Prep and paint stucco


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Old 09-29-14, 04:07 PM
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Prep and paint stucco

I have a buddy that has an older house that has stucco. He is planing to paint it (it is painted now) and is going to get his paint from a paint store. He was asking me how I would wash and clean the stucco to get it ready for paint. He was thinking of using a pressure washer but I suggested a garden hose, some TSP and a stiff broom. Am I off base?
 
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Old 09-29-14, 05:16 PM
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I'd say it depends on the texture to some extent. Course texture like out here, the broom wouldn't do much except break off small particles w/o really getting into the texture grooves. Smooth surface like more modern homes it would probably work ok.

I doubt TSP is really necessary either, dish soap or laundry soap would probably work fine. I'd probably spray a section down using the low pressure detergent suction on the washer or a pump up sprayer, then go back with higher pressure and a fairly wide nozzle.

Mark has plenty of stucco experience I believe.
 

Last edited by Gunguy45; 09-30-14 at 08:01 AM.
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Old 09-30-14, 05:04 AM
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What is the condition of the existing paint job? Latex paint won't adhere long term to chalk and degraded latex paint often turns chalky. IMO TSP is best for removing chalk, add bleach if there is mildew. Be sure to rinse well as TSP residue can also cause adhesion issues. Often it isn't feasible to remove all the chalk but it can be treated by either applying a masonry conditioner [oil base] or adding the proper amount of Flood's EmulsaBond to the 1st coat of latex. How much EB to add is dependent on how chalky it is.

I always apply the cleaner with a pump up sprayer and then rinse with either a PWer or garden hose. I only use an old broom on stubborn areas
 
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Old 09-30-14, 06:04 PM
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Thanks guys. I will send him a link to this page. I don't think he has a lot of chalking and the existing paint is in good shape, they just want something other then white.
 
 

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