Hi Mary Ann!
Thanks for your question. According to the manufacturer's specifications the tabs are coated as well. Universal is our "house brand" and you will find they have an incredible quality product at a great value.
Remember, On Time Supplies carries over 40,000 office products at discounted prices with most items ready to ship the same day. We pride oursleves in offering world-class customer service and look forward to serving you.
Have a great day!