--- title: What do we want to solve description: Discover our high-quality DANSUI coating service for outdoor gear, ensuring optimal water repellency, durability, and breathability. Say goodbye to discomfort and heavy, wet fabrics. --- [Skip to content](https://en.droproof.com/what-do-we-want-to-solve#main-content) - [English](https://en.droproof.com/what-do-we-want-to-solve) - [Deutsch](https://en.droproof.com/de/what-do-we-want-to-solve) - [한국어 - 대한민국](https://en.droproof.com/ko-kr/what-do-we-want-to-solve) - [中文 - 繁體](https://en.droproof.com/zh-tw/what-do-we-want-to-solve) - [简体中文](https://en.droproof.com/zh-cn/what-do-we-want-to-solve) English Show submenu for translations [![droproof_logo](https://en.droproof.com/hs-fs/hubfs/%E3%83%AD%E3%82%B4%E3%83%87%E3%83%BC%E3%82%BFBC.png?width=564&height=226&name=%E3%83%AD%E3%82%B4%E3%83%87%E3%83%BC%E3%82%BFBC.png)](https://en.droproof.com/?hsLang=en) - [HOME](https://en.droproof.com/) Show submenu for HOME - [What do we want?](https://en.droproof.com/de/what-do-we-want-to-solve) - [Why can we do it?](https://en.droproof.com/why-can-we-do-it) - [How well does it?](https://en.droproof.com/how-well-does-it-perform-dwr) - [Contact us](https://en.droproof.com/contact-us) - [Cross talk](https://en.droproof.com/cross_talk) - [Column](https://en.droproof.com/column) - [Privacy policy](https://en.droproof.com/privacypollicy) Open main navigation Close main navigation - [HOME](https://en.droproof.com/) Show submenu for HOME - [What do we want?](https://en.droproof.com/de/what-do-we-want-to-solve) - [Why can we do it?](https://en.droproof.com/why-can-we-do-it) - [How well does it?](https://en.droproof.com/how-well-does-it-perform-dwr) - [Contact us](https://en.droproof.com/contact-us) - [Cross talk](https://en.droproof.com/cross_talk) - [Column](https://en.droproof.com/column) - [Privacy policy](https://en.droproof.com/privacypollicy) - - [English](https://en.droproof.com/what-do-we-want-to-solve) - [Deutsch](https://en.droproof.com/de/what-do-we-want-to-solve) - [한국어 - 대한민국](https://en.droproof.com/ko-kr/what-do-we-want-to-solve) - [中文 - 繁體](https://en.droproof.com/zh-tw/what-do-we-want-to-solve) - [简体中文](https://en.droproof.com/zh-cn/what-do-we-want-to-solve) English Show submenu for translations - [Contact us](https://en.droproof.com/contact-us) [Contact us](https://en.droproof.com/contact-us?hsLang=en) # What do we want to solve? For products used outdoors, such as rainwear and tents, that have been treated with DWR, we perform optimal cleaning and apply a "DANSUI coating" to reactive the DWR that has fallen off, This is a maintenance service to make your outdoor life more comfortable. # What is "DANSUI coating"? This is a proprietary water repellent reprocessing technology of SORANOSHITA Co. ![IMG_0009](https://en.droproof.com/hs-fs/hubfs/IMG_0009.jpg?width=2000&height=1333&name=IMG_0009.jpg "IMG_0009") ### What's the difference? High-quality materials for outdoor wear cannot perform as well as they should without DWR. However, with the shift to PFC-free materials, DWR performance has declined. As a solution, it has become necessary to reactivate DWR through maintenance, but self-maintenance has its limitations. However, self-maintenance has its limitations because there is a big difference between production and self-maintenance DWR, not only in the water repellent but also in the process. So we decided to rebuild from the DWR process. Instead of giving up the format of selling only the water repellent and having people treat it at home, We perfected our quality service in the form of re-DWR treatment at the factory. ## Disadvantages due to lower DWR ### Decreased DWR of outdoor gear can lead to injuries and accidents. DWR degradation can be caused by a variety of soils, including rain, mud, sweat from the body, and dirt from sebum. In addition, the DWR may be reduced due to abrasion of the fabric surface. As a result, the fabric surface gets wet quickly in the rain. ![demerit_01](https://en.droproof.com/hs-fs/hubfs/demerit_01.png?width=200&height=200&name=demerit_01.png "demerit_01") ### Decrease in comfort Breathable rainwear from products such as Gore-Tex can cause significant loss of its breathability, causing moisture to accumulate inside the garment and consequently wet the inside of the garment. In outdoor activities, it is essential to absorb and dissipate sweat vapor quickly and keep the skin dry. ![demerit_02](https://en.droproof.com/hs-fs/hubfs/demerit_02.png?width=200&height=200&name=demerit_02.png "demerit_02") ### Become heavy Wet fabric surfaces can cause the entire garment to become heavier, robbing the wearer of physical strength. Heavier clothing also means that you are more likely to fatigue, which can easily lead to injuries and accidents. It is extremely dangerous to wear rainwear in extreme conditions where it is necessary to wear it. ![demerit_03](https://en.droproof.com/hs-fs/hubfs/demerit_03.png?width=200&height=200&name=demerit_03.png "demerit_03") ### Hypothermia Water itself is a substance that transfers heat easily, so wet fabric surfaces can easily feel cold. A drop in body temperature in the outdoors can, in the worst case, lead to death. In addition, when the symptom of fatigue is added to the drop in body temperature, it can lead to injuries and accidents. ## Solution ![resolution_01](https://en.droproof.com/hs-fs/hubfs/resolution_01.jpg?width=600&height=400&name=resolution_01.jpg "resolution_01") ### High water repellency The water repellent "DANSUI coatings" we perform have very high water repellency, so the repelled water approaches a sphere. As a result, when water does adhere, it immediately forms a ball and rolls off, minimizing the amount of water remaining on the garment. ![resolution_02](https://en.droproof.com/hs-fs/hubfs/resolution_02.jpg?width=600&height=400&name=resolution_02.jpg "resolution_02") ### Focus on durability Our main focus was on the durability of water repellency. If a high level of water repellency cannot be maintained for a long period of time, it is powerless in the field. As a specialized outdoor water repellent treatment, we developed the Elastic Water Coating with the greatest focus on how long the water repellency can be maintained. ![resolution_03](https://en.droproof.com/hs-fs/hubfs/resolution_03.jpg?width=600&height=400&name=resolution_03.jpg "resolution_03") ### No loss of moisture permeability Some water repellent treatments involve coating the surface. Our water repellent coating has been developed for mountaineering, and is formulated for waterproof and moisture permeable materials such as GORE-TEX, etc., in a way that does not impair moisture permeability as much as possible. 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