PSA stands for Pressure Delicate Adhesive. These are generally self-adhesive sanding discs that swiftly and simply attach to the sanding machine. Out there in either cloth backing or paper backing with fabric staying used for major duty grinding and paper staying a far more economical and lightweight choice for lighter https://www.facebook.com/permalink.php?story_fbid=pfbid0tgzbP3xvRNr7vz9ugJqxZ6qpW5rJYkaQNiedGwxis84bSqzVZmu65mEhkn4EEZaRl&id=61562415773754&__cft__[0]=AZUrPa6046vl1x5Ftd0n16emkDMeojSzj35m7-jdmqDLTpbX-jZAVM_uwJUldY-XHZ04cAZ6vkYT8gm1B3edr4TeP-Apugz1_-4oH5k3it3N097r57Ozvke5N3NZ60v_2AyVWmIqx2dFIvr0wOUjIISc44eGuRP-V0ExBtxAs2yhT7Ru9DNLZcRk2HWmDM0LShzlX5f-MGd7fLEthGwT_Rxd&__tn__=%2CO%2CP-R