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CheriSwanson
Acid Stained Porch Disaster
CheriSwanson

I decided to tackle the job of acid staining my back porch on my own. I cleaned it thoroughly, then applied Kemiko Walnut stain with a sponge. I was so proud of it....until later. I had decided not to seal it because my son said the guy who did his for his new home did not recommend sealing outdoors because the sealer wouldn't last and would have to be stripped every time it was sealed. Anyway, my porch looked pretty good to me. I washed off the residue with a high pressure hose about an hour after it dried (was sunny, warm day). Later that day a storm came. I was thinking good timing that I finished before storm. The next morning when I got up my porch had many dark areas on the porch (some large). I thought maybe I did not scrub the residue off well enough so washed again with a mild concrete cleaner. When wet it doesn't look too bad (looks like I used a darker color also, but a couple of areas larger than I would like with the blackish pigmentation). I am thinking maybe I should just go ahead and seal it and live with some areas being large dark spots. Any advice would be greatly appreciated! What are my options at this point? I know I should have hired someone to do this, but it was only a porch and I thought I could do it myself. What could have gone wrong?:confused: (I can post pictures if I need to. At work now and do not have pic with me.)

dj1
Re: Acid Stained Porch Disaster
dj1

Sealing the deck now will not change its look. You could try re staining, using solid stain.

ed21
Re: Acid Stained Porch Disaster
ed21

Seal the concrete per what the manufacturer recommends. Many different kinds of sealers. You probably want one that seals against water, but not a shiny, varnish like finish.
Staining old concrete can be a crap shoot. No telling what has been applied or spilled on the slab. Unless the slab is ground/abraded any previous product applied may affect the finish.
Unless the staining is really objectionable, I would probably just seal it and hope exposure to sunlight and weather evens it out.
First thing I would do is contact the manufacturer and try to get a recommendation for a solution.

CheriSwanson
Re: Acid Stained Porch Disaster
CheriSwanson

[QUOTE=ed21]Seal the concrete per what the manufacturer recommends. Many different kinds of sealers. You probably want one that seals against water, but not a shiny, varnish like finish.
Staining old concrete can be a crap shoot. No telling what has been applied or spilled on the slab. Unless the slab is ground/abraded any previous product applied may affect the finish.
Unless the staining is really objectionable, I would probably just seal it and hope exposure to sunlight and weather evens it out.
First thing I would do is contact the manufacturer and try to get a recommendation for a solution.[/QU

The concrete is only three years old, not that old. I am the only owner. The more I look at it the better I am liking it so I guess I will just seal it and will follow your suggestion to contact the manufacturer for recommendation. When I look ****** at stained concrete floors several have dark areas. It looks as if I used two different color stains. Thanks for advice!

ed21
Re: Acid Stained Porch Disaster
ed21

I'm more familiar with commercial concrete staining and the effect is usually a mottled appearance not what you get when staining wood. So maybe you have the right attitude. :o

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