I'm curious if anyone here has used a product called AT-205 Re-Seal to stop engine or tranny leaks?

As some might know, the '55 recently had it's engine rebuilt and while that went incredibly well and the engine is now better than new, the old rope seal isn't and a leak persists...

I am told there is no newer "modern day" replacement seal available for the 265 so my choices seem rather limited... either put up with the leak OR find a product that will stop it.

Everything I have read in consumer reviews for this product are good (apparently it swells existing seals, even rope seals to stop leaks in engine, transmission, differential or even power steering) but if someone here has used AT-205 I'd prefer to hear it directly from them and how it worked for their engine leaks...

Thanks in advance for your responses...

It's a sin to crush old tin...
My 1955 Belair's Webshots Album
My 1937 Chevy Pickup's Webshots Album (now sold)
Stovebolt link to my 1937 Chevy 1/2-Ton Pickup (now sold)
Stovebolt link to my 1936 Chevy 1/2-Ton Pickup Truck (now sold)