Seal-Tight

The Most Cost-Effective, High-Performance Solution to Sealing Envelopes.

If You’re Using Any Other Sealing Solution You’re Paying Too Much!!!

With a mixing ratio of 4 oz Seal-Tight Concentrate to a gallon of water, Seal-Tight Concentrate will activate any water activated glue adhesion to ensure positive sealing and speeds dry time for quicker handling. A combination of active ingredients fights bacteria and algae growth providing a cleaner, more productive moistening system.