Rad Glue™ Radiator Repair two-part epoxy tubes and metal spatula centered in a front-facing studio shot; mixed gray putty on a small tray with visible packaging text showing Rad Glue™ and stating repair for aluminum, brass, copper and steel and heat resistance to 350°F (177°C), presented for DIY radiator leak repairs and often used for small metal coolant-line patching.
Rad Glue™
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Rad Glue™

Key item features

  • Permanent Leak Repair: Two-part epoxy adhesive designed for automotive cooling systems, stopping leaks on aluminum, brass, copper, steel, plastic, and composite materials.
  • High-Temperature Resistance: Creates a flexible, rubber-like seal that withstands temperatures up to 300F (149C).
  • Chemical and Water Resistance: Resists chemicals, water, and thermal expansion.
  • Fast Setting Time: Sets in under 10 minutes with a full cure in 24 hours.
  • Easy Application: Mix equal parts and spread over the cleaned leak area for a strong bond.
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Current price is $25.99
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