<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 6.00.2800.1400" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Hi Iñaki,</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV><FONT face=Arial = size=2> <DIV><FONT face=Arial size=2>Trisodium phosphate (recommended by = Greg) is a powerful detergent and would be a good first step for degreasing.  = However, it's not going to help with the rust, which I suspect is much of your problem.  </FONT>There are a variety of products here in the US = (and I'm sure there in Spain) that attack rust.  One such product is called = "Naval Jelly," my favorite.  If you can't find that, there's also "CLR," = which attacks calcium, lime (the same thing) and rust.  These products = react chemically with the rust to "dissolve" it, while not harming the = metal.  I've used them with great success on rust-stained concrete and rusty = iron hardware.  You can probably find similar products at your local = hardware store or grocery store in the "cleaning supplies" isle.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Peace,</FONT></DIV> <DIV><FONT face=Arial size=2>Sarah</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=info@coellopiano.com = href="mailto:info@coellopiano.com">Coello Servicio Técnico de Pianos</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, February 26, = 2004 4:13 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Iron frame = cleaning</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>Hello.</FONT></DIV> <DIV><FONT face=Arial size=2>I want to ask you what is the product = you use for remove and eliminate the dirt in a 100 years or more iron = frame? </FONT></DIV> <DIV><FONT face=Arial size=2>A person who have a painting = bussiness suggested to use acetone, but when I tried it, I have to use so much since the = dirt is huge. That over-acetone made suddenly several black spots in the iron = frame. I also don´t like to work with that product since is not very = effective I guess.</FONT></DIV> <DIV><FONT face=Arial size=2>I will paint the iron frame, but I = need to know if there is a better way.</FONT></DIV> <DIV><FONT face=Arial size=2>thanks.</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>Iñaki Coello</FONT></DIV> <DIV><FONT face=Arial size=2>Valladolid. Spain.</FONT></DIV> <DIV> </DIV></BLOCKQUOTE></BODY></HTML>