Prep for garage floor in northeast


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Old 08-20-08, 07:20 AM
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Cool Prep for garage floor in northeast

Planning to either paint or epoxy our 2-car garage floor in NJ, near beach area. Did moisture test with a patch, no moisture coming up thru floor. Patched a crack. Now ready to prep floor and getting lots of differing advice: (1) Sand it, vacuum, thin out floor paint and use as sealer and then paint w/ floor paint, was one. (2) Another said to etch floor first, then epoxy. (3) Still another said just wash w/ TSP and hose out [That's a tough one since garage is drywalled and insulated], dry, and paint. (4) Another said we should use penetrating moisture-sealer first, before either painting or epoxying.
Garage is not now used for car traffic, but selling house in 2-3 yrs and new owner might. Want it to still look good. Current concrete floor has paint spots, etc. but no oil stains. Advice? Thanks.
 
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Old 08-20-08, 12:55 PM
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Welcome to the forums!

No matter what coating you decide to use - it's imperitive that the concrete be clean! If the floor is slick [not porous] you need to acid etch and rinse well. If the floor finish is somewhat porous - washing with tsp may be sufficent. There is no getting around using water to rinse!

I prefer to use a concrete stain because prep isn't quite as critical and while it will wear away over time/use, it won't peel. A stain may not completely cover any paint drips/spots, so these should be scraped off first.
 
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Old 08-20-08, 05:02 PM
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Thanks! Never thought of staining it...will def. consider. Floor is not slick (if slick is like Home Depot's floor! <smile>) but there are a bunch of stains, etc. all over. If I did decide to sand those out first, can I just stain over top of that or is a sealer needed first? Thanks again.
 
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Old 08-21-08, 04:53 AM
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I doubt you will do much good with a sander unless you mean to rent a scarator which basically removes a thin top layer of concrete. I've had good results using a commercial grease removing detergent and a pressure washer.

Without seeing the grease stains or knowing the color/type of stain you plan to use, it is hard to say if/how noticable they will be if you stain over them. Concrete stain will seal the floor.
 
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Old 08-21-08, 06:30 PM
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Thanks! Will try and will keep you posted!
 
 

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