Cinderblock Foundation Reseal Preparation


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Old 06-24-08, 07:23 AM
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Question Cinderblock Foundation Reseal Preparation

I have a ranch home which I believe to be 70 years old. The foundation wall is cinderblock. There are cracks, gaps and other deterioration of the sealant. I have been told to pressure wash it and reseal it. Please advise me as to the pressure needed to properly prep the surface for resealing.

Thank you.
 
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Old 06-24-08, 12:20 PM
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I wouldn't go over board with the pressure - you don't want to force water thru the foundation The main thing is to have a clean solid surface to work with.

What type of sealant is on the block? stucco? paint?
 
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Old 06-26-08, 05:43 AM
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Lightbulb Existing Cinderblock Sealant

Thank you for the reply. It suggests that I can get by with an inexpensive washer providing 1400~1800 PSI. Is that correct?
As to the current surface:
Definately not Stucco.
Below grade it appears to be black paint.
Above grade it appears to be white paint.
Thank you
 
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Old 06-26-08, 06:46 AM
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I'm rarely fond of a lot of high pressure - too easy to cause damage so a smaller pressure washer should do fine. A combination of pressure washing and scraping should remove any loose paint. If the surface is chalky after cleaning you should add emulsa bond to the first coat of paint. Small cracks can be filled with latex caulking. Large gaps may require mortar.

The black is a foundation grade tar - used to seal and prevent moisture infiltration.
 
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Old 06-27-08, 08:21 AM
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Question

My local Ace Hardware is offering a 1400 psi pressure washer for ~$60 after a $25 mail in rebate thru Sunday. My concerns are that: no brand is identified; the search for its product number on the
http://www.acehardware.com/home/index.jsp
website does not locate this product; and, an entirely different appearing pressure washer with the same product number is shown on the website of a different Ace Hardware. The product number is 1206044. The item is shown as:
http://acehardware.shoplocal.com/ace...dace-080627EVN
The only information provided is:
1400 psi, 1.5 gpm
120 volt, 12 amp universal motor, 15' pressure hose, adjustable tip nozzle
Includes low pressure foamer

The other Ace Hardware page is:
http://www.acehardwareoutlet.com/(yy...rce=GoogleBase
and the given product description is:
FAIP TM1400US "1400 PSI" POWER WASHER BLUE
"FAIP" POWER WASHER
1300 psi, 1.5 gpm
120v, 12 amp universal motor
Cleans concrete, decks, siding, and lawn equipment
Automatic total stop
Lightweight and portable
Pro style trigger handle with lock
Insulated bayonet style wand
19 pressure hose
Dual nozzle-adjustable or turbo functions
35 power cord with GFCI
1 year warranty parts & labor
Boxed

Would 1300 or 1400 psi be adequate or might I have reason to buy a unit with more/less pressure?
 
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Old 06-27-08, 08:25 AM
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Question P.s.

Do I need a special pressure washer detergent or will some common grease cutting detergent do?
 
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Old 06-27-08, 06:17 PM
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Personally I don't like electric pressure washers [water and elec don't mix ] but I understand about an elec motor being more reliable for infrequent use.

I never run any cleaning agents thru my pressure washer, I always apply them seperately, often with a pump up garden sprayer. What type of cleaner to use, depends on what needs to be cleaned off.
 
 

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