--- title: How well does it perform DWR? description: Evaluate the durability of water repellency with rigorous tests on DANSUI coatings, ensuring lasting protection against water even after repeated washing and exposure to showers. --- [Skip to content](https://en.droproof.com/how-well-does-it-perform-dwr#main-content) - [English](https://en.droproof.com/how-well-does-it-perform-dwr) - [Deutsch](https://en.droproof.com/de/how-well-does-it-perform-dwr) - [한국어 - 대한민국](https://en.droproof.com/ko-kr/how-well-does-it-perform-dwr) - [中文 - 繁體](https://en.droproof.com/zh-tw/how-well-does-it-perform-dwr) - [简体中文](https://en.droproof.com/zh-cn/how-well-does-it-perform-dwr) 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/how-well-does-it-perform-dwr) - [Deutsch](https://en.droproof.com/de/how-well-does-it-perform-dwr) - [한국어 - 대한민국](https://en.droproof.com/ko-kr/how-well-does-it-perform-dwr) - [中文 - 繁體](https://en.droproof.com/zh-tw/how-well-does-it-perform-dwr) - [简体中文](https://en.droproof.com/zh-cn/how-well-does-it-perform-dwr) English Show submenu for translations - [Contact us](https://en.droproof.com/contact-us) [Contact us](https://en.droproof.com/contact-us?hsLang=en) # How well does it perform DWR? While water repellency can be evaluated by the method defined in JISL-1092, there is no fixed index for evaluating the durability of water repellency. We have been evaluating and brushing up our DANSUI coatings through various tests in order to use a more field-oriented index. ## Washing durability test The fabric was repeatedly washed as specified in JISL-0217-105 method, and water repellency was evaluated by JISL-1092 method after washing. The average of three washings under each test condition is shown in the graph. The test cloth was made of 100% nylon. (Conducted at Tokyo Metropolitan Industrial Technology Research Institute) The repellent coating adheres well to the fabric and does not easily lose its water-repellent component even after repeated washing. ![graph_01E_en](https://en.droproof.com/hs-fs/hubfs/graph_01E_en.jpg?width=478&height=436&name=graph_01E_en.jpg "graph_01E_en") --- ## Shower durability test The fabric was repeatedly washed as specified in JISL-0217-105 method, and water repellency was evaluated by JISL-1092 method after washing. The average of three washings under each test condition is shown in the graph. The test cloth was made of 100% nylon. (Conducted at Tokyo Metropolitan Industrial Technology Research Institute) The repellent coating adheres well to the fabric and does not easily lose its water-repellent component even after repeated washing. ![graph_02A_en](https://en.droproof.com/hs-fs/hubfs/graph_02A_en.png?width=582&height=390&name=graph_02A_en.png "graph_02A_en") --- ## Check water repellency after immersion Test cloths treated with a water repellent finish were immersed in water for 5 days, and then the water repellency was checked. The test cloth was 100% nylon. (In-house test) The repellant coating maintains water repellency even under conditions of constant contact with water. ![test_01](https://en.droproof.com/hs-fs/hubfs/test_01.jpg?width=600&height=600&name=test_01.jpg "test_01") ### DANSUI coating ![test_02](https://en.droproof.com/hs-fs/hubfs/test_02.jpg?width=600&height=600&name=test_02.jpg "test_02") ### Outdoor specialty water repellent #1 ![test_03](https://en.droproof.com/hs-fs/hubfs/test_03.jpg?width=600&height=600&name=test_03.jpg "test_03") ### Outdoor specialty water repellent #2 ![test_04](https://en.droproof.com/hs-fs/hubfs/test_04.jpg?width=600&height=600&name=test_04.jpg "test_04") ### Mass-market waterproof spray ![test_05](https://en.droproof.com/hs-fs/hubfs/test_05.jpg?width=600&height=600&name=test_05.jpg "test_05") ### Waterproof spray made by outdoor manufacturer [Follow us on Facebook](https://www.youtube.com/channel/UCik85RPtcoekUJKnowVaDtQ) [linkedin-in icon](https://www.linkedin.com/in/takanori-murono-6439912a1/) [instagram icon](https://www.instagram.com/droproof_soranoshita/) --- [![droproof_logo](https://en.droproof.com/hs-fs/hubfs/%E3%83%AD%E3%82%B4%E3%83%87%E3%83%BC%E3%82%BFBC-1.png?width=564&height=226&name=%E3%83%AD%E3%82%B4%E3%83%87%E3%83%BC%E3%82%BFBC-1.png "droproof_logo")](https://en.droproof.com/?hsLang=en) 403-0032 8-23-39, Higashi-Kamiyoshida, Fujiyoshida-shi, Yamanashi, Japan Copyright © 2024, SORANOSHITA Co.