Heavy Duty Radiator Stop Leak

US Item #: 14109
Tech Docs
Tech Docs
Product Details:
VersaChem® Heavy Duty Radiator Stop Leak works faster and stops larger leaks than traditional “liquid stop leaks” and “non-metallic powdered stop leaks”. This advanced formulation contains pure copper particles with special hardening and sealing agents. Quick triple action seeks out leaks, fills and seals them with pure copper. Compared to most "liquid stop leaks" and "non-metallic powder stop leaks" which contain powder, wood, paper and other fibrous materials, plugging holes without hardening. VersaChem® Heavy Duty Radiator Stop Leak mixes with water and antifreeze mixtures. Use one vial forcooling system capacities up to 22 quarts (20.8 ltrs.).

Size: 0.75 oz (21g)

Units per case: 12

1Seals leaks with pure copper
2Prevents rust
3Mixes with Anti-freeze


1. With engine turned off and engine cool, remove radiator cap.
2. Start engine and run to operating temperature.
3. Be sure radiator is ALMOST full. 4. While engine is running, slowly pour the contents into the radiator. Run engine at fast idle until leaks stop. (If leaks persist, mechanical repairs are probably needed).
5. Replace radiator cap.

Contains: Linseed Meal, Copper
Precautionary Statements – Storage
Keep container tightly closed. Store in a well-ventilated place. Store
locked up.
Precautionary Statements – Disposal
Dispose of contents/container to an approved waste disposal plant.
Keep out of the reach of children.

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