Some tzitzis companies advertise that the knots never come undone. They put glue on the knots of the tzitzis so one never has to worry about fastening the nots. I heard someone say that this could be a problem because the glue in the end is mevatel the knot. Is this true?
R’ Vosner has ruled that there is no Halachic problem with putting glue on Tzitzis knots in order that they should not become separated or snapped.