--- title: droproof_column --- [Skip to content](https://en.droproof.com/column/page/1#main-content) - [English](https://en.droproof.com/column) - [Deutsch](https://en.droproof.com/de/column) - [한국어 - 대한민국](https://en.droproof.com/ko-kr/column) - [中文 - 繁體](https://en.droproof.com/zh-tw/column) - [日本語](https://en.droproof.com/blog) - [简体中文](https://en.droproof.com/zh-cn/column) English Show submenu for translations [![ロゴデータBB](https://en.droproof.com/hs-fs/hubfs/%E3%83%AD%E3%82%B4%E3%83%87%E3%83%BC%E3%82%BFBB.png?width=283&height=114&name=%E3%83%AD%E3%82%B4%E3%83%87%E3%83%BC%E3%82%BFBB.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/column) - [Deutsch](https://en.droproof.com/de/column) - [한국어 - 대한민국](https://en.droproof.com/ko-kr/column) - [中文 - 繁體](https://en.droproof.com/zh-tw/column) - [日本語](https://en.droproof.com/blog) - [简体中文](https://en.droproof.com/zh-cn/column) English Show submenu for translations - [Contact us](https://en.droproof.com/contact-us) [Contact us](https://en.droproof.com/contact-us?hsLang=en) # List of all columns in droproof We offer DWR revitalization and other outdoor sustainable solutions services. This section provides information about outdoor equipment maintenance. [![](https://en.droproof.com/hubfs/%E3%83%AD%E3%82%B4%E3%83%87%E3%83%BC%E3%82%BFBC.png)](https://en.droproof.com/column/from-outdoor-gear-rental-to-revolutionary-water-repellent-technology-the-story-behind-droproof) [droproof](https://en.droproof.com/column/tag/droproof) ### [From Outdoor Gear Rental to Revolutionary Water Repellent Technology: The Story Behind Droproof](https://en.droproof.com/column/from-outdoor-gear-rental-to-revolutionary-water-repellent-technology-the-story-behind-droproof) September 27, 2025 *How one entrepreneur's frustration with wet rain gear led to the development of a groundbreaking...* [![](https://en.droproof.com/hubfs/GORE-TEX%20A.jpg)](https://en.droproof.com/column/gore-tex-care-understanding-waterproof-breathable-fabrics-and-their-maintenance) [gore-tex](https://en.droproof.com/column/tag/gore-tex) ### [Gore-Tex Care: Understanding Waterproof Breathable Fabrics and Their Maintenance](https://en.droproof.com/column/gore-tex-care-understanding-waterproof-breathable-fabrics-and-their-maintenance) May 6, 2025 ## Introduction: The Gore-Tex Revolution Since the introduction of Gore-Tex, our mountaineering... [![](https://en.droproof.com/hubfs/IMG_1212.jpg)](https://en.droproof.com/column/the-scientific-difference-between-waterproof-and-water-repellent-essential-knowledge-you-might-not-know) [Waterproof](https://en.droproof.com/column/tag/waterproof) ### [The Scientific Difference Between Waterproof and Water-Repellent: Essential Knowledge You Might Not Know](https://en.droproof.com/column/the-scientific-difference-between-waterproof-and-water-repellent-essential-knowledge-you-might-not-know) May 5, 2025 ## Introduction Have you ever wondered about the difference between waterproof and water-repellent... [![](https://en.droproof.com/hubfs/AdobeStock_448532408_Editorial_Use_Only.jpeg)](https://en.droproof.com/column/gore-tex-care-common-mistakes-and-proper-maintenance-methods) [gore-tex](https://en.droproof.com/column/tag/gore-tex) ### [GORE-TEX Care: Common Mistakes and Proper Maintenance Methods](https://en.droproof.com/column/gore-tex-care-common-mistakes-and-proper-maintenance-methods) May 2, 2025 Hello! Today I'd like to talk about the correct care methods for GORE-TEX products that many people... [![](https://en.droproof.com/hubfs/AdobeStock_17319327-1.jpeg)](https://en.droproof.com/column/can-heat-restore-waterproof-performance-the-truth-from-experiments-and-case-studies) [DWR](https://en.droproof.com/column/tag/dwr) ### [Can Heat Restore Waterproof Performance? The Truth from Experiments and Case Studies](https://en.droproof.com/column/can-heat-restore-waterproof-performance-the-truth-from-experiments-and-case-studies) May 