The technical principle

The TIZIP RescueSeal is made from a strong, plastic coil zipper on a high strength fabric. Every coil half is safely embedded and secured in a plastic profile.

When the TIZIP RescueSeal is closed the sealing lips above and below the coil are compressed making a perfect seal. The entire plastic profile is highly abrasion resistant. The unique design prevents the slider from wearing down the sealing lips when the zipper is opened or closed.

The physical design of the TIZIP RescueSeal increases the seal strength when the pressure is raised or when cross tension is applied. Both actions lead to an increased mechanical pressure on the top sealing lip.

Stability

The TIZIP RescueSeal´s performance in terms of strength and durability is outstanding. It can take weight, it is abrasion resistant and it will survive short term sharp bending and twisting without separating.

Operating Force

The large red puller of the TIZIP RescueSeal allows comfortable operation even with neoprene gloves. A wet surface or lubricant on the outer flanges of the sealing profile reduces the pulling force greatly.

Dirt or Sand

The TIZIP RescueSeal is highly resistant to damage caused by dirt or sand. However if dirt or sand are present, the zipper should be cleaned with soap and water. Dirt particles can affect the sealing function if they get caught between the chain profiles. If the TIZIP RescueSeal closure is used to protect life or sensitive material, the sealing function and cleanness of the chain area should be double checked prior to every usage.

Tightness

The TIZIP RescueSeal E is pressure tested with 250 mbar air pressure, the TIZIP RescueSeal S is pressure tested with 700 mbar air pressure applied to the front surface including the end stop. The slider engages positively into the docking end. Heavy bending may cause leakage. Please try to avoid!

Testing

The sealing function of the TIZIP RescueSeal is tested by fastening the zipper in a straight rectangular frame, 3 cm wide, face down. Compressed air is applied to the front side of the zipper and water poured over the back until it is submersed. To pass the test no air bubbles may occur for a period of 20 seconds. Random testing is performed during the production of every batch.

However, in the event the TIZIP is over-stressed during closing, the chain may stay separated. In this case, simply move the slider back, reduce the cross tension, then reclose the zipper. The TIZIP will not be damaged by this procedure.

Resistance

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