Sandblaster to remove paint from concrete foundation?

[sandyut]

So previous owner of our house painted parts of the concrete foundation and I really dont like it.

Im thinking sand blasting is the best option??? But that raises many questions about what to blast with. HD has several media types and I am bit confused on what media I should use. this is the blaster Im thinking about.

If anyone has experience with removing paint from concrete and using a sand blaster, I would love to hear from you.

 

[normanaj]

If you're talking any significant amount that little unit probably ain't gonna cut it.What PSI compressor do you have?

I'd try a power washer first,2300psi or greater.

A lot depends on the soundness of the surface to what method and at what psi to go with.If you lose a little surface you can always parge the surface.

You might want to look into renting a sandblaster/power washer.And if you know someone with a Dustless system that would truly be the way to go but that won't come cheap.

The truly cheapest way to go is give the foundation a power washing with a decent cleaner additive and paint the entire foundation in concrete color.

 

[sandyut]

If you're talking any significant amount that little unit probably ain't gonna cut it.What PSI compressor do you have?

I'd try a power washer first,2300psi or greater.

A lot depends on the soundness of the surface to what method and at what psi to go with.If you lose a little surface you can always parge the surface.

You might want to look into renting a sandblaster/power washer.And if you know someone with a Dustless system that would truly be the way to go but that won't come cheap.

The truly cheapest way to go is give the foundation a power washing with a decent cleaner additive and paint the entire foundation in concrete color.

It not a huge area, but I wouldnt says its small either. Trying to keep the budget low...As much as I would love to buy a power washer - the boss doesnt like the cost.

watched some YouTubes and they used a grinder with a cup wheel. I have a grinder... Whatcha think about that?

 

[Colin1230]

Just my opinion David. That little blaster, as cool as it is, is just not up to the task at hand. The angle grinder with cup wheel will make short work of removing the paint but may leave behind an undesirable pattern. normanaj advice is solid. If repainting it battleship grey won't do, then have it professionally blasted back to its original state.

 

[sandyut]

Hmmm...maybe i'll watch for a sale on the power washer...

 

[BigW.]

Hmmm...maybe i'll watch for a sale on the power washer...

Power washing is one of my favorite activities. Good chance a neighbor has one or you can rent from Home Depot etc.

 

[normanaj]

Hmmm...maybe i'll watch for a sale on the power washer...

Unless it's something you'll use on a regular basis I'd look at renting one for 1/2 to full day.If you do end up buying I'd look at a plug-in electric,they've come a long way as far as psi goes.

 

[Colin1230]

I've got the EZGo pressure washer and it works pretty good for small jobs like washing the car or cleaning the patio but lacks the horsepower and longevity of a gas powered washer. Plus, not practical if you're not already committed to that battery platform.

 

[zwiller]

If that were me I'd try pump spraying Citristrip then hitting it with the PW. I have HD80 and made for wood but know it work. Might be worth getting some scrubber tools that work with your cordless. Rent a decent PW for the day. Honestly tho, LOTS of PW cos do this type of stuff and have the tools and chems. Bet they could bang it out cheap.

 

[Winterrider]

sandyut , I can vouch for this little unit. Borrowed a co-workers, it worked great.

https://www.harborfreight.com/air-tools-compressors/air-tools/blasting-cleaning/110-lb-pressurized-abrasive-blaster-59471.html

 

[JckDanls 07]

I'm thinking just stucco over it...

 

[ifitsdeadsmokeit]

If I were still in co I would lend you mine but live in MO now. I ran into this in my kc house where they painted foundation. I roughened up the paint with a grinder quite a bit. Nailed/screwed on metal lathe and did a rough scratch coat. Then I mortared on rock. You could also do tile but would need a little smoother scratch coat.

 

[JIMSMOKES]

sandyut , I can vouch for this little unit. Borrowed a co-workers, it worked great.

https://www.harborfreight.com/air-tools-compressors/air-tools/blasting-cleaning/110-lb-pressurized-abrasive-blaster-59471.html

Needs a very good compressor to drive it.
My 10hp Curtis couldn't keep up continuously.
sandyut If own home and have a place to store a PW. Buy the biggest you can it'll serve you well.

 

[Fueling Around]

A decent pressure washer with one of those rotary (turbo) tips will remove an amazing amount of things. It will also do a decent job removing oil stains from your driveway.
Buddy of mine had a 5,000 psi unit that he lets me use. I bought a turbo tip for it.

When thinking of sand or water remember that it has to go somewhere after attacking the surface.
With my heavy soil, water will pool up quickly.

 

[sandyut]

HD has a rental for $90 a day. Thanks for all the input! Very helpful!

 

[Winterrider]

Needs a very good compressor to drive it.
My 10hp Curtis couldn't keep up continuously.
sandyut If own home and have a place to store a PW. Buy the biggest you can it'll serve you well.

True, I had an older Craftsman 13 hp, 150 gal that held its own.

 

[chopsaw]

You need the right duty cycle on air compressors depending on the task at hand .

 

[sandyut]

You need the right duty cycle on air compressors depending on the task at hand .

Im sure my compressor will not do the job.

Maybe I'll just leave this to next summer...

 

[chopsaw]

I’d get a price to have someone do it . Might not be as much as you think .

 

[sandyut]

I’d get a price to have someone do it . Might not be as much as you think .

Thank you! This might be the best idea.

I should have a handyman out for another project in a month or two, I'll just ask him.