Features:

• Specially formulated to stop cooling system leaks when antifreeze is present
• Ideal for stopping radiator leaks and sealing cracked blocks in sub-zero conditions
• Works best when cooling system has been thoroughly cleaned and flushed Ceramic Engine Seal
  Simply the best chemical sealer you can buy! Ceramic Engine Seal has saved the day for many an oval track and drag racer. Works equally well in aluminum or steel blocks and heads. If this won't seal it, you'll have to weld it! Does not work with antifreeze. Features:
• The best chemical sealer you can buy to stop cooling system leaks
• Works in cast iron or aluminum blocks
• Cooling system must be completely cleaned before use
• If this does not stop the leaks, find yourself a welder