Heat sealing is an efficient way to seal bags to keep products protected. Heat sealing creates an airtight and watertight seal that secures bag contents during transport and storage. This article explains what heat sealing is, the advantages of heat sealed bags, the best bag materials for heat sealing, and step-by-step instructions for heat sealing bags yourself.

What is Heat Sealing?

Heat sealing uses heat applicators to fuse bag material together, forming a tight seal. The heat melts the inner surfaces, binding them together as they cool. This creates a complete, durable closure without needing additional sealing materials.

Benefits of Heat Sealed Bags

Heat sealing bags offers several benefits:

• Airtight, watertight seals prevent contamination from moisture, dust, etc.
• Tough, protective enclosure secures contents during handling and shipping
• Flexible process works on bags of any size
• Finished look displays products attractively

Best Materials for Heat Sealing Bags

The best material for heat seal bags is low-density polyethylene (LDPE). LDPE melts at 320°F, enabling quick fusing and cooling. Other heat sealable materials include polyethylene and polypropylene. Check your bag supplier for heat seal compatibility.

How to Heat Seal Bags – Step-by-Step

Follow these key steps for professional heat sealing bag results:

• Obtain proper heat sealing equipment like an impulse sealer or heat gun
• Choose appropriate heat seal bags for your product
• Set sealer temp/timer based on bag material density
• Feed bag into equipment; heat melts & fuses inner surfaces
• Let seal cool so plastic contracts, tightening closure
• Trim off excess material with attached cutter (optional)
• For high-volume facilities, industrial heat sealing machines can handle sealing different bag sizes and materials efficiently.

Get High Quality Heat Seal Bags

For custom printed, durable and reliable heat seal bags, connect with Polysmarts Manufacturing. Our team can advise on optimal materials and develop custom solutions suited to your heat sealing processes and packaging needs.

Heat sealing bags creates an efficient, protective seal for products and contents. With quality heat seal bags and the right process, achieve professional-grade results sealing and securing your own bagged items and packages.