Tag blowing agent

Meeting Indonesia’s Isopentane Demand: How Junyuan Petroleum Group Ensures Reliable Supply for Key Industries

Indonesia’s industrial growth and expanding refrigeration and foam manufacturing sectors have driven up the demand for high-purity Isopentane. As a critical solvent and blowing agent, Isopentane is widely used in the production of polyurethane (PU) foams, adhesives, and refrigerants. Junyuan Petroleum Group, as a leading Asian supplier, ensures stable supply through consistent production capacity, flexible export logistics, and tailored packaging options. With ISO tank and drum availability, the company is committed to supporting Indonesia’s growing chemical sector with high-quality and dependable solutions.

Isopentane, Indonesia, PU foam, blowing agent, solvent, Junyuan Petroleum Group, refrigerants, industrial chemicals, #Isopentane, #Pentane, #BlowingAgent, #IndonesiaChemicals, #PUfoam, #Adhesives

Indonesia’s Growing Demand for Isopentane

The Indonesian market has witnessed rapid growth in downstream sectors such as:

• Refrigeration manufacturing

• PU foam production for construction and appliances

• Solvent-based adhesives for packaging and footwear

Isopentane is a preferred choice in these sectors due to its low boiling point, fast evaporation, and excellent solvency properties.

Applications of Isopentane in Indonesia:

1. PU Foam Industry:

Used as a co-blowing agent with Cyclopentane in the production of rigid polyurethane foams, crucial for thermal insulation in refrigerators and freezers.

2. Adhesives and Sealants:

Serves as a solvent that enhances tackiness, controls viscosity, and speeds up drying—important for Indonesia’s footwear, automotive, and construction sectors.

3. Refrigerant Blends:

Incorporated into refrigerant formulations for optimized cooling performance and pressure balance.

How Junyuan Petroleum Group Ensures Stable Supply

1. Strong Production Capacity:

With dedicated facilities for high-purity Isopentane (95% and 99%), Junyuan Petroleum Group maintains a robust and scalable production line to meet bulk demands.

2. Export-Grade Packaging:

Products are shipped in ISO tanks for bulk users and drums for regional distributors and flexible volume clients.

3. Tailored Logistics for Indonesia:

• Close cooperation with regional shipping partners

• Stable lead times and proactive demand planning

• Multi-port shipping options to Jakarta, Surabaya, and other industrial hubs

4. Technical Support:

Our team provides full documentation support (COA, SDS, REACH, etc.) and technical guidance for blending or formulation compatibility.

Conclusion:

As Indonesia continues its industrial expansion, the demand for high-performance solvents and blowing agents like Isopentane will only rise. Junyuan Petroleum Group stands as a reliable partner, offering not only high-quality products but also consistent delivery and technical reliability to help Indonesian manufacturers grow confidently and sustainably.

Cyclopentane: The Eco-Friendly Blowing Agent Driving the Future of PU Foam Insulation

A Sustainable Alternative to HCFC-141b for Thermoware, Refrigeration, and Construction Industries

With HCFC-141b officially phased out in many countries, Cyclopentane has become the leading blowing agent for environmentally conscious manufacturers. Offering zero ozone depletion potential and low GWP, Cyclopentane ensures top-tier insulation performance in polyurethane foam systems. Widely adopted across thermoware, cold chain, and construction sectors, it is now the preferred solution for global buyers seeking performance and compliance. Our Cyclopentane is available in ISO tank and Drum packaging, ensuring flexible, export-ready delivery for industrial applications.

Cyclopentane, blowing agent, PU foam, 141b replacement, eco-friendly foam chemical, thermal insulation, refrigerant-grade pentane, thermoware industry, polyurethane polyol, #Cyclopentane, #Pentane, #BlowingAgent, #InsulationFoam, #Polyurethane

Why Cyclopentane?

