Troubleshooting The coating of my Philips Hair Straightener is wearing off If the coating of your Philips Straightener seems to be coming off, find out the root causes and solutions here. Straightener needs to be cleaned It is important to regularly maintain your Philips Straightener. Clean the plates of your straightener with a damp cloth after every use. Make sure you clean it when it has completely cooled down. Keep in mind that even if the coating wears off, this does not affect the performance of your straightener and it is still safe to use on your hair. If you are still not satisfied with the wear on your straightener, please contact us for further support.