Polishing concrete for BBQ


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Old 02-21-18, 02:07 PM
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Polishing concrete for BBQ

Hi Im thinking about making a concrete countertop for my outdoor BBQ. The area is about 3 x 6 with my BBQ in the middle. I read online where the concrete can be polished smooth using an orbital sander and diamond pads. This is a small project and I dont want to buy an orbital sander. (low budget) Any ideas for polishing the concrete? Are there drill attachments I can use? Thanks
 
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Old 02-21-18, 04:03 PM
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Work like an Egyptian... Yes, you can do it but without the "proper" tools it will take a lot of time and effort. A orbital sander can do it but depending on how bad the concrete is and how smooth you want it may take a long time and a lot of sanding pads. Best would be to use a diamond polisher. I would first check to see if you can rent one. $50 for a half day rental might be the best money you spend.
 
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Old 02-21-18, 05:27 PM
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I have never done this but I find it hard to believe you will polish a slab of concrete in 1/2 day.

Renting tools (there are exceptions I fully agree) is simply a wast of money, for small power tools what they charge you can put that toward a quality used tool and then if really motivated sell it when done.

Tools are not an expense, they save me thousands of dollars every year, they are a necessity of life!
 
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Old 02-24-18, 06:03 AM
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you'll have better luck using a steel pool trowel to 'burn' the surface by hand,,, ck eBay for polishing pads - probably only need to go up to 400grit after which you can put on a good sealer
 
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Old 02-24-18, 08:53 AM
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I've done some grinding on concrete and the most impressive surfaces were from the embedded stones. My work was just to alter the concrete floor but some areas sure looked nice.

I have read that using selected stones in the top surface will give you great results.

I use a diamond cup with a grinder or right angle drill. I agree with investing in tools but stop and talk with your local rental store, I have always found them friendly, experienced, and with good advice.

Note, to polish the stones near the surface you will need a good diamond grinder, orbital sander I would think not.

Bud
 
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Old 02-24-18, 04:36 PM
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we'd have 2hrs into that size if polishing w/hand tools BUT we also have a sull set of diamonds up to 800 grit
 
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Old 03-01-18, 01:41 PM
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Thanks for all your input. I have some thinking to do.
 
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Old 03-16-18, 10:11 AM
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I decided to go with tile. Thanks for all your help
 
 

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