Star Brite — Non-Toxic Premium Antifreeze -100°F — 55 Gal. Drum — 315G55
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Star Brite Non-Toxic Premium Antifreeze — -100°F — 55 Gal. Drum — 315G55
Star Brite 315G55 is a premium propylene glycol-based antifreeze formulated for winterization and freeze protection in marine and RV applications. The non-toxic, biodegradable formula protects to -100°F burst point and includes corrosion inhibitors safe for aluminum, cast iron, copper, brass, and rubber seals. The 55-gallon drum format is suited for marina operators, boatyards, and service facilities handling volume winterization.
Part Details
- Part Number: 315G55
- SKU: 74-315G55
- Brand: Star Brite
- Product Type: Non-Toxic Propylene Glycol Antifreeze
- Container Size: 55-gallon drum
- Color: Blue
- Freeze Protection (Burst): -100°F
- Formula: Non-toxic propylene glycol — safe for potable water systems
- Weight: Approx. 226.8 kg (500 lb) — full drum
Compatible Applications
- Marine inboard and sterndrive engines — winterization and storage freeze protection
- Marine outboard engines — cooling circuit winterization
- Marine raw-water cooling systems and through-hull plumbing
- Marine potable water systems and holding tanks — non-toxic formula approved for contact with drinking water lines
- RV fresh water and plumbing systems
- RV engine cooling systems during storage
- Marina and boatyard bulk winterization programs
Key Features
- -100°F burst protection: Protects cooling circuits and plumbing from freeze damage in extreme cold storage conditions
- Non-toxic formula: Propylene glycol base is safe for potable water systems and is environmentally preferable to ethylene glycol alternatives
- Aluminum safe: Corrosion inhibitors protect aluminum block engines, heat exchangers, and coolers commonly found in marine applications
- Multi-metal compatibility: Safe on cast iron, copper, brass, and rubber seals and hoses
- Ready to use: No dilution required for winterization use — apply directly to cooling circuits per engine manufacturer procedure
- Bulk drum format: 55-gallon supply suitable for high-volume seasonal service programs
Dimensions & Packaging
- Container: 55-gallon steel drum
- Approximate full drum weight: 226.8 kg / 500 lb
- UPC: 71247315554
Service & Usage Guidance
Use at the start of the winter storage season before temperatures drop. Flush the cooling circuit with fresh water, then run the antifreeze through the system per the engine manufacturer's winterization procedure until it flows from the exhaust outlet. For potable water systems, flush lines, then pump antifreeze through until it appears at all fixtures.
Related Products
- Star Brite 31200 Winter Safe -50°F Antifreeze — Gallon — single-unit option for smaller applications
- Star Brite 316G55 Non-Toxic Premium Antifreeze -200°F — 55 Gal. Drum — extreme cold protection for harsher climates
Parts Desk Insights
Best use case: Volume winterization of marine and RV cooling circuits and fresh water systems where a non-toxic, aluminum-safe antifreeze is required. The 55-gallon drum is the right choice for marinas, boatyards, and multi-vessel service operations handling seasonal freeze protection at scale.
Most common issue: Customers selecting the -50°F gallon product for systems requiring deeper freeze protection, or purchasing the drum without confirming they have appropriate dispensing equipment on hand. Confirm freeze-rating requirement and storage temperature for the intended application before ordering. A drum pump or transfer equipment is needed for dispensing.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.