<html> Steel wool is not a good item to use for surface prep with waterborne finishes. Any small fibres left in the pores will rust. Jon Page At 09:59 AM 02/13/2000 -0600, you wrote: <blockquote><blockquote type=cite cite> <dl> <dd>One finisher I know advocates rubbing with steel wool rather than sanding before finishing. He believes that sanding leaves a sharp top edge on the pore which leads to the problem described below. Using steel wool breakes the edge of the pore allowing the finish to flow into the pore. Of course, he's not using water base so he can do that. <dd>Is anyone just filling with finish out there?</blockquote> <dd>-- <dd>Richard Anderson <dd>Anderson Piano Service <dd><a href="mailto:tknostf@foxvalley.net" eudora="autourl">mailto:tknostf@foxvalley.net</a> <dd><a href="http://users.foxvalley.net/~tknostf/" eudora="autourl">http://users.FoxValley.net/~tknostf/</a> <dd>From: Jon Page <jonpage@mediaone.net> <dd>Reply-To: pianotech@ptg.org <dd>Date: Sat, 12 Feb 2000 14:35:31 -0500 <dd>To: pianotech@ptg.org <dd>Subject: Re: Pianolac vs Enduro or ? <dd>PianoLac, The Sealer has components which fill the pores. <dd>Arthur has the proper terminology for their function. <dd>One of them is a super wetting agent which loosens the tension within the material. <dd>You have noticed that as you spray an open pore finish, the more coats you put on, <dd>the bigger the pores get. This is caused by the tension within the material (sort of <dd>like a meniscus). The wetting agent allows the material to flow deeper into the pores <dd>drawing it in; where before it developed surface tension at the edge of the pore. <dd>Jokingly I said the molecules have a tendency to lock arms and prevent each other <dd>from falling into the precipice but the wetting agent has them acting like lemmings. </dl> <div>Jon Page,   piano technician</div> <div>Harwich Port, Cape Cod, Mass.</div> <div><a href="mailto:jonpage@mediaone.net" EUDORA=AUTOURL>mailto:jonpage@mediaone.net</a></div> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ </html>