 2035

6️⃣ 6. Solvay S.A.

Headquarters: Brussels, Belgium
Key Offering: Bulk calcium chloride dihydrate for industrial PCM applications

Solvay supplies high‑purity calcium chloride dihydrate to OEMs worldwide. Their PCM is engineered for use in combined heat and power (CHP) plants, where the material’s stable phase transition helps smooth out temperature fluctuations during load changes.

Sustainability Initiatives:

• Integrating renewable hydrogen into the calcium chloride production process
• Collaborating with European energy authorities to certify PCM modules for district heating
• Maintaining a comprehensive product stewardship program for end‑of‑life PCM disposal

5️⃣ 7. InsolCorp LLC

Headquarters: Houston, United States
Key Offering: Encapsulated PCM cartridges for HVAC retrofits

InsolCorp’s cartridges are pre‑filled with calcium chloride dihydrate and a polymer matrix that prevents leakage. Designed for retrofitting existing HVAC units, the cartridges enable immediate heat‑storage benefits without major system redesign.

Sustainability Initiatives:

• Providing a rebate program for commercial buildings that install PCM cartridges to offset installation costs
• Conducting field trials to demonstrate energy savings in commercial HVAC systems
• Engaging in cross‑industry partnerships to promote PCM adoption in the manufacturing sector

4️⃣ 8. Hangzhou Phase Change Technology Co., Ltd.

Headquarters: Hangzhou, China
Key Offering: Large‑volume PCM panels for solar thermal storage

The company’s PCM panels are designed for use in solar‑thermal plants, providing a low‑cost buffer that smooths out diurnal temperature swings. Their panels feature a high‑density calcium chloride dihydrate core surrounded by a corrosion‑resistant alloy shell.

Sustainability Initiatives:

• Implementing a green‑chemistry approach to reduce hazardous by‑products during PCM synthesis
• Partnering with Chinese renewable‑energy ministries to deploy PCM in solar‑thermal projects
• Achieving a 25% reduction in water consumption in PCM manufacturing by 2030

3️⃣ 9. Phase Change Energy Solutions

Headquarters: Austin, United States
Key Offering: Custom PCM blends for industrial waste‑heat recovery

Phase Change Energy Solutions offers tailor‑made PCM blends that match the specific temperature ranges of industrial waste‑heat streams. Their products are formulated with a combination of calcium chloride dihydrate and a phase‑change polymer to expand the usable temperature window.

Sustainability Initiatives:

• Developing a closed‑loop PCM recycling program for industrial clients
• Collaborating with environmental agencies to certify PCM modules for carbon‑capture facilities
• Targeting a 10% increase in PCM adoption across the manufacturing sector by 2028

2️⃣ 10. PCM Products Ltd.

Headquarters: London, United Kingdom
Key Offering: High‑purity calcium chloride dihydrate for research and commercial deployment

PCM Products Ltd. offers a range of PCM grades, from laboratory‑grade to commercial‑grade, allowing developers to test and validate new PCM configurations. Their products are certified for use in sensitive applications such as data‑center cooling and pharmaceutical storage.

Sustainability Initiatives:

• Providing a free technical support line for SMEs exploring PCM integration
• Running a grant program for startups focused on PCM‑based building solutions
• Maintaining a transparent supply‑chain audit to ensure responsible sourcing of raw materials

Calcium Chloride (CaCl?) Dihydrate Phase Change Material (PCM) for Thermal Storage Market – View in Detailed Research Report

Calcium Chloride (CaCl?) Dihydrate Phase Change Material (PCM) for Thermal Storage Market – View in Detailed Research Report

Outlook

Over the next decade, the calcium chloride dihydrate PCM market is set to transition from a niche niche to a mainstream thermal‑storage solution. The shift is driven by the convergence of lower material costs, improved composite formulations, and the escalating need for reliable, low‑temperature heat buffers in both commercial and industrial sectors. As building codes tighten and renewable‑energy penetration rises, the demand for PCM that can operate stably within the 20 °C to 45 °C window will grow, creating new opportunities for companies that can deliver high‑performance, corrosion‑resistant products.

Future Trends

• Continued development of graphene‑enhanced PCM composites that lift thermal conductivity beyond 10 W m⁻¹ K⁻¹ while preserving latent heat capacity.
• Expansion of PCM integration into smart building platforms, where IoT sensors monitor phase‑change cycles and optimize energy flows in real time.
• Growth of PCM‑based modules for data‑center cooling, where the ability to absorb peak thermal loads can reduce the need for active chillers.
• Increased collaboration between PCM manufacturers and renewable‑energy developers to create hybrid storage solutions that combine latent heat with phase‑change materials and battery systems.