12 best marine antifreeze
Marine antifreeze is a specialized type of antifreeze used in boats and other marine vehicles to protect their engines and cooling systems from freezing and overheating. Here's some information about marine antifreeze:
Purpose and Function: Marine antifreeze is primarily used to prevent the cooling systems in boat engines from freezing in cold temperatures. It also provides protection against overheating during the warmer months by effectively transferring heat away from the engine.
Formulation: Marine antifreeze is typically formulated with a mixture of water and propylene glycol or ethylene glycol. These chemicals have lower freezing points compared to water, allowing them to remain in a liquid state at lower temperatures.
Corrosion Prevention: Marine antifreeze often contains corrosion inhibitors to protect the various metal components in the engine's cooling system from rust and corrosion.These inhibitors help extend the life of the engine and cooling system.
Compatibility: Marine antifreeze is designed to be compatible with the materials commonly used in marine engines and cooling systems, such as aluminum, brass, copper, and rubber. It is important to use antifreeze that is compatible with the specific materials in the boat's cooling system.
Use and Application: Boat owners typically use marine antifreeze to winterize their vessels, ensuring that the cooling system is protected from freezing temperatures. It is also used during maintenance or repairs to flush and fill the cooling system.
Environmental Considerations: It's essential to use marine antifreeze that is environmentally friendly and non-toxic to aquatic life. This is particularly important in marine environments to minimize harm to the ecosystem in case of accidental leaks or spills.
Storage and Handling: Marine antifreeze should be stored in a cool, dry place away from direct sunlight and heat sources. It's crucial to follow proper handling and disposal procedures to ensure the safety of both the user and the environment.
Always follow the manufacturer's instructions and recommendations when using marine antifreeze to ensure the effective protection of your boat's engine and cooling system.
Below you can find our editor's choice of the best marine antifreeze on the marketProduct description
Antifreeze, RV/Marine, Container Size 1 Gallon, Size/Net Weight 8 1/2 lb., Pink, Boiling Point 370 F, Flash Point 225 F, 1. 038 Specific Gravity, For Use With RV/Marine Vehicles
- Auto & Truck Maintenance
- Country of manufacture: United States
- Manufacturer: SPLASH
User questions & answers
Question: | How many gallons for this price |
Answer: | One gal. |
Question: | Can i use rv antifreeze in an outdoor fountain. will it damage pump |
Answer: | It won’t damage an RV potable water pump so I see no reason it would harm your fountain pump. I just would not let pets or animals drink it even though it’s safe for our RV system. |
Question: | What are the contents? Does it contain any alcohol |
Answer: | I will have to look at the contents in on the bottle |
Question: | Is this same as Deicer? Can i spray it on my windshield to melt ice |
Answer: | I do not know. I use it to keep my sprayer from a freeze up. |
Product description
With Camco's DIY Boat Winterizer you can quickly and efficiently winterize inboard/outboard marine engines. The Do-It-Yourself winterizer allows flushing and preparation of boat engines for winter storage with just five gallons of antifreeze (sold separately) and your flusher. You save time and money season after season. It is great for technicians too. If using a front mounted raw water pump system, use Camco's Flush Adapter (sold separately).
