Quality Park Dab-N-Seal Envelope Moistener with Adhesive, 50ML Bottle, 4 Pack (46071) DabNSeal convenient spill proof bottles safety secure envelopes or any other paper products. Features a fast drying formula with a no-clog spring-valve applicator. DabNSeal conforms to ASTM D-4236, is nonflammable and non-toxic. A 50ML bottles secures 1500 envelopes