This is probably a water glass (sodium silicate) solution, the shadetree mechanic last-chance stopgap repair for a leaking head gasket or crack in the waterjacket, before giving up and doing a proper repair.
Canadian Pep Mfg. is long gone, the sodium silicate solution is still around, sold as Block Seal and other names...
1 comment:
This one member of the miraculous goo family really does work, but the directions are poorly written. To achieve a repair that will outlast the original casting you have to vigorously shake not the goo can but the whole engine. I use a large-loads clothes dryer looted from a coin laundromat for this, makes it easy on all but the most humongous V8 engines.
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