Demand is up for heat seal adhesives and barrier coatings on paper packaging: form-fill-seal, stand-up pouches, and single-use food packs. These coatings are designed for repulpable paper structures; test your structure.
Why run them together
The hard part is barrier and heat seal without a multi-layer plastic stack (PE, EVOH, PET) that cannot be separated at end of life. The barrier coating holds out water, moisture vapor, oil, and grease. The heat seal coating is coated and dried now, and heat reactivates it to form the bond later, in-line or offline.
Water-based heat seal and barrier coatings can replace a thicker extruded polyolefin layer, often at a lower coat weight.
What to check
Paper usually needs a double bump so the film is continuous and pin-hole free. Grade and coat weight depend on smoothness, porosity, and holdout. Cobb, dye stain, oil/grease resistance, MVTR, and OTR are the checks. Heat seals are sensitive to substrate and sealing conditions.
Where they run
- Form-fill-seal and stand-up pouches
- Food and flexible packaging
- Yogurt lidding and blister packs
- Sugar and flour bags
- Fast-food carton board
- Protective wraps
Pick the line
Heat Seal Adhesives
Hot melt, water-based, and solvent heat seal, plus heat seal films and tapes. Coat now, activate later.
View heat sealBarrier Coatings
100% water-based coatings for paper, board, and corrugated. Water, moisture vapor, oil, and grease holdout.
View barrier coatingsHeat seal and barrier coatings FAQ
Running paper packaging that needs barrier and heat seal? Each line has its own buyer FAQ: stock, coat weight, seal temp, and how to get a sample.
Heat seal adhesive FAQ · Barrier coatings FAQ · Call 800-249-0337 for a match.
Read before you run
Heat seal adhesives and barrier coatings for paper · How to select heat seal coatings for lidding · Barrier coatings for paper: moisture, OTR, oil, grease resistant · How to test paper and board for grease resistance using test kit solutions
Send board samples for a drawdown. Call 800-249-0337 for SDS, TDS, and activation temperature.
Featured product: 9169-HS (water-based heat seal for paper packaging): typically 2.4 lbf/in bond on recycled paper to paper. Passed independent lab recyclability testing in tested paper structures. Results depend on your full structure, including paper, inks, coat weight and sealing conditions, so test it on your own line before use. We'll send a sample and help you plan the trial. Call for a sample: 800-249-0337