- Perfect for Boat Winterization: This gravity flow system flushes, prepares and protects your boat engine for winter storage
- Compatibility: For inboard and outboard engines
- Kit Includes: Antifreeze tank with on/off valve, ball valve, winterizing tee and reinforced, clear hose with fittings
- Provides Enhanced Antifreeze Flow: High-flow, 5/8-inch hose with brass fittings improves the antifreeze flow to your engine
- Features: A reinforced clear hose for improved kink resistance
- Easy to Use: Requires only antifreeze and your flusher (not included); Uses 5-gallons of antifreeze (only use antifreeze approved for engine winterization)
User questions & answers
Question: | Do I need any special ear muffs?The one I have only has one hose attachment |
Answer: | We used the type that feeds water to both sides and found that holding them together with a bunggie cord/strap wrapped around them to keep them tight to the leg worked best. P.S. It took a long time for the thermostat to open allowing a full flow of water. We kept feeling the water temp to make sure that the thermostat was open. We then turned the water valve off and the RV antifreeze valve open. When there was about 1/8th to 1/4 0f the antifreeze left we fogged the engine until it stalled out. Once we knew/found out how to keep the muffs tight it was a very simple operation. Stan & Terry |
Question: | I bought the boat winterizing kit. The tank has a hole in it. Can I buy just the tank |
Answer: | Goop is good for sealing flexible things like that. A fresh tube thats not too thick is easier than old one. |
Question: | How long is the clear plastic hose that is included in the kit |
Answer: | The clear plastic hose (with water hose fittings) on the kit I purchased is 8 feet 3 inches long. Hope that helps. |
Question: | Do I still have to remove and replace the drain plugs in my Mercruiser 350 MPI prior to flushing for winterization or does this eliminate that step |
Answer: | If you follow instructions closely, you shouldn't have to remove drain plugs. You are supposed to run on muffs until the engine is up to temp and the T-Stat is opened up, then turn on the pink stuff and let it flow through COMPLETELY. I go past the point of just seeing antifreeze come out the exhaust, I dump the whole tank in since I will have to toss it anyway. If you don't do these steps completely, you could leave pockets of water in the system that freeze. Draining first would be added insurance against making a costly mistake. I prefer this method over draining alone because it's going to catch things gravity doesn't and residual water will at least mix with AF if it doesn't get completely blown out. |
Product description
Star brite -50°F (-46°C) Non-Toxic Antifreeze provides excellent cold weather and corrosion protection for drinking water systems and all engines. Its premium additive package prevents corrosion of aluminum, copper, brass and solder, but will not harm rubber, seals or hose materials. The 3X-died bright pink color provides excellent blow-through visibility. Formulated with virgin, non-toxic USP-grade ingredients. It contains no alcohols. This product is ready-to-use; do not dilute it. Star brite -50°F (-46°C) Non-Toxic Antifreeze will provide burst protection to -50°F (-46°C) and freeze protection within a range of +12°F to +16°F (-11°C to -9°C). When testing with a refractometer or hydrometer designed for use with propylene glycol, freeze point readings on the PG scale will range from +12°F to +16°F. Note: The burst point of PVC pipes used in most drinking water systems is about -10°F (-23°C). When winterizing water systems in regions where temperatures can fall below -10°F (-23°C), we recommend using Star brite -100°F (-73°C) Non-Toxic Antifreeze. Features Protects water systems & engines from freeze ups during storage. Use in boats, RVs, vacation homes, pools. Star brite -50°F (-46°C) Non-Toxic Antifreeze provides excellent cold weather and corrosion protection for drinking water systems and all engines. Its premium additive package prevents corrosion of aluminum, copper, brass and solder, but will not harm rubber, seals or hose materials. The 3X-died bright pink color provides excellent blow-through visibility. Formulated with virgin, non-toxic USP-grade ingredients. It contains no alcohols. This product is ready-to-use; do not dilute it.
- 6 Gallon Case Marine, RV, Pool Non Toxic Antifreeze
- Safe for copper, brass and all types of plastic.
- Non-toxic virgin propylene glycol formula.
- Protects water systems & engines from freeze ups during storage.
- Contains corrosion inhibitors to protect all metal engine components and seals.
User questions & answers
Question: | Is this sold as a single bottle that holds 6 gallons or as a case contain 6 bottles that each hold one gallon |
Answer: | six single one gallon bottles |
Question: | Can you use this as a coolant in an engine |
Answer: | This is winterizer for our boat. It is not the same as regular winter antifreeze |
Question: | Is this septic safe |
Answer: | Yes |
Question: | what is the ratio to use in a pool |
Answer: | That would require testing with a refractometer or hydrometer to get the correct mixture |
Product description
*** (This item sold as a pack of 6) ***
Easy going 50 propylene glycol base high grade antifreeze for complete freeze protection requirements. Protects recreational vehicles and summer cottages, and swimming pools from water system freeze up to 50 burst. Nontoxic and tasteless. Safe for fresh water systems. Inhibit fouling and corrosion while preventing algae growth. Helps lubricate pumps and valves throughout the system. No mixing required. 1 gallon.
- If You have the right tools You can complete any job!
