Mixture of seven organic ingredients designed to permanently seal holes and cracks in radiators, water jackets, and cylinder heads. Just pour into the radiator while the engine is running, it seeks out holes, and swells shut as soon as it comes in contact with air. Will not re-dissolve, and draining or flushing will not affect the seal. On a card.
- Permanent Repairs for all car, truck, van, bus, and tractor radiators
- Will not clog or harm cooling system
- Permanent Seal
- Brand: "Perm-O-Seal"