About the product
- Permanently repairs leaks in gaskets, radiators, heater cores, intake manifolds, blocks, heads and freeze plugs
- Compatible with all types of antifreeze and no draining required
- Insta-Seal fixes both large and small leaks in plastic, aluminum and cast iron intakes, heads, blocks and radiators
- Insta-Seal will not void the manufacturer\'s
- Ceramic micro-fibers, copper and heat combine to \"weld\" both large and small cracks
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