- We have 8 warehouses in the U.S. so you will get your order Fast!
- Warehouse Locations: Cape Girardeau,MOMedina,OHLexington,SCMontgomery,NYDixon,ILWaco,TSWoodburn,ORMesquite,NV.
User questions & answers
Question: | Is this total of 6 gal. of antifreeze |
Answer: | 6 one gallon jugs |
Question: | Will this work in the harsh winters of Maine |
Answer: | This is rated for down to -50 degrees Fahrenheit. The coldest ever recorded in Maine was -48 in 1925. You should be fine. |
Question: | How safe is it to pour this stuff into the water tanks of a boat or RV? I thought antifreeze was poisonous |
Answer: | This is supposed to be non toxic and potable, however I would still flush it back out of the system before you use it again. |
Question: | Any ethel alcohol in this stuff? Looking for no alcohol. thanks |
Answer: | Just checked out in the garage and the label only mentioned propylene glycol. They suggest a several minute flush when removing from system. At that rate residue would be very tiny. The product worked for the process of protecting a cast iron pump last winter with great success. Will be protecting a couple of pumps this winter. |
Product description
Details: -50° Burst protection 1-Gallon Lubricates seals and gaskets Safe for marine engine blocks Safe for drinking water systems preparing for winter storage Used for pools, boats, RVs, and mobile homes Made from materials considered non-toxic by the FDA Will not harm steel, plastic, copper, or brass plumbing Greater protection for your vehicle’s system than “air blowing” lines
- -50° Burst protection
- Lubricates seals and gaskets
- Safe for marine engine blocks
- Made from materials considered non-toxic by the FDA
- Will not harm steel, plastic, copper, or brass plumbing
User questions & answers
Question: | Do you pour this solution into rv tanks or do drain, then add solution. if i drain tanks why do i need this product |
Answer: | I drain my tanks then blow out the lines then add the antifreeze and pump it thru the system!! |
Question: | Can you dilute it 50/50 like regular antifreeze and how much does it weigh per gallon |
Answer: | I didn't but it could be possible! |
Question: | Does it have any Alcohol |
Answer: | No |
Question: | Does this product contain alcohol |
Answer: | It worked as advertised!! |
Product description
Antifreeze Coolant, Blended, Size 1 gal., Size/Net Weight 1 gal., Pink, Plastic Bottle, Liquid, 8.2 pH, Not Recommended Dilution Ratio, Flash Point (F) 124 Degrees , Pour Point (F) 8.6 Degrees , 1.01 Specific Gravity, VOC Content 15 Percent, Dissolves Soluble, For Use With RV/Marine Vehicles, For All Heavy Duty Engines
- For Use With: Recreational Vehicles, Boats, Spas, Pools And Vacations Homes
- Features: Biodegradable And Non Toxic To Aquatic Life
User questions & answers
Question: | How many gallons does this treat |
Answer: | 1 Gal - RV / Marine Antifreeze |
Product description
Star brite Wintersafe -50°F (-46°C) Non-Toxic Antifreeze provides excellent cold weather and corrosion protection for drinking water systems and all engines at an attractive price. Its premium additive package prevents corrosion of aluminum, copper, brass and solder, but will not harm rubber, seals or hose materials. The 3X-dyed pink color provides excellent blow-through visibility. Formulated with virgin, non-toxic USP-grade ingredients. It contains no alcohols. This product is ready-to-use; do not dilute it.
Star brite Wintersafe -50°F (-46°C) Non-Toxic Antifreeze will provide burst protection to -50°F (-46°C) and freeze protection within a range of +14°F to +18°F (-10°C to -8°C). When testing with a refractometer or with a hydrometer designed for use with PG, freeze point readings on the PG scale will range from +14°F to +18°F. When winterizing water systems with plastic pipes in regions where temperatures can fall below -10°F (-23°C), we recommend using Star brite -100°F (-73°C) Non-Toxic Antifreeze.
Features- Safe for copper, brass and all types of plastic.
- Non-toxic virgin propylene glycol formula.
- Protects water systems & engines from freeze ups during storage.
- Contains corrosion inhibitors to protect all metal engine components and seals.