1. Zero Ozone Depletion, Low GWP

• Fully compliant with the Montreal Protocol and Kigali Amendment

• Non-fluorinated, non-ozone-depleting alternative to 141b

• Ideal for long-term environmental strategies

2. Superior Insulation Performance

• Enables high-performance rigid polyurethane foam with excellent thermal resistance

• Ensures energy efficiency in refrigeration and building systems

• Compatible with polymeric MDI and blended polyol

3. Widely Used in Multiple Sectors

• Thermoware products: food containers, iceboxes

• Refrigeration: freezers, refrigerators, water heaters

• Building insulation: PU sandwich panels, PIR boards

4. Global Demand Trends

• Especially strong in Pakistan, India, Southeast Asia, Middle East, and Latin America

• Preferred by foam manufacturers upgrading to green blowing agents

5. Reliable Supply & Export-Ready Packaging

• Available grades: 95% / 99% Cyclopentane

• Packaging options:

• ISO Tank (bulk shipments for large-scale users)

• Drum (flexible supply for regional distributors or smaller factories)

• Backed by expert technical support and export experience

Your Trusted Partner in the Transition from 141b

With proven performance, global acceptance, and sustainable credentials, Cyclopentane is redefining the future of polyurethane insulation. If you’re a thermoware or foam manufacturer seeking a high-purity, export-grade blowing agent, our Cyclopentane is ready to ship.

Isopentane Price Holds Steady at CNY 9,500/MT: Market Signals Stability

Flat Pricing Reflects Balanced Demand and Supply in China’s Isopentane Market

As of April 29, 2025, the price of Isopentane in China remains unchanged at CNY 9,500/MT, showing no fluctuation over the past 12 days. With the current exchange rate of 1 USD ≈ 7.327 CNY, the equivalent international price stands at approximately USD 1,296/MT. This price stability reflects a steady market, with global demand sustained across refrigeration, insulation, and adhesives sectors. Now is a strategic time for procurement professionals to evaluate inventory planning.

Isopentane, Isopentane price, Isopentane supplier, chemical raw material, blowing agent, refrigerants, solvents, #Pentane, #Pentanes, chemical procurement, global sourcing

Current Price Snapshot (as of 2025-04-29):

• CNY: 9,500/MT

• USD: Approx. 1,296/MT (based on 1 USD ≈ 7.327 CNY)

• Change: 0.00% over the past 12 days

Applications of Isopentane:

Isopentane (2-methylbutane) is a versatile C5 hydrocarbon with multiple industrial applications:

1. Refrigeration Industry

• Used as a blowing agent in polyurethane (PU) and polyisocyanurate (PIR) foams

• Key component in insulation panels for refrigerators and cold chain systems

2. Thermal Insulation Materials

• Enables the production of rigid foam insulation boards

• Used widely in energy-efficient construction materials

3. Adhesive Industry

• Functions as a solvent in solvent-based adhesives

• Enhances resin solubility, drying speed, viscosity control, and flow

4. Laboratory Use

• Occasionally used as a non-polar solvent or reagent in analytical chemistry

Key Markets & Demand Regions:

• China: Largest production and consumption base, particularly for PU foams

• India: Strong demand in adhesives and insulation manufacturing

• Southeast Asia: Growth driven by infrastructure and cold storage

• Europe: Increasing use of Isopentane as an eco-friendly replacement for HFCs

• Middle East & Latin America: Steady demand from construction and refrigeration sectors

Market Outlook:

With Isopentane prices holding steady at CNY 9,500/MT or approximately USD 1,296/MT, this may be a favorable time for global buyers to secure volumes before seasonal demand pushes prices upward. As energy efficiency and environmental standards tighten globally, demand for non-fluorinated blowing agents like Isopentane is expected to rise.

Foam Expo is the continent's largest foam and adhesives supply chain event, offering three days of networking, innovation, and business growth.

Foam Expo 2025 North America – JUNE 24 – 26, 2025

“🌟 GET FOAM, NOT FOMO! 🌟 Foam Expo is the hub for innovation in foam technologies. We’re here showcasing our high-purity pentane solutions—essential for eco-friendly foam production and advanced thermal insulation. Let’s innovate together!

UNLOCK A YEAR OF BUSINESS OPPORTUNITIES

Foam Expo is the continent’s largest foam and adhesives supply chain event, offering three days of networking, innovation, and business growth. Explore new materials, technologies, and solutions, gain insights from conference sessions, and connect with key decision-makers at the expo. With foam and adhesives under one roof, your team can maximize opportunities and set the stage for success all year long.

Foam-Expo-2025

Balancing Performance and Cost: The Role of Cyclopentane/n-Pentane Blends in PU Foam Insulation

Why a 20/80 Cyclopentane/n-Pentane Ratio is Widely Used in the Insulation Industry

In the world of polyurethane (PU) rigid foam insulation, blowing agents play a crucial role in determining foam quality, thermal insulation, and process efficiency. Among the many options available, a blend consisting of 20% Cyclopentane and 80% n-Pentane has emerged as a go-to solution for manufacturers seeking an optimal balance of performance and cost.

