What is Heat Seal Strength?
Heat seal strength refers to the force required to separate two materials sealed together by heat and pressure. It’s a crucial property for flexible packaging, especially in food, pharmaceutical, and consumer goods industries. Proper seal strength ensures packages remain intact during transport, storage, and handling.

Why It Matters
If the seal is too weak, the package may burst or leak. If it’s too strong, it might damage the contents during opening. Therefore, optimizing heat seal strength is vital for product protection, shelf life, and consumer satisfaction.

Measuring Heat Seal Strength
Heat seal testers are used to evaluate seal integrity by applying a controlled force to sealed samples. This testing helps manufacturers maintain consistent quality, comply with standards, and improve packaging performance. Contact us at +91 9210 903 903 or info@prestogroup.com for premium quality testing instruments tailored to your needs.