How to Select the Right Heat Shrink Band Size for Your Glass Jars and Bottles

Why Choosing the Right Heat Shrink Band Matters

If you’re packaging homemade treats, sauces, or beverages, ensuring a secure and professional seal is crucial. Heat shrink bands not only enhance the presentation of your glass jars and bottles but also provide a tamper-evident seal, keeping products fresh and safe. However, choosing the right size heat shrink band is key to achieving a snug and secure fit.

In this guide, we’ll walk you through how to determine the best heat shrink band size for your containers.

Understanding Heat Shrink Bands

Heat shrink bands are PVC or PET plastic sleeves that shrink when heat is applied, tightly conforming to the lid or cap of a jar or bottle. They are commonly used for:

• Kuih balang (traditional kuih containers)

• Sambal and sauce bottles

• Glass jars for jams, honey, and pickles

• Cosmetic and skincare containers

• Beverage bottles

Using heat shrink bands ensures a professional look, protects against leaks, and provides a tamper-proof seal that builds consumer trust.

How to Measure for the Correct Heat Shrink Band Size

To get the perfect fit, follow these steps:

1. Measure the Diameter of the Lid or Cap

The outer diameter (OD) is the measurement across the widest part of the lid or cap. This is a crucial factor in determining the right heat shrink band size.

How to Measure the Outer Diameter (OD)

• Use a measuring tape or caliper to measure across the center of the cap from one side to the other.

• Ensure the measurement is taken in millimeters (mm) for accuracy.

• Round up to the nearest available band size if the exact measurement is not listed.

For example, if your cap measures 50mm in diameter, refer to the available heat shrink band sizes to select the best fit.

2. Consider the Band Height

The height of the shrink band should cover the cap and slightly extend over the jar’s neck. Standard heights range from 25mm to 50mm, depending on the jar’s shape and how much coverage you want.

3. Check for Perforations (Tear Line)

Many shrink bands come with a tear line for easy removal by the customer. If you’re sealing food jars, tear-line heat shrink bands are recommended for convenience and compliance with safety standards.

Common Heat Shrink Band Sizes for Different Jars & Bottles

Here’s a quick reference guide to help you select the right size (sizing based on Malaysia Clay Art Lid Sealer) :

How to Apply Heat Shrink Bands

Once you have the correct size, applying heat shrink bands is easy:

1. Slide the shrink band over the cap so it extends slightly over the edges.

2. Use a heat gun or steam to evenly apply heat until the band shrinks tightly around the cap.

3. Allow it to cool, ensuring a smooth and secure fit.

4. Check the seal to confirm a professional, tamper-evident finish.

Where to Buy Heat Shrink Bands in Malaysia

Looking for high-quality heat shrink bands? Malaysia Clay Art offers a variety of tear-line heat shrink bands designed for different jar and bottle sizes. Our heat shrink bands ensure freshness, safety, and a professional presentation for your homemade products.

Conclusion

Choosing the right heat shrink band size is essential for effective product sealing and presentation. By measuring correctly and selecting the appropriate size, you can enhance your packaging while keeping your products secure. Whether you’re sealing kuih balang, sambal jars, or beverage bottles, heat shrink bands are a must-have for professional packaging.