It is glue that I bought from Hobby People. It is for canopies, windshields and anything like that. It is water based. The bottle says it's " The World Best Canopy Glue " For fast drying (24 hours ) Not so fast! Drys clear, bonds canopies & plastic parts to almost anything, flexlble. Made by Pacer. The main reason I have it is because Hobby People is only one block from my house.