Finding the Sweet Spot: How to Optimise Coat Weight in Hot Melt Carton Sealing

In the world of carton sealing, hot melt adhesives are relied on for their speed, strength, and reliability. But there’s one factor that can make or break both cost and performance: coat weight.

Apply too much adhesive, and you’re wasting money, slowing down lines, and creating stringing or mess. Apply too little, and you risk supermarket “pop-opens,” product damage, and costly returns.

The challenge is finding the sweet spot — the minimum amount of adhesive needed to deliver strong, consistent bonds every time.

In our latest whitepaper, What Is a Good Coat Weight When Using Hot Melt to Seal Cartons?, we cover:

• What coat weight means and how it’s measured

• Typical ranges for different packaging applications

• Factors that influence the right coat weight (from board type to line speed)

• Real-world examples showing adhesive savings of up to 57%

Whether you’re running pizza cartons, quiche packs, wraparound cases, or outer cases, optimising coat weight could mean lower costs, cleaner packs, and greater sustainability — without compromising reliability.

Request the full whitepaper using the form below to discover how much your operation could save.