[meteorite-list] Re:[meteorite-list]question
From: mafer <mafer_at_meteoritecentral.com>
Date: Thu Apr 22 10:23:47 2004 Message-ID: <004701c2e83a$91d50840$6501a8c0_at_vs.shawcable.net> This is a multi-part message in MIME format. ------=_NextPart_000_0044_01C2E7F7.6F53DAA0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Robert and list I can't comment yet on the polish as I don't believe I have a large = enough piece or stone that isn't already polished, but I'm getting great = results on my thin sections with 1000 grit. I use a two part epoxy, they = only have to be resistant to yellowing and uv degradation and of course, = clear. Super glue is hygroscopic which means it wants to attrack water = over time (unless they've gotten a better formula) and it will become = brittle and loose adhesion (they learned this the hard way in = implantable pacemaker assembly). Opticon is good, but its a tad expensive, as is the uv curable epoxies. = I currently am trying a clear fly rod 2 part epoxy which seems to give = good results. It has a added feature in which it is somewhat flexible = which most other epoxies aren't. Mark ----- Original Message -----=20 From: robert jackson=20 To: Meteorite-list_at_meteoritecentral.com=20 Sent: Tuesday, March 11, 2003 5:33 PM Subject: [meteorite-list] Re:[meteorite-list]question Question 1. How do the dealers get that great polish on the L 6 = stones they sell. I take my slices and go up through 600 and maybe 800 = then still don't get that great finish. Is it diamond.... Question 2. I've been making up some thin sections. Using the lap on = a facetor. Does pretty good job. Several have come out great on the = polarized microscope. But the glues that you use on the slide. Super = glue is not so good. Opticon is best so far, any ideas. Haven't posted in a long time, Bob Jackson, Riverside. ------=_NextPart_000_0044_01C2E7F7.6F53DAA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content=3D"text/html; charset=3Diso-8859-1" = http-equiv=3DContent-Type> <META content=3D"MSHTML 5.00.2614.3500" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT size=3D2>Hi Robert and list</FONT></DIV> <DIV><FONT size=3D2>I can't comment yet on the polish as I don't believe = I have a=20 large enough piece or stone that isn't already polished, but I'm getting = great=20 results on my thin sections with 1000 grit. I use a two part epoxy, they = only=20 have to be resistant to yellowing and uv degradation and of course, = clear. Super=20 glue is hygroscopic which means it wants to attrack water over time = (unless=20 they've gotten a better formula) and it will become brittle and loose = adhesion=20 (they learned this the hard way in implantable pacemaker = assembly).</FONT></DIV> <DIV><FONT size=3D2>Opticon is good, but its a tad expensive, as is the = uv curable=20 epoxies. I currently am trying a clear fly rod 2 part epoxy which seems = to give=20 good results. It has a added feature in which it is somewhat flexible = which most=20 other epoxies aren't.</FONT></DIV> <DIV><FONT size=3D2>Mark</FONT></DIV> <BLOCKQUOTE=20 style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: = 0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px"> <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV> <DIV=20 style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B>=20 <A href=3D"mailto:tannershouse_at_earthlink.net"=20 title=3Dtannershouse_at_earthlink.net>robert jackson</A> </DIV> <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20 href=3D"mailto:Meteorite-list_at_meteoritecentral.com"=20 = title=3DMeteorite-list_at_meteoritecentral.com>Meteorite-list@meteoritecentr= al.com</A>=20 </DIV> <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, March 11, 2003 = 5:33=20 PM</DIV> <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [meteorite-list]=20 Re:[meteorite-list]question</DIV> <DIV><BR></DIV> <DIV><FONT face=3DArial size=3D2>Question 1. How do the dealers = get that=20 great polish on the L 6 stones they sell. I take my slices and go up = through=20 600 and maybe 800 then still don't get that great finish. Is it=20 diamond....</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Question 2. I've been making up = some thin=20 sections. Using the lap on a facetor. Does pretty good job. = Several have=20 come out great on the polarized microscope. But the glues that you use = on the=20 slide. Super glue is not so good. Opticon is best so far, any=20 ideas.</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Haven't posted in a long time, Bob = Jackson,=20 Riverside.</FONT></DIV></BLOCKQUOTE></BODY></HTML> ------=_NextPart_000_0044_01C2E7F7.6F53DAA0-- Received on Tue 11 Mar 2003 08:55:43 PM PST |
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