Advice on sealer for insert after stripped water pump/timing cover bolt hole

MOPAROFFICIAL said
It never leaked. Never heard that either till now. Thanks, guess I got lucky or something
It was dry before filling it .

I only know because I was in the aircraft industry and we used Locktite for many applications. It will wash out in the presense of water/moisture. Once it sets it's waterproof as far as I know.