--- title: Detecting Hairlike Scratches on Coated Tubing description: If a pressure fit component is applied to a coated tube with surface variations, a leak path could result. This can create potentially hazardous conditions. To ensure coated tubes meet the exacting needs of their customers, the manufacturer must effectively monitor the quality of the tube. image: https://blog.xiris.com/hubfs/wi2200%20360%20blog%20.png --- [![xiris-automation-logo-white](https://blog.xiris.com/hubfs/Xiris_2020/images/xiris-automation-logo-white.png "xiris-automation-logo-white")](https://www.xiris.com/) [![xiris-automation-logo-color](https://blog.xiris.com/hubfs/Xiris_2020/images/xiris-automation-logo-color.png "xiris-automation-logo-color")](https://www.xiris.com/) [weld inspection](https://blog.xiris.com/blog/topic/weld-inspection), [Tube and Pipe welding](https://blog.xiris.com/blog/topic/tube-and-pipe-welding), [defects](https://blog.xiris.com/blog/topic/defects), [tubedefects](https://blog.xiris.com/blog/topic/tubedefects) # Detecting Hairlike Scratches on Coated Tubing This is a search field with an auto-suggest feature attached. - There are no suggestions because the search field is empty. - [** ](https://www.facebook.com/sharer/sharer.php?u=https://blog.xiris.com/blog/xiris-release-new-tube-and-pipe-scratch-inspection-&title=Detecting+Hairlike+Scratches+on+Coated+Tubing&picture=https://f.hubspotusercontent20.net/hubfs/206970/wi2200%20360%20blog%20.png&description=If+a+pressure+fit+component+is+applied+to+a+coated+tube+with+surface+variations%2C+a+leak+path+could+result.+This+can+create+potentially+hazardous+conditions.+To+ensure+coated+tubes+meet+the+exacting+needs+of+their+customers%2C+the+manufacturer+must+effectively+monitor+the+quality+of+the+tube.) - [** ](https://twitter.com/intent/tweet?source=https://blog.xiris.com/blog/xiris-release-new-tube-and-pipe-scratch-inspection-&text=Detecting+Hairlike+Scratches+on+Coated+Tubing%20-%20https://blog.xiris.com/blog/xiris-release-new-tube-and-pipe-scratch-inspection-) - [** ](https://www.linkedin.com/shareArticle?mini=true&url=https://blog.xiris.com/blog/xiris-release-new-tube-and-pipe-scratch-inspection-&title=Detecting+Hairlike+Scratches+on+Coated+Tubing&summary=If+a+pressure+fit+component+is+applied+to+a+coated+tube+with+surface+variations%2C+a+leak+path+could+result.+This+can+create+potentially+hazardous+conditions.+To+ensure+coated+tubes+meet+the+exacting+needs+of+their+customers%2C+the+manufacturer+must+effectively+monitor+the+quality+of+the+tube.) - [** ](https://plus.google.com/share?url=https://blog.xiris.com/blog/xiris-release-new-tube-and-pipe-scratch-inspection-) - [** ](https://www.facebook.com/sharer/sharer.php?u=https://blog.xiris.com/blog/xiris-release-new-tube-and-pipe-scratch-inspection-&title=Detecting+Hairlike+Scratches+on+Coated+Tubing&picture=https://f.hubspotusercontent20.net/hubfs/206970/wi2200%20360%20blog%20.png&description=If+a+pressure+fit+component+is+applied+to+a+coated+tube+with+surface+variations%2C+a+leak+path+could+result.+This+can+create+potentially+hazardous+conditions.+To+ensure+coated+tubes+meet+the+exacting+needs+of+their+customers%2C+the+manufacturer+must+effectively+monitor+the+quality+of+the+tube.) - [** ](https://twitter.com/intent/tweet?source=https://blog.xiris.com/blog/xiris-release-new-tube-and-pipe-scratch-inspection-&text=Detecting+Hairlike+Scratches+on+Coated+Tubing%20-%20https://blog.xiris.com/blog/xiris-release-new-tube-and-pipe-scratch-inspection-) - [** ](https://www.linkedin.com/shareArticle?mini=true&url=https://blog.xiris.com/blog/xiris-release-new-tube-and-pipe-scratch-inspection-&title=Detecting+Hairlike+Scratches+on+Coated+Tubing&summary=If+a+pressure+fit+component+is+applied+to+a+coated+tube+with+surface+variations%2C+a+leak+path+could+result.+This+can+create+potentially+hazardous+conditions.+To+ensure+coated+tubes+meet+the+exacting+needs+of+their+customers%2C+the+manufacturer+must+effectively+monitor+the+quality+of+the+tube.) ![Aishani Mehra](https://blog.xiris.com/hubfs/coil%20joining/user.png) Written by Aishani Mehra on June 8, 2022 Several industries, such as automotive, oil and gas, and agriculture, use coated precision tubing for key applications. The protective coatings provide additional abrasion and corrosion protection for the tubing in the field, which is crucial in preventing damage and equipment failure.  The Problem  Plastic protective coatings are usually extruded on to the welded tube as part of the final step in the process.  The extrusion dies wear out over time or can pick up impurities, so it is possible for surface imperfections to appear on the extruded material.  