diamond plate polishing
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Fleet Mechanic
Joined: Feb 2008
Posts: 1,645
Likes: 4
diamond plate polishing
Morning guys, I'm at work and I've got a project on the boat that I need some help with. My engine room has aluminum diamond plate deck plates. Its a big space maybe 50'x 40' with various different size pieces of plate. I can bring them up on the stern to polish them. I have a Dewalt 7" grinder that's an 8000 rpm non variable speed. So, question what do I need to get this job done? I'll need a compound (bar), polish or a combination of both and a buffing wheel for the grinder but I have no idea where to start; so much info out there but It's daunting and I need to put in a "requisition" for whatever's needed so the company's buyer can get the products coming. We usually buy from Grainger or McMaster Carr. So basically I need to know what products to order. Any help with this will be great.. The other engineer totally ****ed up the deck plates by acid washing them and they look like dull **** now; I've been pissed off since I got on the boat last night... You can see that the last pic still has a few that are polished, he didn't get a chance to screw those up yet.. Thanks guys.
Post Fiend
Joined: Dec 2009
Posts: 15,505
Likes: 18
From: Livoina,La
For a walking area is go for a cleaner over polish.
Chief's Choice: Diamond Plate Cleaner - TheFireStore
Chief's Choice: Diamond Plate Cleaner - TheFireStore
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Fleet Mechanic
Joined: Feb 2008
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Likes: 4
Nope, they came polished.
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Thread Starter
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Fleet Mechanic
Joined: Feb 2008
Posts: 1,645
Likes: 4
For a walking area is go for a cleaner over polish.
Chief's Choice: Diamond Plate Cleaner - TheFireStore
Chief's Choice: Diamond Plate Cleaner - TheFireStore
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Junior User
Joined: Aug 2014
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This is gonna be a tough one. Only thing I can think of is to contact one of those guys that polishes big trucks. Try the Peterbilt 379 enthusiast's page on facebook. There's a couple of guys on there that post pretty regularly and I think they may have some u-tube videos up also.
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Fleet Mechanic
Joined: Feb 2008
Posts: 1,645
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Thanks man, looks like some familiar stuff.. Unfortunatly our major accts are with Grainger and McMaster Carr.. If I had free rein then this would be a lot easier I'm sure..
Mountain Pass
Joined: Nov 2015
Posts: 226
Likes: 45
From: Louisville KY
For polishing aluminum, I've had some experience with Busch, Wicked and Magic Mix products with some decent success. However once things are acid washed white, hard to beat plan rouge bars as listed on the McMaster-Carr website. Buffing out aluminum makes a mess, but rouge bars in steps work pretty well.
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Fleet Mechanic
Joined: Feb 2008
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Thanks, thats what I thought.. Most of what I've seen calls for 1/2 my speed at 3500-4000 rpm.. Gunna have to find a veriable speed buffer..
Lead Driver
Joined: Apr 2016
Posts: 7,202
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From: Bahstun
if your buffer has motor brushes, you can use a variac to slow it down unless you have 48 VDC on the ship.
I ran an old sawzall and circular saw on 4 truck batteries to fix a cabin off the grid
I ran an old sawzall and circular saw on 4 truck batteries to fix a cabin off the grid
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