1, 2025 Hello outdoor enthusiasts! Today we're going to thoroughly examine the claim that "applying heat to... [![](https://en.droproof.com/hubfs/AdobeStock_456854448-1.jpeg)](https://en.droproof.com/column/rainwear-water-repellency-how-long-does-it-last-analyzing-detailed-data-and-case-studies) [DWR](https://en.droproof.com/column/tag/dwr) ### [Rainwear Water Repellency: How Long Does It Last? ~ Analyzing Detailed Data and Case Studies](https://en.droproof.com/column/rainwear-water-repellency-how-long-does-it-last-analyzing-detailed-data-and-case-studies) April 29, 2025 Hello outdoor enthusiasts! Today, I'll be diving into a question that many of you have probably... [![](https://en.droproof.com/hubfs/AdobeStock_594724909-1.jpeg)](https://en.droproof.com/column/the-current-state-and-challenges-of-pfas-issues-in-japan-understanding-the-forever-chemicals) [PFAS](https://en.droproof.com/column/tag/pfas) ### [The Current State and Challenges of PFAS Issues in Japan: Understanding the "Forever Chemicals"](https://en.droproof.com/column/the-current-state-and-challenges-of-pfas-issues-in-japan-understanding-the-forever-chemicals) April 18, 2025 ## Introduction In recent years, PFAS, known as "forever chemicals," have gained worldwide attention... [![](https://en.droproof.com/hubfs/AdobeStock_293376978-1.jpeg)](https://en.droproof.com/column/7-misconceptions-about-dwr-what-outdoor-enthusiasts-should-know) [gore-tex](https://en.droproof.com/column/tag/gore-tex) ### [7 Misconceptions About DWR - What Outdoor Enthusiasts Should Know](https://en.droproof.com/column/7-misconceptions-about-dwr-what-outdoor-enthusiasts-should-know) April 17, 2025 Hello, today I'd like to talk about DWR (water-repellent treatment), which many people... [![](https://en.droproof.com/hubfs/AdobeStock_28446080-1.jpeg)](https://en.droproof.com/column/which-waterproofing-spray-is-better-fluorinated-silicone-based-or-hydrocarbon-based) [waterproof sprays](https://en.droproof.com/column/tag/waterproof-sprays) ### [Which waterproofing spray is better: fluorinated, silicone-based, or hydrocarbon-based?](https://en.droproof.com/column/which-waterproofing-spray-is-better-fluorinated-silicone-based-or-hydrocarbon-based) November 7, 2024 When choosing a water-repellent spray, there are many different types on the market, including... [![](https://en.droproof.com/hubfs/AdobeStock_491626231-2.jpeg)](https://en.droproof.com/column/what-is-the-problem-with-fluoride-and-what-is-harmful-about-it) [PFCs](https://en.droproof.com/column/tag/pfcs) ### [What is the problem with fluoride, and what is harmful about it?](https://en.droproof.com/column/what-is-the-problem-with-fluoride-and-what-is-harmful-about-it) October 24, 2024 Did you know that recent rainwear is moving away from the use of fluorine? There are fabrics and... [![](https://en.droproof.com/hubfs/GORE-TEX%20A.jpg)](https://en.droproof.com/column/what-is-the-lifespan-of-gore-tex-how-many-years-can-it-be-worn) [gore-tex](https://en.droproof.com/column/tag/gore-tex) ### [What is the lifespan of Gore-Tex? How many years can it be worn?](https://en.droproof.com/column/what-is-the-lifespan-of-gore-tex-how-many-years-can-it-be-worn) October 13, 2024 As an essential part of outdoor wear, Gore-Tex material is indispensable for outdoor enthusiasts... [![](https://en.droproof.com/hubfs/AdobeStock_359539131_Editorial_Use_Only(1).jpeg)](https://en.droproof.com/column/care-of-gore-tex-at-home-proper-use-of-nikwax) [NIKWAX](https://en.droproof.com/column/tag/nikwax) ### [Care of Gore-Tex at home. How you can properly use of NIKWAX](https://en.droproof.com/column/care-of-gore-tex-at-home-proper-use-of-nikwax) September 30, 2024 Outdoor jackets lose their water repellency after use. If water repellency is lost, even... 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