Just curious why you think the silicone is going to peel off .. I know seam seal tape will do that, but I have made tarps both ways and over 7 years have seen no evidence of the bonding breaking down.
This is also the prescribed method for fixing pin holes and such, just bond a patch around the hole ... of course to get to look right you need to put it between 2 surfaces and keep it flat while it sets up.
Brian
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