Employment

• wetsuits
• water sports clothing
• curtains and covers
• Protective, leisure, safety, and industrial clothing (gas and chemical agents)
• Containers for electronic instruments, documents, machinery and transport equipment
• Inflatable objects and games, advertising balloons, etc.
• Bags and backpacks for everyday use, for outdoor, cycling, sailing, mountaineering and the like

Estate

The hinge withstands (laboratory test) up to 700 mbar of pressure (air), ends included.
The slider snaps tightly into the latch seat.
Avoid excessive flexing of the hinge!

Dust or sand

The hinge is highly resistant to damage caused by dust or sand; however, in the presence of dust or sand, it is suggested that the hinge be cleaned with liquid soap and water or other mild detergents.
Dust grains, which are present in the spiral profile, may affect the watertight seal.
If the hinge is used to protect sensitive materials, frequent cleaning of the hinge and thorough inspection before each use is essential.

Lubrication

No hinge is lubricated beforehand. However, lubrication is essential to maintain the ease of use and perfect fit of the chain.
After installing the hinge to the product, it is recommended that the entire chain be lubricated and the slider run from end to end, at least 5 times in both directions.
“Acid free” lubricants, greases and oils can be used.
Initial lubrication on the entire chain is essential.
If the spiral appears dry, the user should lubricate the hinge periodically (approximately every 10 uses).
It is recommended that the user consult the instructions and use the lubricant supplied with each hinge.
Lubrication of the outer surfaces, allows for better handling of the slider.

Operations

To ensure watertightness, the hinge in moving the slider requires slightly more force than that used for standard plastic hinges. In case the profile surface is lubricated or wet, the slider will be more manageable.

Stability

The performance of the hinge in terms of strength and durability is of a high standard. It withstands sudden weight loads, abrasion and withstands short bending and twisting.
Closed the hinge resists transverse pulls of 300 N/cm. In case of accidental opening due to excessive tension, return the slider to its initial position, reduce the tension on the spiral, and close the hinge again.
The hinge is not damaged by this procedure.
If accidental opening of the hinge occurs up to the lower end, the first 2 centimeters of spiral will have to be assembled by hand, before returning the slider to its initial position.

Versions

• closed ends / not divisible
• tape width 50mm / 70mm
• chain width 11mm
• terminal extensions 16 mm / 25 mm
• Zipper length: the zipper is measured including fasteners. To find the chain size subtract about 2 cm.

Testing

The waterproof capacity of the zipper is tested by arranging the zipper on a horizontal rectangular frame.
The inner part of the zipper is submerged while the outer part is pressurized with air.
The test is passed if no air bubbles are evident for at least 20 seconds.
Sample tests are carried out during production in each batch.

Endurance testing

• UV RAYS: Very good
• MICROBI: Satisfactory
• PETROL AND OILS: Very good
• HYDROLISIS (NORMAL TEMPERATURE): Good
• HYDROLYSIS (EXTREME AND WET TEMPERATURE): Sufficient
• TEMPERATURE RANGE: -30°C / +80°C
• LIGHT ACIDS AND ALKALI (NORMAL TEMPERATURE): Good

FAQ – FREQUENTLY ASKED QUESTIONS

HOW TO CHOOSE THE RIGHT SIZE?