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submarine_dbk
Junior Nomad
Posts: 66
Registered: 9-5-2006
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Stucco sealers?
Looking for information/experiences (beyond the marketing hype found on manufacturers websites) with stucco sealers - in particular elastomeric
sealers. Primary desire is to seal exterior from excessive water load due to wind driven rain.
Pros/Cons? Worthwhile?
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mtgoat666
Select Nomad
Posts: 18388
Registered: 9-16-2006
Location: San Diego
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Mood: Hot n spicy
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| Quote: | Originally posted by submarine_dbk
Looking for information/experiences (beyond the marketing hype found on manufacturers websites) with stucco sealers - in particular elastomeric
sealers. Primary desire is to seal exterior from excessive water load due to wind driven rain.
Pros/Cons? Worthwhile? |
stucco is meant to be permeable. in climates where rain is infrequent, best to leave stucco unsealed.
try putting on a new top coat of stucco. top coat (color layer) is usually finer grained than base layers, so less permeable.
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Russ
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Location: Punta Chivato
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I think it's worth it. My last house was block with rock facing. During the heaviest rains the block would saturate and fill the empty block cells and
I'd have water running down the walls on the storm side. The worst part of that is the cells hold water a long time and there is really no way to dry
them out until Winter. By that time things smell like a closed up beach house. On my casita I'm in now I painted it with a simi solid stain. I got the
color I wanted and it doesn't peel or crack like some paints do. I just built a garage and had the contractor finish the walls with the brown coat.
We've (some of us) had really bad luck with stucco here. The stain seems to help but it's not a cure.
[Edited on 7-1-2009 by Russ]
Bahia Concepcion where life starts...given a chance!
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bajaguy
Elite Nomad
Posts: 9247
Registered: 9-16-2003
Location: Carson City, NV/Ensenada - Baja Country Club
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Mood: must be 5 O'clock somewhere in Baja
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DryLok
look at this product
http://www.ugl.com/drylokMasonry/masonryWaterproofer/latex.p...
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redmesa
Senior Nomad
Posts: 580
Registered: 3-12-2008
Location: Van Isle and Bahia Asuncion
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A topic of big interest to us. I have been doing some homework on this topic. So far, I have priced and talked to Behr and Cloverdale. All are
stated and warrantied to be: Waterproof, Breathable, flexible , mildew resistant, and bridge hairline cracks. They are also here in Canada very
expensive. It takes 2 coat that cover 150 sq. ft. per coat. Behr is 165.00 CAD and Cloverdale is 204.40 CAD fpr 5 gallons. Behr has fewer color
options. Please let me know what you find out.
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submarine_dbk
Junior Nomad
Posts: 66
Registered: 9-5-2006
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Mixed research
In theory, I love the idea of the clear elastomeric coatings, but I've done a lot of manufacturer and DIY web site reading and am now more confused
than informed. Some sites claim elastomerics are breathable and will allow trapped moisture to be released while others claim just the opposite.
Some articles contradict themselves.
My primary concern is that moisture that may make it's way in thru larger cracks will be trapped and cause mold problems over time or if around
windows, may eventually cause window frame rot.
If I find more definitive information I'll post.
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bajaguy
Elite Nomad
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I have a painter friend who won't use elastomeric paints....says they don't breathe
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oldlady
Banned
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Registered: 10-31-2005
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Dunn Edwards' Eff-stop.
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oladulce
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I used this water based, product on color-coated stucco and liked it. Water would bead up on the surface when the walls got wet and it slowed down
the rate of saturation when it rained heavily. Spray it on with a garden sprayer. Goes on easily and it's concentrated and goes a long way.
It held up well in desert sun and lasted about 5-6 years before it looked like the walls needed a re-coat.
It's by Glaze N Seal
Natural Look Penetrating Sealer
But we got tired of babysitting stucco color-coat with the cracks and chipping. Nowadays we paint the stucco walls and hardly know what to do with all
the leisure time 
I agree with oldlady, Dunn Edwards Eff-stop primer followed by DE paint is what we use too. It's worth importing and hauling it down because of the
increase in lifespan it gives to walls.
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capt. mike
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if you have a proper moisture barrier behind the foam/wire/lath etc - like 15 # felt - and a weep screed at the plate then you can seal stucco.
formerly Ordained in Rev. Ewing\'s Church by Mail - busted on tax fraud.......
Now joined L. Ron Hoover\'s church of Appliantology
\"Remember there is a big difference between kneeling down and bending over....\"
www.facebook.com/michael.l.goering |
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woody with a view
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we use elastomeric paint on most of our jobsites. it costs more for sure, but it is better than just a thin coat of paint. if you are near the ocean i
wouldn't use anything else.
and don't let your painter dilute your paint with water so it goes farther....
edit: never heard of what Dulce is refering to but it sounds interesting....
