# Anodizing Rubbing Off Suddenly **URL:** https://forums.yoyoexpert.com/t/anodizing-rubbing-off-suddenly/347695 **Category:** General Yo-Yo **Created:** [November 15, 2021, 6:01pm UTC](https://forums.yoyoexpert.com/t/anodizing-rubbing-off-suddenly/347695 "2021-11-15T18:01:57Z") **Posts on this page:** 1 **Showing post:** 29
### Author: ![Hanker](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/hanker/32/628221_2.png) [@Hanker](https://forums.yoyoexpert.com/u/Hanker) #### Post date: [November 16, 2021, 1:10am UTC](https://forums.yoyoexpert.com/t/anodizing-rubbing-off-suddenly/347695/29 "2021-11-16T01:10:51Z")
To add on to this, if a material with a lower hardness cannot damage a material with a higher hardness, then we wouldn’t be dinging our yoyos already. In fact, walking the dog on concrete will leave your yoyo in pristine condition! No marks or dings at all, because concrete has a mohs hardness rating of 5-7 and aluminium oxide has a mohs hardness rating of 9. But, that is not reality (we do wish that was reality don’t we?) @craZivn I suggest reaching out to yoyofactory about this, it’s not usual. I’m pretty sure they’ll provide you with a replacement that won’t have this problem as this issue is pretty rare (but very difficult to test for). Here are a few threads about similar issues with other yoyos: > [@Fingernail test removes ano?](https://forums.yoyoexpert.com/t/fingernail-test-removes-ano/301306): > > [20190415\_183121] Did a fingernail test on my sputnik and it took ano off the yoyo and made a ring… My hands are clean… My nails are cut… ??? > [@Top yo 5+6 colossus paint coming off/Current stock heads up!](https://forums.yoyoexpert.com/t/top-yo-5-6-colossus-paint-coming-off-current-stock-heads-up/339229): > > Anyone with a colossus 6 who doesn’t have this problem. When I finger spin on my mail or throw a talon grind I get blue paint on my finger and now there’s rings on the paint on the finger spin side. Never had an issue with top yo before till this… The 5 is doing it too confused --- _[View the full topic](https://forums.yoyoexpert.com/t/anodizing-rubbing-off-suddenly/347695)._