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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*cleaning\s+concrete\s*$/: 3 ]

Total 3 documents matching your query.

1. cleaning concrete (score: 1): Author: John Niolon <JNiolon@uss.com>; Date: Mon, 10 Oct 2005 10:18:28 -0500; here's the case... concrete driveway/pad in front of a shop where a lot of grinding/welding/cutting goes on... the concrete in front of the shop has a beautiful 'iron' rust patina... ( you know, you; /html/shop-talk/2005-10/msg00050.html (7,112 bytes)
2. RE: cleaning concrete (score: 1): Author: John Niolon <JNiolon@uss.com>; Date: Mon, 10 Oct 2005 12:47:21 -0500; I don't have a good answer to that, but I would probably be trying a chemical attack, like phosphoric acid or CLR (which contains phosphoric and oxalic acids as I recall). I've always seen Muratic ac; /html/shop-talk/2005-10/msg00051.html (6,697 bytes)
3. RE: cleaning concrete (score: 1): Author: "Randall" <tr3driver@comcast.net>; Date: Mon, 10 Oct 2005 11:32:26 -0700; I've got rust stains on the plaster of my pool, where vandals threw in iron/steel objects (like the lock off my stolen bicycle). Muriatic doesn't seem to touch them. But Home Depot sells the Zep equ; /html/shop-talk/2005-10/msg00052.html (6,991 bytes)

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