Contents: 6 gallons
- 6 Gallon Case Marine, RV, Pool Non Toxic Antifreeze
- Safe for copper, brass and all types of plastic.
- Non-toxic virgin propylene glycol formula.
- Protects water systems & engines from freeze ups during storage.
- Contains corrosion inhibitors to protect all metal engine components and seals.
Product description
Convenient, ready-to-use SPLASH RV and Marine Antifreeze is made with renewable resources and safe for incidental contact with people, pets, and wildlife. The premixed,readily biodegradable formula is nontoxic to aquatic life. Made for use in boats, spas, pools, recreational vehicles, and locations near water. RV/Marine Antifreeze, 1 gal.
- Color Pink Size 1 gal. MPN 619526 UPC 073926061950 Banned States GU.
Product description
SPLASH RV & Marine -50°F Antifreeze Winterize your recreational vehicles, boats, spas, hot tubs, pools, vacation homes, and campers with SPLASH non-ethylene antifreeze made with a plant-derived additive for -50°F burst protection. Biodegradable, non-toxic formula.
- Designed for use with recreational vehicles, boats, spas, pools, and vacation homes
- Safe for incidental contact with people, pets, and wildlife
- Readily biodegradable and non-toxic to aquatic life
- Formulated for -50°F burst protection
- Improves user safety when compared to ethylene glycol-based products
Product description
Brand new, genuine Mercury Marine / Mercruiser Anti Freeze. This is a factory original equipment part, not aftermarket.
- Ready-to-use, pre-mixed formula (deionized water)
- Will not cause gelling.
- Provides anti-freeze protection to -34F (-36C); DEX-COOL compatible.
- Provides warranty protection for all Mercury MerCruiser gasoline engines with closed cooling systems.
- Compatible with conventional anti-freeze. Dilution with conventional anti-freeze will reduce extended life benefits.
User questions & answers
Question: | what color is hte fluid |
Answer: | The color is red |
Product description
Camco's Antifreeze Concentrate is sold in a convenient 2-pack. It provides all the strength and protection of Camco’s regular antifreeze in an easy-to-measure bottle. You can store the concentrate until you need it, and once you do simply dilute it with water and use it the way you would any other antifreeze. Its non-toxic, non-hazardous formula is safe around pets and kids so you don't have to worry, and it’s even 100% biodegradable. Camco's Antifreeze Concentrate is great for winterizing your RV, boat, home or pool.
Set Contains:
36 oz bottles of concentrate
- 36 ounces of concentrate makes 1 gallon of antifreeze
- Great for use in RVs, boats, vacation homes and pools
- Burst protection down to -50F when properly diluted
- 100% biodegradable, GRAS, non-toxic, non-hazardous, safe with pets and kids
- Includes 2 gallon bottles
User questions & answers
Question: | Is this product ok for a septic tank |
Answer: | It is water soluble. It has not damaged our system. We use about 2 gallons, full strength, to winterize our cabin. We have a 500 gallon septic tank. We have been doing this for 8 years. |
Question: | how much antifreeze is needed to protect 50 gallons of water to temperature of -20 degrees |
Answer: | 16 ounces of antifreeze and 16 ounces of water protects to -50 below. At 50 below the mix may turn to slush but it will not freeze. If it is left over the summer the water may evaporate if it is not in an air tight system. Buy a gauge at the auto supply and adjust ratio accordingly or have someone due the math. |
Question: | Is it safe to flush into my home septic tank |
Answer: | I believe you can as this antifreeze is non toxic. However I have only used this antifreeze in my Aqua Hot system in my current motorhome. Generally, most RV's do not require much over a gallon to winterize so this would be a very small amount considering the size of most septic tanks and drain fields. Again, I purchased this for use in my hydronic boiler system and I am assuming the propylene glycol used in this is the same as used in other RV antifreeze on the market. |
Question: | What flavor is this ? The last one I bought tasted awful |
Answer: | It may seem like the OP is kidding around, but I doubt it. The reason being that most RV antifreeze is actually minty and leaved a god awful taste in your water supply for next season. If this stuff is just propylene glycol then it should simply be sweet with no other smell or taste. I don't own this stuff though so I don't know if it is tasteless. It SHOULD be since there is no alcohol in this mix. |
Product features
Antifreeze Concentrate
Camco’s RV Antifreeze Concentrate is sold in a convenient 2-pack. It provides all the strength and protection of Camco’s regular antifreeze in an easy-to-measure bottle. Simply dilute the concentrate with water and use it the way you would any other antifreeze. Its non-toxic, non-hazardous formula is safe around pets and kids and it is even 100% biodegradable. It has burst protection down to -50˚F for the cold winter months. Camco’s Antifreeze Concentrate is great for winterizing your RV, boat, home or pool and is safe with freshwater systems.
