News & Events
Why Glycol is Essential for Freeze Protection and System Efficiency
ComStar is your trusted producer and supplier of the highest quality glycols with many different packages that protects your system. In industrial operations, preventing freeze-related system failures is a constant challenge, especially during harsh winter months. Glycol freeze protection is crucial not only for preventing ice-related damage but also for maintaining system efficiency. This article explores glycol as an antifreeze agent, its applications in various industries, and recommendations for selecting and managing glycol solutions effectively. Understanding Glycol and Its Protective Role What Is Glycol? Glycol fluids are synthetic liquids designed for temperature control in industrial applications. They prevent freezing in systems that utilize water-based solutions. The two primary types of glycol include: Propylene Glycol – Preferred for its non-toxic and food-safe properties, making it suitable for environments where human safety is a concern. Ethylene Glycol – Offers superior thermal performance but is toxic, limiting its use to applications where human exposure is minimal. How Glycol Works as an Antifreeze Glycol lowers the freezing point of water, forming a solution that remains liquid even in subzero temperatures. This antifreeze property prevents ice formation within pipes, valves, and other components, ensuring continuous system operation during extreme cold. Glycol in Action: Freeze Protection in Industrial Systems The Science Behind Freeze Prevention Glycol's antifreeze capabilities are rooted in thermodynamics. By lowering the freezing point of water, glycol prevents the formation of ice crystals, which can clog piping and create mechanical stress. This helps maintain the fluidity of cooling media and prevents system breakdowns in freezing conditions. Applications in HVAC, Refrigeration, and Chillers Glycol-based solutions are widely used in various industries: HVAC Systems – Maintain stable internal temperatures in commercial and industrial buildings despite cold weather. Refrigeration Units – Provide critical freeze protection for perishable goods such as food, beverages, and pharmaceuticals. Chiller Systems – Enable precise temperature control, ensuring uninterrupted operation even in extreme cold. Selecting the Right Glycol for Your System Key Considerations Choosing the appropriate glycol depends on several factors: Type of Application – Propylene glycol is recommended for food-related industries, while ethylene glycol is suited for environments prioritizing thermal performance with minimal human exposure. Operating Environment – The severity of temperature fluctuations dictates the required glycol concentration. System Compatibility – Different glycol formulations interact with metals and plastics in various ways. Ensuring compatibility prevents corrosion and other issues. Optimizing the Glycol-to-Water Ratio The effectiveness of glycol depends on the correct dilution with water: Mild Conditions – A lower glycol concentration is sufficient to prevent freezing. Extreme Cold – A higher glycol-to-water ratio is necessary to achieve lower freezing points. Routine monitoring and adjustments help maintain the optimal balance for system efficiency. Maintaining Standardized Glycol in Operation Routine Testing and Monitoring Regular testing ensures the glycol solution remains effective: Concentration – Monitor the glycol-to-water ratio to prevent over- or under-dilution. pH Levels – Check for signs of corrosion or chemical degradation. Corrosion Inhibitors – Verify that inhibitors remain effective to protect system components. Flushing and Replacing Glycol Over time, glycol degrades, and contaminants accumulate. Establishing a regular flushing and replacement schedule helps: Remove Contaminants – Prevent impurities from affecting system performance. Restore Efficiency – Maintain antifreeze properties and extend equipment lifespan. Glycol Use Challenges and Considerations Dosing and Degradation Issues Even high-quality glycol solutions require careful management: Dosing – Over- or under-dosing can compromise freeze protection and heat transfer efficiency. Degradation – Glycol breaks down under extreme conditions, necessitating periodic replacement. Environmental and Disposal Concerns Managing glycol responsibly minimizes environmental impact: Compliance – Adhere to local environmental regulations for glycol disposal. Eco-Friendly Practices – Implement recycling or environmentally safe disposal methods to reduce ecological harm. Conclusion Glycol is more than just an antifreeze—it plays a vital role in protecting industrial systems from extreme temperatures. By lowering the freezing point of water, glycol ensures the reliable operation of HVAC systems, refrigeration units, and chillers. Selecting the right glycol type and maintaining the proper glycol-to-water ratio are essential for maximizing freeze protection and efficiency. Regular monitoring, testing, and maintenance contribute to sustained performance and extended equipment life. Proactive glycol management helps prevent costly freeze damage while ensuring system reliability and efficiency. As industries continue to face challenges from extreme weather, glycol remains an indispensable ally in maintaining uninterrupted operations.