The imperfections can appear as a type of scratches that can run the length of a tube. Coated tubes are used in applications such as fuel transport where they are coupled to other components via a pressure fit. If the pressure fit component ends up being applied to a coated tube with surface variations, a leak path could result. This can create potentially hazardous conditions. To ensure coated tubes meet the exacting needs of their customers, the manufacturer must monitor the quality of the coated tube for the presence of any surface variations greater than 0.015 mm in width or depth that may occur. These scratches can be extremely hard to detect. Often, once detected, it is too late to correct the source of the surface defects on a tube production line, and a section of the tube must be scrapped.  The Solution  The only way to properly detect surface related issues on a coated tube is to use a laser-based surface inspection system such as the [WI-2200 - 360° Scratch Inspection System](https://info.xiris.com/wi-2200-360-scratch-inspection). Using such systems are the only way that features as fine as 8µm, such as hairline-like scratches on a surface, can be detected. The image below is from a screenshot of an inspection where a surface defect has been detected and highlighted to the user.  This allows the user to take proper action to address the issue before it worsens.  Because the scratches could happen anywhere around the tube, measurements have to happen all the way around the tube, which the WI-2200-360 does offer.   [![Detected Defect Highlighted on Tube ](https://blog.xiris.com/hs-fs/hubfs/blob-1.png?width=696&name=blob-1.png)](https://info.xiris.com/wi-2200-datasheet-request) Fig. 1: Partial Screen Shot Showing Part of the Surface Inspections with a Detected Defect Highlighted  The WI-2200 - 360° Scratch Inspection is Xiris’ newest innovation that provides our customers with high precision, high quality inspection systems to ensure 100% on-line quality. To learn more[, download our free datasheet](https://info.xiris.com/wi-2200-360-scratch-inspection) or [request a one-on-one consultation with our experts](https://info.xiris.com/request-a-consultation).  **Better Images. Better Decisions. Better Process Control.**  Follow Xiris on social media for regular updates [![Instagram](https://blog.xiris.com/hs-fs/hubfs/Images/Social%20Media%20Logos/Instagram.png?width=28&name=Instagram.png)](https://www.instagram.com/xirisautomation/) [![Facebook](https://blog.xiris.com/hs-fs/hubfs/Facebook.png?width=28&name=Facebook.png)](https://www.facebook.com/XirisAutomationInc) [![LinkedIn](https://blog.xiris.com/hs-fs/hubfs/LinkedIn.png?width=28&name=LinkedIn.png)](https://www.linkedin.com/company/594303) [![Twitter](https://blog.xiris.com/hs-fs/hubfs/Twitter.png?width=36&name=Twitter.png)](https://twitter.com/XirisAutomation) ### Recent Posts ### You may also like: [![](https://blog.xiris.com/hubfs/Open%20Graph%20-%20Blogs-1.png) ## How HDR Weld Pool Camera Technology Reduces Arc Glare {% module_block module... ](https://blog.xiris.com/blog/how-hdr-weld-pool-camera-technology-reduces-arc-glare) [![Do Undercut Welds Need to Be Redone? Causes, Evaluation, and Repair](https://blog.xiris.com/hubfs/Undercut-in-welding.png) ## Do Undercut Welds Need to Be Redone? Causes, Evaluation, and Repair ](https://blog.xiris.com/blog/do-undercut-welds-need-to-be-redone-causes-evaluation-and-repair) [![Cold Lap in Welding: Understanding, Preventing, and Fixing This Defect](https://blog.xiris.com/hubfs/Cold-Lap-in-welding.png) ## Cold Lap in Welding: Understanding, Preventing, and Fixing This Defect ](https://blog.xiris.com/blog/cold-lap-in-welding) ![Thermal Weld image with filter](https://blog.xiris.com/hubfs/Cover%20Webinar.png "Thermal Weld image with filter") ## Don't miss a single post! Get expert weld monitoring and inspection info sent straight to your inbox. Contact **Xiris Automation Inc.** 5046 Mainway, Unit 2 Burlington, Ontario, Canada L7L 5Z1 [Email: sales@xiris.com](mailto:sales@xiris.com) [Phone: +1.905.331.6660](tel:+1.905.331.6660) [Fax: +1.905.331.6661](https://blog.xiris.com/blog/xiris-release-new-tube-and-pipe-scratch-inspection-#)   **Xiris Automation GmbH** Holterkamp 18 40880 Ratingen Germany [Email: sales@xiris.eu](mailto:sales@xiris.eu) [Phone: +49.2102.126.3835](tel:++49.2102.126.3835) About Xiris Resources Follow Us - [**](https://twitter.com/XirisAutomation) - [**](https://www.facebook.com/XirisAutomationInc) - [**](https://www.instagram.com/xirisautomation/) - [**](https://www.linkedin.com/company/xiris-automation-inc/) - [**](https://www.youtube.com/user/XirisAutomationInc) © Xiris Automation 2020 ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Aishani Mehra", "url" : "https://blog.xiris.com/blog/author/aishani-mehra" }, "dateModified" : "2022-06-08T20:03:18.058Z", "datePublished" : "2021-06-17T16:30:00.000Z", "headline" : "Detecting Hairlike Scratches on Coated Tubing", "image" : [ "https://blog.xiris.com/hubfs/wi2200%20360%20blog%20.png" ], "mainEntityOfPage" : { "@id" : "https://blog.xiris.com/blog/xiris-release-new-tube-and-pipe-scratch-inspection-", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://blog.xiris.com/hs-fs/file-25094537-png/images/logo-1.png?t=1364277994000" }, "name" : "Xiris Automation Inc." } } ```