YKK List of Products and Services

PROSEAL® is a waterproof and airtight fastener that has received high praise in a wide range of fields, including airlocks that require airtightness. It is used in protective clothing such as space suits, chemical protective suits, diving suits, and survival suits, as well as in liquid transport tanks. 【Features】 ■ Highly regarded in a wide range of fields ■ Used in protective clothing such as space suits, chemical protective suits, diving suits, and survival suits, as well as in liquid transport tanks 【Ideal for customers who】 ■ Want a waterproof and airtight fastener that matches highly waterproof fabrics ■ Require waterproof and airtight applications but want easy opening and closing *For more details, please download the catalog or feel free to contact us. *PROSEAL is a registered trademark of YKK Corporation.

AQUASEAL(R) is a zipper with high waterproof properties. It is used in applications where waterproofing is required, such as wetsuits, waterproof bags, and cooler bags. It is soft and can also be sewn, making it suitable for use in clothing and bags. For applications that require higher airtightness, we also offer a separate product, PROSEAL(R). 【Reasons to Choose This Product】 ■ Used in applications where waterproofing is required ■ For applications that require higher airtightness, PROSEAL(R) is recommended *Documents introducing case studies by application can be viewed via the "PDF Download" link below. *AQUASEAL is a registered trademark of YKK Corporation.

Weather-resistant fasteners are products that use highly weather-resistant materials for the tape, elements, finishing parts, and sliders of the fasteners. They maintain a certain level of strength even under ultraviolet exposure conditions. They are characterized by minimal fading of the tape, and specifications with a net adapter are also available. 【Features】 ■ Uses highly weather-resistant materials for the tape, elements, finishing parts, and sliders of the fasteners ■ Maintains a certain level of strength even under ultraviolet exposure conditions ■ Minimal fading of the tape ■ Specifications with a net adapter are also available *For more details, please feel free to contact us.

YKK's VISLON(R) No.30 is a large zipper originally developed for fishing nets, but its high strength and durability make it suitable for various applications. It boasts more than twice the lateral pull strength compared to the conventional VISLON(R) No.15, demonstrating reliable performance even in harsh environments. Additionally, we offer repair elements that can be used when the zipper elements come off, allowing for quick repairs on-site. 【Features】 - High strength: Achieves more than twice the lateral pull strength of conventional fishing net zippers (VISLON(R) No.15). - Maintenance-friendly: Repair elements are available for quick repairs on-site. - Durability: Uses resin elements that are resistant to seawater and less prone to rust even after long-term use. *For more details, please download the catalog or feel free to contact us. *VISLON is a registered trademark of YKK Corporation.

The "Power Rail" allows for easy fixation of cushioning materials. It is also used when securing the cover of a pickup truck's bed. It is suitable for those who want to install cushioning materials like mats in existing facilities such as school gymnasiums and playgrounds. 【Features】 ■ Easy fixation of cushioning materials ■ Also used for securing the cover of a pickup truck's bed ■ No need for sewing or adhesive installation ■ Provides a secure mechanical fixation while maintaining a neat appearance *For more details, please feel free to contact us.

◆Background of Adoption for Construction Protective Net Use ~The Burden of "Removing the Net" Work in Preparation for Strong Winds~ In construction sites, protective sheets known as "yousei sheets" are used to prevent paint splatter and other issues. When strong winds are expected, such as during typhoons, these sheets can catch the wind and potentially lead to scaffold collapse. As a result, the sheets must be removed in advance whenever strong winds are predicted, creating a significant burden. ◆Key Points for Problem Solving (How Fastening Helped) With the ability to open and close ventilation openings using fasteners, it has become easy to create "holes" in the protective sheets to allow the wind to escape simply by opening the fasteners. Consequently, the previous requirement to remove all protective sheets has been reduced to only a portion, successfully alleviating the burden of removal and leading to a reduction in labor costs. *For more details on the product, please refer to the catalog available for download below.*

■Background for the Adoption of Underwater Construction Sheets The decrease in the number of divers for underwater construction and the challenges posed by site conditions (such as underwater visibility, current speed, and water temperature) have led to delays, increased costs, and reduced safety. Additionally, the removal of debris generated after the removal of materials used underwater, as well as the costs associated with repairs and maintenance for reuse, are also problematic. ■Key Points for Problem Solving Instead of the traditional assembly method using liner plates for temporary closures by divers, the new method employs waterproof sheets utilizing YKK's waterproof fastener AQUASEAL(R). These sheets allow for segmented construction, significantly reducing the underwater work performed by divers. This results in a reduction of underwater construction processes, improved economic efficiency through the reuse of plates, and a decreased risk of decompression sickness, enabling a reduction of approximately 20% in construction costs and timelines. (Note 1: Liner Plate: A construction material made of thin steel plates with wave processing and connecting flanges on all four sides. Multiple plates are combined and used in a cylindrical shape. Note 2: Estimated by Azai Technology Consultant Co., Ltd.)

Our AQUASEAL® zippers are widely used in applications requiring waterproofing, such as wetsuits, waterproof bags, and cooler bags. ◆ Background of Adoption in Tunnel Exhaust Ducts Exhaust ducts used in tunnel construction are extended by connecting them with zippers every 10 meters. However, due to frequent "air leaks" from the zippers, large fans or intermediate fans may be necessary. When the duct is long or the cross-sectional area of the tunnel is small, it becomes difficult to install intermediate fans. ◆ Key to Solving the Problem (How Fastening Helped) By adopting AQUASEAL® zippers at the connection points of the ducts, we successfully reduced air leakage to one-hundredth compared to conventional products. This led to the omission of intermediate fans and a reduction in electrical energy consumption. *For product details, please refer to the catalog available for download below. *AQUASEAL is a registered trademark of YKK Corporation.

Our AQUASEAL(R) fasteners are widely used in applications requiring waterproofing, such as wetsuits, waterproof bags, and cooler bags. ◆ Background of Adoption in Soundproof Curtains at Construction Sites When connecting soundproof panels (in sheet form), sound leakage from the gaps between the panels has been a challenge, and methods to enhance airtightness have been sought. ◆ Key Points for Solving the Issue (How Fastening Helped) By connecting the soundproof panels with AQUASEAL(R) fasteners, sound leakage from the gaps was reduced, and the installation work of the soundproof curtains was simplified. * For product details, please refer to the catalog available for download below. * AQUASEAL is a registered trademark of YKK Corporation.