Why This Specific Blend?

Each component in the blend brings unique properties to the table:

• Cyclopentane is valued for its low thermal conductivity, allowing foams to achieve excellent insulation performance. It also has zero ozone depletion potential (ODP) and relatively low global warming potential (GWP), making it more environmentally friendly. However, it is more expensive and can pose challenges in flowability and evaporation rate during foam processing.

• n-Pentane, on the other hand, is more economical, with higher vapor pressure and better flowability, making it easier to process, especially in large-scale industrial applications. But used alone, it tends to result in larger, less uniform foam cells, which can compromise insulation performance.

By blending 20% Cyclopentane with 80% n-Pentane, manufacturers can harness the strengths of both components: the superior insulation of Cyclopentane and the process efficiency and cost benefits of n-Pentane.

Where Is This Blend Used?

This pentane mixture is widely applied in:

• Household Refrigerators & Freezers: Used in the insulation layer of refrigerator cabinets and doors, ensuring high energy efficiency and consistent thermal performance.

• Construction Insulation Panels: Applied in rigid PU foam boards for building walls and roofs, providing lightweight, effective thermal barriers.

• Cold Chain Logistics: Employed in the insulation of refrigerated trucks and containers, helping maintain low temperatures during transportation.

Environmental and Safety Considerations

While the blend is non-ozone depleting and has lower GWP than legacy blowing agents like CFCs or HCFCs, it is still flammable and must be handled with proper safety protocols. Many modern production lines are equipped with explosion-proof equipment and ventilation systems to safely manage pentane-based formulations.

Conclusion

The 20/80 Cyclopentane/n-Pentane blend is a prime example of how smart chemical engineering can optimize material performance while balancing economic and environmental concerns. As global demand for energy-efficient insulation grows, such formulations will continue to play a key role in sustainable manufacturing.

Cyclopentane in Blue Steel Drums

Cyclopentane: The Unsung Hero of Refrigerator Insulation

Abstract

Cyclopentane has become a cornerstone in the production of modern refrigerators, serving as an efficient and environmentally friendly blowing agent for polyurethane foam insulation. This article explores its role, the importance of purity levels, and the factors influencing its performance in both standard and sensitive household refrigerators. While 95% purity cyclopentane is an industry standard, challenges such as impurities, manufacturing processes, and storage conditions can affect foam quality. By understanding these dynamics, manufacturers can optimize insulation performance and ensure reliable refrigeration solutions.

Keywords

Cyclopentane, refrigerator insulation, polyurethane foam, blowing agent, purity, manufacturing, refrigeration technology

Article

Refrigerators are an essential part of modern life, keeping food fresh and safe. But behind their sleek designs lies a critical technology: polyurethane foam insulation, which ensures energy efficiency and temperature stability. At the heart of this foam is cyclopentane, a hydrocarbon that has quietly revolutionized the refrigeration industry.

What Is Cyclopentane and Why Does It Matter?

Cyclopentane is a flammable, colorless liquid used as a blowing agent in the production of polyurethane foam. A blowing agent is a substance that creates gas bubbles within the foam mixture, forming a cellular structure that traps air and provides excellent thermal insulation. In refrigerators, this foam is injected between the inner and outer walls, creating a barrier that keeps cold air in and warm air out. Compared to older alternatives like chlorofluorocarbons (CFCs), cyclopentane is ozone-friendly and has a low global warming potential, making it a sustainable choice for manufacturers worldwide.

The Role of Purity in Performance

One question often arises: Is 95% purity cyclopentane sufficient for refrigerator production? The answer, based on widespread industry experience, is a resounding yes. This purity level has become a global standard because it strikes an effective balance between performance and practicality. The remaining 5% typically consists of other hydrocarbons, such as n-pentane or isopentane, which don’t significantly hinder its function as a blowing agent.

However, purity alone doesn’t tell the whole story. While 95% cyclopentane works flawlessly in most cases—supporting both standard and sensitive refrigerator models—its success depends on the quality of the supply and how it’s used. Poor-quality cyclopentane, laden with unexpected impurities from substandard refining, can disrupt foam formation, leading to irregular cell structures or even foam collapse. This can compromise insulation and, ultimately, the refrigerator’s efficiency.

