Hydrolysis Protection

Aging of Materials — A Widespread Challenge

The aging behavior of TPU-coated, waterproof zippers has been a significant focus of TIZIP’s product development for decades.

It has been mostly analyzed that TPU coating material failure, characterized by swelling, cracks, or delamination, is caused by aging (moisture, temperature, microorganisms, etc.), known as hydrolytic degradation processes. Despite various handling precautions contributing significantly to minimizing hydrolytic degradation, TIZIP has now developed a optimized TPU coating material that eliminates the typical aging behavior of TPU-coated zippers in the long term.

Solution — Advanced Hydrolysis Protected Material

Especially in the watersports sector, where waterproof zippers are exposed to constant moisture, the new hydrolysis protection represents a significant advantage compared to short-lived products with conventional material.

Advantages

Discover the great opportunities and outstanding advantages of TIZIP’s hydrolysis protected zipper, how it fits and significantly extends the lifespan of your next waterproof or airtight project.

HYDROLYSIS PROTECTION

Optimized TPU coating material with superior durability and resistance to hydrolysis and delamination.

1,0 BAR (14.5 PSI) WATERPROOF & AIRTIGHT

Depending on the configuration, TIZIP's MasterSeal #10 provides the highest level of water and airtightness for polymer zippers globally available. As for the SuperSeal the tightness level reaches 0,7 bar.

HF WELDING COMPLIANT WITH TPU (NOT PVC)

As usual, the hydrolysis protected zipper material can be welded to TPU coated fabrics. In contrast, PVC is not chemically compatible for directly welding with the Hydrolysis protected zipper. Therefore, PVC has to be glued to the Hydrolysis protected zipper material. As an option, an intermediate TPU layer can be used:

241126 Standard Program TPU Compatibility

IMPORTANT CHANGES

Updated Standard Zipper Program

On May-01 2024, the new «hydrolysis protection feature» has been launched to all MasterSeal #10 versions that are included in the standard zipper program. Brands, factories and consumers are able to visually identify the new «hydrolysis protection» marked on the zipper tape:
1) wording «HYDRO» on the end stop (backside).
2) embossed lines along the zipper tape (back & frontside).

241126 Standard Program Visual Identification

Non Standard Zippers

For MasterSeal #10 zippers not included in the standard program and for SuperSeal zippers the «hydrolysis protection» can be chosen as an option. ‌In the coming months, TIZIP will also be launching the «hydrolysis protection feature» as an option for the MasterSeal #6.

To learn more about this important improvement please get in contact with your TIZIP’s sales team.