Starbrite −50°F (−46°C) Non-Toxic Antifreeze 3.79 L

€22.50

Starbrite −50°F (−46°C) Non-Toxic Antifreeze (3.79 L) is a ready-use, propylene glycol based winterising fluid for marine and potable water systems. It protects metal, plastic and rubber components from freeze damage and corrosion, is non-toxic, alcohol-free, and highly visible pink to ensure full system coverage.

SKU: ST-031400

Starbrite −50°F (−46°C) Non-Toxic Antifreeze 3.79 L – Marine & Potable Water Protection

Winter-grade propylene glycol antifreeze designed to protect marine water systems, engines and potable plumbing in Irish coastal conditions

Burst protection to **−50°F (−46°C)**; prevents freeze damage in water systems and engines.
Freeze point range approx **+12°F to +16°F (−11°C to −9°C)** when tested with PG scale refractometer/hydrometer.
Safe for metals used in marine engineering: aluminium, copper, brass and solder.
Compatible with plastics, rubber, seals & hose materials; does not damage flexible components.
Non-toxic, virgin USP-grade propylene glycol based; contains corrosion inhibitors; alcohol-free.
Bright pink 3-times dyed colour for excellent visibility (to confirm blow-through in plumbing or hoses).
Ready to use (do not dilute).
Volume: **3.79 litres (≈1 US gallon)**.

This Starbrite −50°F Non-Toxic Antifreeze is ideal for Irish mariners preparing for winter storage or time in freezing temperatures. It provides strong corrosion protection across marine engines and potable water systems, safeguarding metals like brass, copper and aluminium while also being safe for seals, hoses and plastics. Being non-toxic and ready-to-use, it’s especially suited for boats with drinking water plumbing, bilge lines or live-aboard use. Its vivid dye helps you visually confirm that it has flushed through all systems. In exposed Irish coastal environments and for boating on lakes or tidal zones where frost is a concern, this antifreeze delivers dependable freeze protection and long-term durability.