{"product_id":"star-brite-propylene-glycol-boiler-antifreeze-1-gallon-premium-100-f-protection-corrosion-inhibitors","title":"STAR BRITE Propylene Glycol Boiler Antifreeze 1 Gallon — Premium -100°F Protection, Corrosion Inhibitors","description":"\u003cp\u003e\u003cstrong\u003eSTAR BRITE Premium -100° Boiler System Antifreeze is a propylene-glycol heating and cooling fluid formulated with corrosion inhibitors to protect boiler and hydronic systems down to -100°F when used full strength.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis one-gallon, ready-for-use solution from STAR BRITE is designed for closed-loop boilers, hydronic heaters, and solar thermal systems where safer handling and environmental considerations matter. Formulated without ethanol and manufactured in the United States, the product uses propylene glycol — a GRAS-rated ingredient — and includes additives to reduce corrosion and support efficient heat transfer. It may be diluted with distilled or deionized water to reach the frost protection needed for your application; verify concentrations with a calibrated propylene glycol refractometer.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this antifreeze protect my boiler and related components?\u003c\/h3\u003e\n\u003cp\u003eThe STAR BRITE formula contains premium corrosion inhibitors that form a protective film on metal surfaces, lowering oxidation and scale formation inside pumps, heat exchangers, and radiators. By preventing corrosion, the fluid helps maintain system efficiency and lowers long-term repair risk, especially in closed and solar systems where water chemistry can be critical.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eContains corrosion-inhibiting additives for metal protection\u003c\/li\u003e\n  \u003cli\u003eReduces scale and oxidation inside heat-transfer components\u003c\/li\u003e\n  \u003cli\u003eSupports consistent heat transfer for reliable system performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat freeze protection and thermal performance can I expect?\u003c\/h3\u003e\n\u003cp\u003eAt full strength, this propylene glycol solution provides burst protection down to -100°F (-73°C), suitable for extreme cold conditions. Dilution will change the freeze point, so use a refractometer to calculate the correct propylene glycol percentage for your location and system requirements to balance protection and viscosity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFull-strength protection to -100°F (-73°C)\u003c\/li\u003e\n  \u003cli\u003eDilutable to custom freeze points with distilled or deionized water\u003c\/li\u003e\n  \u003cli\u003eMaintains effective heat transfer for hydronic and boiler systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I use and measure this product safely in my heating system?\u003c\/h3\u003e\n\u003cp\u003eThis product is not a concentrate in the sense of needing chemical activation, but many installations require dilution; always follow your equipment manufacturer’s instructions. For accurate mixture and freeze-point verification, a calibrated propylene glycol coolant\/antifreeze refractometer is recommended, and only distilled or deionized water should be used to avoid mineral deposits.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFollow system manufacturer directions for fill and concentration\u003c\/li\u003e\n  \u003cli\u003eUse distilled or deionized water if dilution is required\u003c\/li\u003e\n  \u003cli\u003eCheck solution percentage with a calibrated PG refractometer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this product environmentally safer and where is it made?\u003c\/h3\u003e\n\u003cp\u003ePropylene glycol — the primary ingredient — is designated Generally Recognized As Safe (GRAS) by the FDA for certain food-contact contexts, making it a preferred choice when spills or leaks could lead to environmental exposure. STAR BRITE’s formula is ethanol-free and produced in the USA, aligning with buyers looking for domestic manufacture and lower volatility additives.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePropylene glycol base with GRAS recognition in defined uses\u003c\/li\u003e\n  \u003cli\u003eEthanol-free formulation to support system longevity\u003c\/li\u003e\n  \u003cli\u003eManufactured in the United States for quality control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: STAR BRITE Premium -100° Boiler System Antifreeze is intended for homeowners, RV and marine owners, HVAC technicians, and solar-thermal installers who need a reliable, lower-toxicity heat-transfer fluid for closed-loop boilers, hydronic heating, Aqua-Hot\/Hydro-Hot systems, and solar systems. If you require deep-freeze protection, corrosion inhibitors, and a US-made, ethanol-free formulation that can be adjusted to local freeze-point needs, this product is a practical choice. Always consult your system manual and test concentrations with appropriate tools before putting the system into service.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I dilute this antifreeze with tap water?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use distilled or deionized water for dilution to prevent mineral buildup; tap water can cause deposits and reduce protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this product protect against corrosion?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It contains premium corrosion inhibitors to protect internal boiler and hydronic components.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"STAR BRITE","offers":[{"title":"Default Title","offer_id":48079871869086,"sku":"B08RQGF4RX","price":66.28,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/star-brite-front-label-1g.jpg?v=1785773607","url":"https:\/\/northtrailauto.ca\/products\/star-brite-propylene-glycol-boiler-antifreeze-1-gallon-premium-100-f-protection-corrosion-inhibitors","provider":"North Trail Auto","version":"1.0","type":"link"}