Applications
Airtight · Waterproof · Professional solutions across industries — O&O® airtight zippers deliver reliable sealing for equipment in every field
Airtight vacuum storage bag
The core technology of this airtight vacuum storage bag—the "airtight zipper" design—is designed for long-term airtightness. It utilizes a high-density TPU coating and a labyrinthine interlocking structure. When a pressure difference exists between the inside and outside, the external atmospheric pressure compresses the zipper's sealing flaps even tighter, creating a pressure-locking effect. To store a down comforter, simply zip it up to expel the air—no tools required. Even during the rainy season, humid air cannot penetrate. Store it under the bed or on top of a cabinet, and it will still be fluffy, dry, and odorless the following year. This is the peace of mind that physical-grade airtightness brings.
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Waterproof Cycling Bag
Beyond roll-top waterproof bags, watertight zippers allow for the first time a waterproof bag to offer quick opening and closing, high watertightness, a sleek design, and comfortable carrying. It encapsulates robust waterproof capabilities within a smooth zipper, while also boasting IP65 dust and water resistance.
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Airtight Waterproof Phone Pouch
The core technology of this waterproof phone pouch – the airtight zipper – essentially condenses a sophisticated watertight and airtight system into a single pull. It lacks complex locking mechanisms, but utilizes four principles – interlocking geometry, interference fit, water pressure self-locking, and material elasticity – to achieve absolute sealing against water molecules.
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Fishing pants
Fishing pants are a piece of equipment designed for prolonged immersion in water, enduring dynamic water pressure and body stretching. Their waterproofing core often lies in that unassuming airtight zipper at the chest or pocket. The fabric of these water pants is virtually impervious to water leakage; the only point of breach is an opening. How does an airtight zipper allow you to work for hours in waist-deep or even chest-deep water while remaining completely dry? The answer lies entirely in its sealing mechanism.
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Outdoor dustproof bags
The waterproof and dustproof performance of outdoor backpacks is not determined by the thickness of the fabric, but by the sealing ability of the weakest opening. Watertight zippers use four principles—multi-track interlocking, interference fit, pressure self-locking, and flexible follow-up—to turn the opening into a barrier that water and dust cannot overcome.
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Outdoor Cooler Bag
The insulation of outdoor cooler packs is never just about the thickness of the foam layer. If air leaks through the opening, even the best insulation is useless. The rubber-toothed airtight zipper, with its interference-locking zero-convection structure, low-thermal-conductivity plastic material, cold-resistant elasticity, and pressure-self-tightening, creates a "breathing" door for the cooler pack—allowing you to open it to retrieve your items while preventing even a single drop of cold air from escaping.
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Dry suits
Drysuits are the most demanding type of diving equipment in terms of airtightness. The inside of the drysuit must remain absolutely dry to allow the diver to maintain body temperature in frigid water. The largest opening on the entire drysuit is the long zipper at the chest or back. Here, the rubber-toothed, airtight zipper plays the role of the ultimate defense: it must remain completely waterproof under the water pressure at depths of tens of meters and during the diver's vigorous movements.
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Inflatable Lifeboats
When an inflatable lifeboat is fully inflated, the internal pressure on the hull constantly searches for its weakest point. This weak point is the opening for personnel and supplies to enter and exit. If the opening is made with a regular zipper, air pressure will hiss and leak from the gaps in the zipper teeth. When waves come in, water rushes in through the gaps, and the entire boat instantly loses buoyancy. A metal airtight zipper, specifically designed for extreme water conditions, transforms the soft hull opening into a rigid, sealed bulkhead under the dual impact of high-pressure air and raging waves. It doesn't use rubber teeth, but instead chooses metal—not for weight, but to achieve terrifying locking strength and indestructible mechanical stability. How does it achieve both airtightness and waterproofing? The secret lies in the precise cooperation between the metal teeth and the elastic sealing strip.
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