How it Works
In the winter, temperatures drop and put your pipes at risk. Since water expands as it freezes, pipes can burst and cause extensive damage to your RV, home or pool. Antifreeze works by lowering the freezing temperature of water past its normal 32˚F so that the water won’t freeze and thus won’t expand, keeping your plumbing safe from ice. Do not be alarmed if your antifreeze appears “slushy” when it is cold, this is normal and the antifreeze is still effective.
Most people winterize their freshwater systems when it starts getting cold in the fall or winter and then de-winterize the systems when it is warm again. The process of winterizing your freshwater system will vary based on make and model, so make sure to read your owner’s manual for specific instructions and tips on winterizing the system.
About Camco Manufacturing
Camco started in 1966 with one employee and one product. Today, over 40 years later, we have more than 350 employees, over 3,000 products and multiple manufacturing facilities in the USA and across the globe.
Competitive pricing, superior service, quality products and customer satisfaction are the foundations upon which Camco operates. Our friendly, knowledgeable customer service staff stands ready to assist our customers with any questions. At Camco, we take pride in meeting the ever changing demands of a challenging marketplace while serving you, our most valuable asset.
Product description
Fuel Treatment, Ethanol, Container Size 32 oz. , Size/Net Weight 32 oz. , Blue/Green, Bottle, Transparent, Treats 320 Gallons Dilution Ratio, Boiling Point 180 F, Flash Point 173 F, 0. 9 Specific Gravity, For Use With Ethanol Engines
- Auto & Truck Maintenance
- Country of manufacture: United States
- Manufacturer: STA-BIL
User questions & answers
Question: | How many gallons of fuel will one gallon og sta-bil treat |
Answer: | It depends. You use 1 oz per 5 gallons to store gas and 1 oz to 10 gallons in your gas tank to reduce ethanol and keep your fuel system clean. |
Question: | How well does it in motorcycles and cars |
Answer: | I use it in my cars and mowers w/out any issues. In fact, I think I get slightly better fuel mileage w/ this in the tank at the 1 oz/10 gal concentration. |
Question: | If Sta-Bil Marine removes the water from the tank/engine etc., where does it remove the water to? Where does the water go |
Answer: | Typically these types of treatments allow the water to pass thru the engine without harm. Might want to contact Sta-Bil tech for the actual process and tech behind it. |
Question: | Is there a shelf life on the product itself (not mixed with gas |
Answer: | Five years if unopened. If it is open and has significantly darkened or crystalized I would NOT use it.Probably best used by two years.WRL |
Product features
STA-BIL 360 Marine Ethanol Treatment & Fuel Stabilizer
STA-BIL 360 MARINE – use it with every fill up to help keep your engine running cleaner, leaner, smoother and stronger than ever.
1oz treats up to 10 gallons (38 liters) of fuel. Product does not contain alcohol. Perfect for use in all boats, jet skies, and other watersport engines.
Take Performance Over The Top
PREVENT ETHANOL DAMAGE: Protect your entire fuel system against damaging rust and corrosion caused by moisture and ethanol fuels. Provides a protective coating on ALL the metal parts of the entire fuel system and combustion chamber, even when the engine is not running.
MAXIMIZE FUEL ECONOMY: Burn fuel more completely and efficiently by preserving the fuel system and engine.
Take Performance Over The Top
INCREASE POWER: Strip away carbon buildup, gum and varnish that can inhibit engine performance, and get the most out of your fuel by burning it more completely. Bring back the power your engine once knew. Clear and prevent harmful gum, varnish and buildup throughout the combustion chamber and injectors.
Product benefit claims are effective when used as directed. STA-BIL outperforms competition.
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