Strong glue on a shaved-lined suit, it has not come off at all after 15 fishing trips and the torn spot has not opened again...you can apply thin layers, spread it, press the two edges of the torn area as if you want to join them and apply a little more glue again when the previous layer has dried if the previous one did not reach all the spots...it needs to be left to dry very well before using the suit and under no circumstances should you apply it to a wet suit.