Beyond Purity: What Can Go Wrong?

When issues like damaged foam arise, low purity is rarely the sole culprit. Several other factors play a bigger role:1. Impurities: Beyond the typical 5% hydrocarbon mix, contaminants from poor production processes can destabilize the foam. Manufacturers relying on unverified suppliers might unknowingly use subpar batches. 2. Manufacturing Precision: Foam production is a delicate dance of mixing polyols, isocyanates, and cyclopentane under precise conditions. Errors in temperature, pressure, or ratios can lead to defects, regardless of cyclopentane’s purity. 3. Storage and Handling: Cyclopentane’s volatility means it must be stored and transported carefully. Exposure to heat or pressure fluctuations can degrade its quality before it even reaches the factory floor.

For example, some manufacturers have reported foam damage linked to imported cyclopentane. Rather than purity being too low, the root cause often lies in inconsistent supply chains or inadequate process controls at the production site.

Packaging and Logistics: A Practical Consideration

In practice, cyclopentane is shipped in iron drums or specialized tanks, depending on the manufacturer’s setup. Some prefer bulk delivery via ISOTanks, while others opt for drums paired with wooden pallets for easier handling. These choices impact logistics but don’t alter cyclopentane’s core performance—provided the material remains uncontaminated and stable during transit.

Why Cyclopentane Stays Relevant

Cyclopentane’s widespread adoption isn’t just about meeting regulations—it’s about reliability. It delivers consistent insulation performance, helping refrigerators meet energy efficiency standards while keeping production costs manageable. For manufacturers, ensuring a steady supply of high-quality cyclopentane and fine-tuning their foaming processes are key to avoiding pitfalls and delivering top-tier products.

Conclusion

Cyclopentane may not grab headlines, but its role in refrigerator manufacturing is indispensable. With 95% purity as a proven benchmark, the focus for producers shifts to quality control, process optimization, and logistics. By mastering these elements, the industry ensures that this humble hydrocarbon continues to keep our food cold—and our planet a little greener.

Dimethyl Disulfide (DMDS): Catalyst Sulfiding and Advantages

Dimethyl Disulfide (DMDS): Catalyst Sulfiding and Advantages

Expandable Polystyrene and Pentane: An Introduction

Expandable polystyrene (EPS) is a type of thermoplastic foam that can be expanded by heating to form various shapes and sizes of products. EPS is composed of polystyrene beads or granules that contain a blowing agent and other additives. The most commonly used blowing agent for EPS is pentane, a low-boiling hydrocarbon that can generate gas bubbles when heated.

EPS has many advantages, such as low density, good thermal insulation, sound absorption, shock resistance, water resistance, acid and alkali resistance, etc. EPS is widely used in packaging, insulation, food containers, furniture, appliances, and automotive industries.

Pentane is a colorless, flammable, and volatile liquid that belongs to the alkane family. Pentane has three isomers: n-pentane, isopentane, and neopentane. Pentane is mainly used as a solvent, a fuel, and a blowing agent for EPS and other foams.

The global production of pentane is dominated by a few leading companies, such as Shell, ExxonMobil, Chevron, BP, Junyuan Petroleum Group and Total. These companies have advanced technologies, large-scale facilities, and extensive distribution networks to meet the growing demand for pentane, especially in the emerging markets of Asia and Africa.

n-Pentane, Isopentane and Cyclopentane in flasks

How to Choose n-Pentane, Isopentane and Cyclopenane

Choosing between n-Pentane, Isopentane and Cyclopenane depends on the intended use. Here are some general differences between them:

  • Pentane is a colorless, volatile liquid, mainly used for chemical experiments, solvent and solvent mixture preparation, and also an important raw material in the petroleum industry.
  • When buying pentane, you should pay attention to the following aspects:
    • Purity: The higher the purity of pentane, the better its performance and quality, but the higher the price. According to different uses, you can choose different purity grades, such as AR, CP, GCS, GR, HPLC, agricultural residue grade, etc.
    • Packaging: Pentane is a flammable liquid and should be packed and stored in suitable sealed containers to prevent leakage and fire. Generally speaking, the packaging specifications of pentane are 200L steel drums and ISO tank containers.
    • Price: The price of pentane is affected by many factors such as market supply and demand, raw material cost, transportation cost, etc., generally ranging from hundreds of USD to thousands of USD. When buying, you should compare the quotations of different manufacturers and channels, and choose products with high cost performance.
    • Manufacturer: There are many manufacturers of pentane, and there are great differences in production scale, technology level, product quality, etc. You should fully understand the qualifications, reputation, after-sales service, etc. of the manufacturers when buying. You can choose regular, professional and reliable manufacturers through the Internet, industry associations, peer recommendations, etc.
n-Pentane, Isopentane and Cyclopentane in flasks
Cyclopentane

