Jim <div> You may not wish to entertain this idea but we have used rubber fallboard buttons the size of the hole. We don;t have problems with build up or finish tear out either. We use an acrylic lacquer for what its worth. Automotive finish may react differently <div style="color: navy; font-family: 'Comic Sans MS', sans-serif; font-size: 10pt; clear: both; ">Dale Erwin R.P.T. Erwin's Piano Restoration Inc. Mason & Hamlin/Steinway/U.S. pianos www.Erwinspiano.com Phone: 209-577-8397 <tt><tt>     </tt></tt> </div> <div style="color: black; font-family: arial, helvetica; font-size: 10pt; ">-----Original Message----- From: Jim Ialeggio <jim@grandpianosolutions.com> To: pianotech <pianotech@ptg.org> Sent: Mon, Aug 20, 2012 1:03 pm Subject: [pianotech] More agraffes...kind'a <div id="AOLMsgPart_0_4d9bc389-eb0e-4dff-bb7c-e512d748b6ed" style="margin: 0px;font-family: Tahoma, Verdana, Arial, Sans-Serif;font-size: 12px;color: #000;background-color: #fff;"> <pre style="font-size: 9pt;"><tt>In the past, when refinishing a plate, I've had trouble with finish build-up in the agraffe couterbore bottom and sides. The buildup then was pulled along as the agraffe was tightened, sometime bringing surface finish with it, restulting in chips and other nasties. I've tried placing finish washers in the counterbore, held in by the weight of a screw, but I'm not happy with this, as it bonds the finish washer to the counterbore sides, creating chipping problems of its own, though less than no finish washer. Ideally, I'd cut a small bevel on the counterbore sides, and then not worry about masking the countebores, but in playing with this, I don't have a countersink remotely shallow enough to do the trick in such a shallow counterbore. Any thoughts on other ways to approach this easily? Jim Ialeggio -- Jim Ialeggio <a href="mailto:jim@grandpianosolutions.com">jim@grandpianosolutions.com</a> 978 425-9026 Shirley Center, MA </tt></pre> </div>  </div> </div>