Seals

At Calaso, we offer pressure-sensitive seals in a range of sizes, from 30 to 87 mm in diameter. These seals are designed to adhere to the rim of a jar, providing a visible indication if the packaging has been opened.

Pressure-sensitive seals are suitable for dry goods such as powders, spices or herbs. Each seal is printed with the message “Sealed for your protection,” reassuring end users and helping to preserve product integrity.

All quantities are rounded to the number of pieces per safe packs.

Pressure sensitive seal, 37mm, white, tabs, black text (JUN100/120), only applicable for dry goods

Pressure sensitive seal, 38mm, white, black text (Lime 30), only applicable for dry goods

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Pressure sensitive seal, 49mm, white, black text (Bryn 30), only applicable for dry goods

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Pressure sensitive seal, 54mm, white, black text (Violette 200), only applicable for dry goods

Pressure sensitive seal, 54mm, white, black text (Viola/Violette 200), only applicable for dry goods

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Pressure sensitive seal, 45mm, white, black text (Viola/Violette 100), only applicable for dry goods

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Pressure sensitive seal, 72mm, white, black text (Bryn 100), only applicable for dry goods

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Pressure sensitive seal, 39mm, white, black text (Bryn 15), only applicable for dry goods

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Pressure sensitive seal, 50mm, white, black text (Viola/Violette 150), only applicable for dry goods

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Pressure sensitive seal, 57mm, white, black text (Bryn 50), only applicable for dry goods

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Pressure sensitive seal, 87mm, white, black text (Bryn 200), only applicable for dry goods

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Pressure sensitive seal, 68mm, white, black text (Viola/Violette 250), only applicable for dry goods

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Explore Our Pressure Sensitive Seals

Looking for reliable seals that offer protection and peace of mind? At Calaso, we offer pressure sensitive seals designed specifically for glass jars, making them ideal for packaging dry goods such as powders, herbs, and spices. Available in diameters from 38 mm to 87 mm, our seals help preserve product integrity while providing visible tamper evidence.

Why Choose Tamper-Evident Seals

Pressure sensitive seals offer a secure closure that clearly shows whether a product has been opened. This helps maintain product quality and builds consumer trust, an essential feature for safety-conscious brands. The adhesive design ensures a tight seal without requiring heat induction or additional equipment.

Technical Specifications

Our seals are made for dry, non-liquid products and feature the printed message “Sealed for your protection” in black text on a white surface for clear visibility. Designed to fit standard neck finishes, they match perfectly with Calaso’s range of glass jars. Simply choose the diameter that corresponds with your jar’s opening.

Fast and Flexible Ordering

With stock on hand and efficient fulfilment, Calaso ensures fast and reliable delivery. Whether you're sourcing a small batch or a larger volume, we support businesses of all sizes with flexible order options and responsive service.

Choosing the Right Seal

To guarantee a proper fit, the seal diameter must match the neck opening of your jar. For example, in the GPI/GCMI system, 48/400 means 48 mm neck diameter and 400 refers to thread height and style. You’ll find matching product information on each seal page, along with compatible jars listed below.

Built-In Tamper Protection

Once applied, the seal adheres firmly to the rim of the jar and cannot be resealed after opening. This ensures clear visual confirmation of first use, ideal for maintaining product safety in retail and e-commerce environments.

Need Expert Support?

Have a question about sizing or compatibility? Our team is happy to help with expert advice tailored to your product and packaging needs.

Find Your Match

Click on any seal to view detailed product information. Scroll down to see all matching glass jars, making it easy to build a secure and cohesive packaging solution.