Induction seals use electromagnetic energy to bond a foil liner to the rim of a bottle. Here’s how it typically works:

• The bottle is filled and capped with a closure containing a foil liner.
• An induction sealer creates an electromagnetic field, heating the foil liner.
• The heat melts a thin layer of polymer on the liner, which bonds to the bottle’s rim.
• Once cooled, the seal helps prevent leaks, tampering, and contamination.

This process is commonly used for food, beverage, and cosmetic packaging to help maintain product freshness and security.

Yes, many induction seals are designed for use with both plastic and glass bottles. However, it’s important to check that the specific liner and sealer you choose are compatible with glass. Some liners are formulated for better adhesion to glass surfaces. Always follow the manufacturer’s guidelines for best results, and test on a few bottles before full production to ensure a reliable seal.

The right size induction sealer depends on your bottle cap diameter and production needs. Most handheld induction sealers list a compatible cap size range, such as 20mm to 100mm. Measure your bottle caps and choose a machine that covers that range. For higher volume sealing, a continuous induction sealer might be more efficient. Always review product specifications to match your requirements.

Induction seals are generally single-use. Once the seal is broken or removed, it can’t be reapplied to create the same secure bond. This tamper-evident feature helps protect product integrity. If you need to reseal a bottle after opening, consider using a new cap or a different closure method, as the original induction seal won’t provide the same protection once opened.

To use a handheld induction sealer safely:

1. Read the user manual thoroughly before operation.
2. Wear appropriate safety gear, such as heat-resistant gloves if recommended.
3. Ensure the work area is dry and free from flammable materials.
4. Set the power and time according to the bottle and cap size.
5. Hold the sealer over the cap as directed, avoiding direct contact with the heated surface.

Always unplug the device when not in use and keep it out of reach of children. Following these steps can help reduce risks and improve sealing results.