Learn more
Metal Lock Black: The No-Heat Solution for Permanent Pipe/Fitting Bonds, The A2L Refrigerant Safety Solder
If you’ve ever joined metal pipes or fittings, you know the drill—heat, flux, solder, fumes. It’s messy, time-consuming, and comes with safety risks. But what if you could create a strong, permanent metal bond without the torch? ComStar’s Metal Lock Black is the no-heat solder that’s transforming HVAC repair, plumbing, and industrial metal bonding. It works on any metal, seals in minutes, and eliminates the hazards of flame-based joining methods. Why Choose a No-Heat Solder for Metal Pipes and Fittings? Traditional soldering and brazing require open flames, specialized tools, and fire safety protocols. This adds time, costs, and risk to every job. Metal Lock Black changes the game by delivering: Fast application – Bonds in minutes, no heating required. Safe, clean use – No flames, no fumes, no fire watcher required. Universal compatibility – Bonds copper, steel, aluminum, brass, and iron—matched or mismatched, threaded or unthreaded. Whether you’re working on a plumbing repair, HVAC system, or industrial assembly, this no-braze metal bonding solution gets the job done faster and safer. Perfect for A2L Refrigerant HVAC Repairs With the rise of A2L flammable refrigerants, many technicians are seeking safer, flame-free methods to join metal components in A2L A/C systems. Metal Lock Black is A2L-ready—making it ideal for: Air conditioning line repairs Refrigeration system maintenance Retrofits and new installations where brazing is risky or impractical Advantages of Metal Lock Black No Torch, No Solder, No Brazing – Avoid heat damage and safety hazards. Leak-Proof Sealing – Resists liquids, gases, and chemicals for long-term performance. Extreme Temperature Resistance – Performs from -65°F to +350°F without failure. High-Pressure Strength – Holds up to 2,200 PSI shear pressure. Easy Disassembly When Needed – Can be taken apart cleanly at 400°F. Meets Military Specs – Complies with Mil-S-46163A Type I Grade K and Mil-S-224723E Letter Grade CVV. Multi-Metal Compatibility – Works equally well on aluminum, copper, brass, black iron, and steel. Metal Pipe Bonding Without the Hassle The ability to bond metal pipes without brazing means no scheduling fire watchers, no lengthy system purges, and no risk of torch-related accidents. That’s why HVAC contractors, plumbers, and industrial techs are making the switch to Metal Lock Black. Don’t waste time with outdated methods—future-proof your repairs with the best no-heat solder for metal bonding. Available for direct purchase on our website, through a local distributor or retailer, or Amazon.
Learn more
Leak Bubbles Yellow: The Fastest Acting Gas Leak Detector
Gas leaks — whether involving natural gas, propane, HVAC systems, refrigeration lines, or industrial equipment — pose serious safety risks and can lead to costly downtime. Detecting them quickly, accurately, and safely is critical. That’s where ComStar’s Leak Bubbles Yellow comes in. An example of some fast-acting, large bubbles. With its large, long-lasting bubbles and fluorescent yellow formula, Leak Bubbles Yellow changes the game—delivering the industry’s longest lasting bubbles, visible for up to 7 days, making leak detection easier than ever. Why Choose Leak Bubbles Yellow for Leak Detection? Traditional liquid leak detection solutions can be inconsistent, bubbles breakdown too quickly, or fail in extreme temperatures. Leak Bubbles Yellow sets the industry standard by delivering: Fastest-acting detection – Produces instant, largest bubbles that keep generating over time, ensuring quicker leak identification, long-lasting visibility, and reduced downtime. LONGEST LASTING BUBBLE leak detector in the market by a mile! – Visible up to 7 days, making leak detection easier than ever. Clear visibility – Fluorescent yellow bubbles glow under fluorescent light, making leaks easy to spot. All-purpose performance – Detects natural gas, refrigeration gas, CO₂, nitrogen, and air. Micro-leak sensitivity – Finds even the smallest leaks, ensuring nothing gets overlooked. Temperature resilience – Works in both high and low temperature environments; will not freeze. Safe & environmentally friendly – Non-toxic, non-corrosive, and eco-safe. Made in the USA – Built to the highest quality standards. Leak Detection Without the Hassle An example of a more subtle leak after seven days. Leak Bubbles Yellow makes the job easier and safer by eliminating guesswork. Simply spray it on, and if there’s a leak, large or micro, large long-lasting bubbles and bubble clusters form instantly. That’s why it’s trusted by municipal gas suppliers, propane service companies, HVAC contractors, plumbers, refrigeration technicians, and industrial maintenance teams worldwide. Leak Bubbles Blue is also available. Available for direct purchase on our website, through local distributors and retailers, or on Amazon.
