Yes, 409 contains bleach. If you spray and let it soak it will bleach the areas where it runs leaving splotchy coloration. Best to spray on uniformly as possible and wipe off quickly. I like full strength as I find a little dilution hugely reduces its effectiveness. I mostly use it on 80 year pianos that are pretty nasty to start out, so I can't make them any worse. Use a brush or paint brush to work it around hitch pins and tuning pins. It is pretty nice if you have an air compressor to blow it out of those pin fields into a waiting cloth. A canister vacuum on the blower side using the crevice tool will also work at giving you a high velocity air stream. Dean Dean W May (812) 235-5272 voice and text PianoRebuilders.com (888) DEAN-MAY Terre Haute IN 47802 Give us a LIKE on Facebook! Go to PianoRebuilders.com _____ From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Delwin D Fandrich Sent: Thursday, August 11, 2011 10:20 AM To: pianotech at ptg.org Subject: Re: [pianotech] Cleaning the plate Be careful with that, "409" can be pretty rough on some finishes. ddf Delwin D Fandrich Piano Design & Fabrication 6939 Foothill Court SW, Olympia, Washington 98512 USA Phone 360.515.0119 - Cell 360.388.6525 del at fandrichpiano.com <mailto:del at fandrichpiano.com> - ddfandrich at gmail.com From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Dean May Sent: Thursday, August 11, 2011 6:25 AM To: pianotech at ptg.org Subject: Re: [pianotech] Cleaning the plate I like 409. YMMV Dean Dean W May (812) 235-5272 voice and text PianoRebuilders.com (888) DEAN-MAY Terre Haute IN 47802 Give us a LIKE on Facebook! Go to PianoRebuilders.com _____ From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Piano Boutique Sent: Thursday, August 11, 2011 9:15 AM To: pianotech at ptg.org Subject: [pianotech] Cleaning the plate List, Does anyone out there have a suggestion as to what to use to clean a plate? I have a piano in a special setting and could use some suggestions. I have used a mild detergent in the past, but this list sure has become a wealth of information, so I am fishing. William Benjamin RPT www.pianoboutique.com piano tuner extraordinaire The tuner alone, Preserves the tone. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20110811/69f43dd5/attachment.htm>
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