There is a canned product called Zoosh, it pumps a liquid solution into the tyre and re inflates it. Supposed to distribute inside the tyre and plug leaks as the wheel turns. Suggested that this temporary repair is fixed properly within 50? miles.
I used a can of this stuff when cruising WA in 1974, picked up a screw on the road near Karratha, but didn't repair the tyre properly until I reached Carnarvon, almost 1000Km down the road.
Its a bit messy to clean up inside tyre and rim afterwards, but washes out with water.
Not sure if the product is still available, tho...I purchased mine from a servo. Was a bright blue can with yellow signage, about the size of a can of flyspray