The facts about Cyclopentane

Many manufacturers will be using a new, more environmentally friendly insulation material, called cyclopentane, in the manufacture of select refrigerators and freezers. Cyclopentane is a blowing agent for the polyurethane foams that are used to insulate refrigerators and freezers. Unlike some other chemicals used to insulate refrigerators, cyclopentane does not contain hydro-fluorocarbons (HFCs). Using cyclopentane results in significant reductions in equivalent CO2 emissions. The most common foam-blowing agents currently used in the U.S. are R134a and R245fa. These industry-standard insulations can have a global warming potential (GWP) as high as 1300 (134a) and 950 (245a). In contrast, the foam-blowing agent cyclopentane has a GWP of approximately 10. When it comes to GWPs, the lower the number is, the better it is for the environment, so cyclopentane is clearly the more environmentally friendly choice. Cyclopentane increases the efficiency of the insulation foam by approximately 4 percent over the R134a foam currently used in most refrigeration products. Cyclopentane has been very popular as a blowing agent in Europe since the early 1990s, but the cost of retrofitting existing production facilities and the lack of U.S. regulations restricting the use of HFCs has delayed implementation in the U.S. However, there are other manufacturers currently selling refrigerators in the U.S. that use cyclopentane. Compared to other insulating foams, cyclopentane is competitively priced and relatively easy to produce. Like many gases, in its pure form, cyclopentane is a highly evaporative and flammable material. However once foamed, the unit is no more hazardous than a unit foamed with other blowing agents. As with any of our manufacturing processes, we’ve integrated a wide variety of redundant engineering and operational safeguards. To learn more about cyclopentane, click here.

 Common questions about cyclopentane

Q: What is this new material being used in the foam insulation?
A: The new material is called cyclopentane, a highly evaporative gas that is used to apply the foam insulations in refrigeration units. 

Q: What is cyclopentane?
A: Cyclopentane is a blowing agent for the polyurethane foams that are used to insulate refrigerators and freezers. 

Q: What are the benefits of using cyclopentane instead of other materials?
A: From an environmental perspective, unlike some other chemicals used to insulate refrigerators, cyclopentane does not contain hydro-fluorocarbons (HFCs). Using cyclopentane results in significant reductions in equivalent CO2 emissions. 

Q: What foam-blowing agents are most commonly used in the U.S.? How is cyclopentane different?
A: The most common foam-blowing agents in the U.S. right now are R134a and R245fa. These two industry-standard insulations can have a global warming potential (GWP) as high as 1300 (134a) and 950 (245a). Comparatively, the foam-blowing agent cyclopentane has a GWP of approximately 10. When it comes to GWPs, the lower the number is, the less adverse impact on the environment, so cyclopentane is clearly a better choice. 

Q: Are there significant insulating advantages, as well?
A: Yes, cyclopentane is approximately 4 percent more efficient than the R134a foam we currently use in most of our products. 

Q: Do other refrigerators available in the U.S. market use cyclopentane?
A: There are other manufacturers currently selling refrigerators in the U.S. that use cyclopentane. 

Q: Why hasn’t cyclopentane caught on in the United States?
A: It has been very popular as a blowing agent in Europe since the early 1990s, but the cost of retrofitting existing production facilities and the lack of U.S. regulations restricting the use of HFC’s has delayed implementation in the U.S. 

Q: Is it more expensive than other insulating materials?
A: It is competitively priced and relatively easy to produce. 

Q: Is it dangerous?
A: Like many gases, in its pure form, cyclopentane is a highly evaporative and flammable material. However once foamed, the unit is no more hazardous than a unit foamed with other blowing agents. As with any of our manufacturing processes, we’ve integrated a wide variety of redundant engineering and operational safeguards.

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