Starbrite Antifreeze -200 Gallon

Starbrite Sea Safe Premium Marine Antifreeze -200 Concentrate (Gallon)

Engineered for extreme conditions, Starbrite Sea Safe Marine Antifreeze -200 protects marine engines, freshwater, and sanitation systems down to -200°F (-129°C). Made with non-toxic, USP-grade ingredients and zero alcohol, it maintains a stable mix with less evaporation risk. The blue dye makes flow easy to track during winterization, while corrosion inhibitors guard against damage to aluminum, copper, brass, and solder. Safe for rubber seals and hoses, this antifreeze can be used full-strength or diluted as needed, just follow the label. Perfect for seasonal prep, it offers reliable freeze protection without compromising safety or performance.

With Starbrite antifreeze you’ll get burst protection to -200°F (-129°C) and freeze protection within a range of -98°F to -103°F (-72°C to -75°C). Most PG refractometers and/or hydrometers will not provide freeze point readings below -70°F.

Features:

Ready-to-use, or may be diluted

Safe for all engines including aluminum.

Non-toxic virgin propylene glycol formula.

Provides copper burst protection down to -200F.

Contains corrosion inhibitors to protect all metal engine components and seals.

The most effective and safest way to protect all marine engines from freeze-up damage during winter storage.

Dyed in bright color for easy blow-through visibility

AntiFreeze Dilution Chart:

Undiluted

2 Pts Solution / 1 Pt   Water

Item

Copper Burst

PVC Burst

Freeze Protection

Copper Burst

PVC Burst

Freeze Protection

Wintertech

-50°F

-10°F

+17F

n/a

n/a

n/a

-50

-50°F

-10°F

+12°F

n/a

n/a

n/a

-100

-100°F

-80°F

-60°F

-72°F

-50°F

-6°F

-200

-200°F

-150°F

-100°F

-120°F

-90°F

-80°F

1 Pt Solution / 1 Pt   Water

1 Pt Solution / 2 Pts   Water

Item

Copper Burst

PVC Burst

Freeze Protection

Copper Burst

PVC Burst

Freeze Protection

Wintertech

n/a

n/a

n/a

n/a

n/a

n/a

-50

n/a

n/a

n/a

n/a

n/a

n/a

-100

-54°F

-20°F

+9°F

n/a

n/a

n/a

-200

-86°F

-66°F

-28°F

-62°F

-30°F

+5°F

Frequently Asked Questions

• What is Starbrite Sea Safe Premium Marine Antifreeze -200 Concentrate used for? Starbrite Sea Safe Premium Marine Antifreeze -200 Concentrate is designed to protect marine engines, freshwater systems, and sanitation systems from freezing during winter storage. It provides burst protection to -200°F (-129°C) when used undiluted and contains corrosion inhibitors to help protect metal engine components and seals.
• What temperature protection does Starbrite Sea Safe Marine Antifreeze -200 provide? When used undiluted, Starbrite Sea Safe Marine Antifreeze -200 provides burst protection to -200°F (-129°C) and freeze protection within a range of -98°F to -103°F (-72°C to -75°C). Most PG refractometers and hydrometers will not provide freeze point readings below -70°F.
• Can Starbrite Sea Safe Marine Antifreeze -200 be diluted? Yes. Starbrite Sea Safe Marine Antifreeze -200 can be used full-strength or diluted. The supplied dilution chart lists protection levels for several solution-to-water ratios, including 2 parts solution to 1 part water, 1 part solution to 1 part water, and 1 part solution to 2 parts water. Follow the product label for the appropriate dilution.
• Is Starbrite Sea Safe Marine Antifreeze -200 safe for marine engines? Yes. The product is formulated to protect marine engines, including aluminum engines. Its corrosion inhibitors help protect aluminum, copper, brass, solder, and other metal engine components and seals. The formula is also identified as safe for rubber seals and hoses. Is Starbrite Sea Safe Marine Antifreeze -20…