STP | Radiator Sealer & Cooling System Leak Repair (300ml)

Safeguard your vehicle's engine against critical fluid loss and catastrophic overheating with the advanced STP Radiator Sealer. Formulated by the premier American automotive pioneer STP, this professional-grade cooling system sealer delivers a fast, highly dependable solution for unexpected failures. Over extended drive cycles, cooling networks can develop micro-cracks and minor radiator punctures that trigger coolant drops. STP’s high-tech formula cycles naturally with your active antifreeze and seals these dangerous leaks permanently to preserve fluid volume without building up internal restrictions.

Product Specifications:

• Brand: STP.

• Product Name: Radiator Sealer.

• Product Type: Cooling system sealing fluid and additive.

• Volume: 300 ml.

• Origin: Made in USA.

Product Benefits:

• Permanent Leak Sealing: Rapidly seals dangerous hairline cracks and micro-leaks in the radiator core and heater matrices.

• Guaranteed Clog-Free Formula: Advanced chemistry engineered to seal only at the leak site, ensuring 100% free circulation through tight thermostat lines.

• Universal Fluid Compatibility: Thoroughly safe and fully compatible with all types of radiators and colors of conventional or long-life antifreezes.

• Total Component Safety: Formulated to ensure excellent material compatibility, preventing drying or cracking of rubber cooling lines and gaskets.

Directions for Correct Application:

1. Run the engine until the coolant is warm (not hot) to ensure proper fluid integration.

2. Shake the container thoroughly and pour the entire 300ml bottle of STP Radiator Sealer directly into the cooling system.

3. Run the engine for approximately 10 minutes or drive a short distance to allow the chemical sealant to fully engage and plug the leak sites.

Important Note:

To prevent severe personal injury from pressurized boiling water or steam, never open the system while it is dangerously hot. One concentrated 300ml container is accurately measured to effectively treat standard passenger car cooling systems.

Secure high-efficiency radiator sealing and drive with absolute thermal assurance! Buy the 300ml STP Radiator Sealer today from Carboost store.