Holts Radweld 250ml

Product code: HOLRW2R

In Stock

GBP new

£3.99

£3.33 ex. VAT

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Holts Radweld – 250ml

Part Number: HOLRW2R

Holts Radweld is a trusted DIY repair solution for sealing small leaks in car cooling systems. It circulates through the radiator, heater core, hoses, and joints, bonding internally to form a reliable, long-lasting seal. Safe to use with all coolant and antifreeze types, Radweld delivers permanent results without clogging or damaging the system.

Where to Use

• Radiators and heater cores
• Cooling system hoses and joints
• Small cracks, holes, and leaks in the cooling circuit

Instructions

• Ensure engine is cool before starting.
• Shake bottle thoroughly and pour Radweld into radiator or coolant reservoir.
• Top up with coolant if needed.
• Run engine for 10–15 minutes to circulate the sealant.
• Monitor leak site and coolant levels after use.

Benefits

• Stops radiator and hose leaks quickly
• Forms a permanent, reliable seal
• No clogging – safe for pumps and narrow channels
• Works with all coolant and antifreeze types
• Prevents future leaks by treating corrosion points

Product Characteristics

• Type: Cooling system leak sealant
• Format: 250ml bottle
• Compatibility: All vehicles and coolant types
• Effect: Seals leaks without clogging
• Application Time: 10–15 minutes circulation

Also Available

Radweld 125ml Speedflush 250ml

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