Learn more
Super Heat: The Only 8-in-1 Fuel Oil Treatment You'll Need
As a homeowner, the last thing you want to worry about is your heating system failing, especially when the temperature starts to drop. But deep inside your fuel oil or diesel tank, a battle is being waged. Over time, impurities like water, carbon, and sludge build up, silently chipping away at your system's efficiency and reliability. What does this mean for you? It means a less effective heater, higher fuel costs, and the risk of a complete breakdown when you need it most. From clogged nozzles to a frozen fuel line on a cold winter night, these hidden issues can cause major headaches. That’s where ComStar’s Super Heat comes in. For over 55 years, professionals have trusted Super Heat to stop fuel oil problems before they start. It’s not just a single-purpose additive; it’s the only 8-in-1 treatment your heating system will ever need, providing a complete solution in one simple application. One Pour, Eight Problems Solved Why juggle multiple products when one can do it all? Super Heat is expertly formulated to target every common issue lurking in your fuel tank. 1. Melts Ice for a Cleaner BurnWhen ice forms in fuel, it not onlydisrupts combustion and efficiency, it can shut the system down with ice clogged pipes. Super Heat melts existing ice within the tank and fuel lines, ensuring a consistent, cleaner burn. The result? No system shut down and more heat from every drop of fuel and smoother system performance all winter long. 2. Lowers Pour Point in Fuel TanksCold weather can cause heating oil to thicken, restricting flow to the burner. Super Heat lowers the fuel’s pour point, keeping it fluid even in freezing temperatures. Your system runs reliably without the risk of cold-weather shutdowns. 3. Controls Waxing and JellingWax crystals and fuel jelling can clog filters and lines, leading to system failure. Super Heat prevents this by breaking down wax formation before it becomes a problem—ensuring continuous, trouble-free fuel delivery. 4. Eliminates Water for Heating OilWater in your tank leads to corrosion, rust, and microbial growth. Super Heat’s advanced formula removes water from heating oil, protecting your tank and equipment from moisture damage while improving combustion quality. 5. Dissolves Sludge Build-Up in the TankOver time, sludge accumulates in fuel tanks, reducing efficiency and clogging lines. Super Heat dissolves and disperses these deposits, restoring your tank’s capacity and keeping your fuel system clean from the inside out. 6. Cleans Strainers, Filters, and NozzlesDeposits in strainers, filters, and nozzles restrict fuel flow and reduce system efficiency. Super Heat acts as a full-system cleaner, flushing away debris and buildup for smoother operation and consistent heat output. 7. Reduces Soot Buildup by 50%Heavy soot reduces heat transfer, uses more oil and increases maintenance costs. Super Heat improves combustion and cuts soot buildup by up to 50%, thereby lowering oil consumption, extending equipment life and reducing service intervals. 8. Reduces Water Buildup That Could Become A Bacteria Breeding GroundBacteria thrive where water and fuel meet, producing acids and sludge that damage tanks. By eliminating water, Super Heat destroys the potential environment for bacteria to grow—keeping your system cleaner and healthier year-round. The Easiest Maintenance You'll Ever Do Using Super Heat is as simple as it gets. Just add 16 ounces before the first oil delivery of the season and then add 8 ounces to your tank with each refill of 275 gallons of fuel. That’s it. With one easy step, you can eliminate problems related to cold weather, combustion efficiency, and internal buildup. Protect your investment and ensure your home stays warm all winter long. Trust the product that professionals have relied on for decades. Available for direct purchase on our website, through local distributors and retailers, or on Amazon.
Learn more