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Re: CRC Permanent Metallic Block and Radiator Seal???
I agree with the last post, the sealers are temporary in nature, they may last a few weeks or a few months. Eventually the part that is being sealed will continue to deteriorate until the sealer can no longer patch them .
The basic little bottles work okay, but the stuff in big cans, (it looks like a thick grey milkshake) work very well..................for a while.
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