[Edited on 7-1-2009 by woody in ob]
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El Jefe
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When our house was new the painter used elastomeric paint, but we think he cut it or did not apply enough coats. After the first tropical rain storm,
lots and lots of weepy blisters appeared on the walls. Water got trapped behind the paint. Once the blisters dried out they looked like saggy skin. I
had to scrape and re-paint the house. Wish we used regular paint in the first place. Elastomeric may have worked if it had been properly applied, but
we will never know.
No b-tchin\' in the Baja.
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redmesa
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Location: Van Isle and Bahia Asuncion
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As always there seems to be varying opinions on this product. Wish we Knew for sure since it will be very expensive to use.
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woody with a view
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it's all in the prep and application. make sure your stucco is cured properly. apply your paint per mfgr req's with a sprayer followed by a heavy
roller to even it out. in baja i guess the sprayer is not always an option so the heavy roller(s) should suffice.
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Crusoe
Senior Nomad
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Registered: 10-14-2006
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You may try a product MAREXITE. It is an all purpose sealer for use on bare steel as well as wood and concrete. It is very pricey but really does a
top-notch job. As the story goes.... It was developed for sealing the new bare steel on the Golden Gate Bridge applied before any red lead primer or
finish paint. It is still manafacured in San Fran. Good luck. ++C++
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SKIDS
Junior Nomad
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Registered: 3-10-2009
Location: Jamul Ca.
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WE PUT THOMPSONS WATERSEAL AROUND OUR HOUSE UP 4' 4 YEARS AGO. NO STAINS .LOOKS GREAT. WE USED SYNTEX PLASTER WITH A SANTA BARBRA FINISH.
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rocmoc
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Posts: 234
Registered: 5-25-2009
Location: Tucson, AZ
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Mood: Live today like it maybe your LAST!
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| Quote: | Originally posted by mtgoat666
| Quote: | Originally posted by submarine_dbk
Looking for information/experiences (beyond the marketing hype found on manufacturers websites) with stucco sealers - in particular elastomeric
sealers. Primary desire is to seal exterior from excessive water load due to wind driven rain.
Pros/Cons? Worthwhile? |
stucco is meant to be permeable. in climates where rain is infrequent, best to leave stucco unsealed.
try putting on a new top coat of stucco. top coat (color layer) is usually finer grained than base layers, so less permeable.
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AGREE! But if you have to, leave the last 6" or more at the bottom of the wall unsealed so any trapped moisture can weep out. If you don't, you take
a big chance of getting MOLD inside the wall. This is a problem found even with putting simple exterior house paint on a wall. Trapped water will
start to degrade the painted surface, stucco & possible mold. Do a search on Google and you will find plenty of info regarding these potential
problems. This was not a problem in the old days of oil based paints, but with the new latex paints it is a problem. Good luck!
rocmoc n AZ/Mexico/Idaho
[Edited on 7-3-2009 by rocmoc]
rocmoc n AZ/Mexico
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Bob and Susan
Elite Nomad
Posts: 8813
Registered: 8-20-2003
Location: Mulege BCS on the BAY
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remember here in mulege it ONLY rains about 5 days a year...
why waste your time on hard to apply plastic paint...
i would paint with a "regular" good latex paint...nothing else
dont fight "the wave"
the sun is going to do more damage than water
if it looks like you are having moisture problems its probably just faulty stucco
sometimes builders use "un-clean" sand
or they mix the cement wrong
it doesnt last
maybe they patched the windows after the inital stucco coat
this patch stuff might not be as good
the wood around windows needs to be treated for damage
bugs will probably be your biggest problem (IMHO)
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rocmoc
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Posts: 234
Registered: 5-25-2009
Location: Tucson, AZ
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| Quote: | Originally posted by Bob and Susan
remember here in mulege it ONLY rains about 5 days a year...
why waste your time on hard to apply plastic paint...
i would paint with a "regular" good latex paint...nothing else
dont fight "the wave"
the sun is going to do more damage than water
if it looks like you are having moisture problems its probably just faulty stucco
sometimes builders use "un-clean" sand
or they mix the cement wrong
it doesnt last
maybe they patched the windows after the inital stucco coat
this patch stuff might not be as good
the wood around windows needs to be treated for damage
bugs will probably be your biggest problem (IMHO) |
Agree but leave the bottom 6" unpainted. If you have to repair or re-stucco, use a shovel full of Lime (not the fruit for your drink as you are
working) with each bag of stucco. The lime makes the stucco more sticky and harder. One of the things the manufactures have done to save/make money
is cut back on the amount of lime in the mix of each bag of stucco. Also use the one coat fiberglass reinforced stucco ease.
rocmoc n AZ/Mexico/Idaho
rocmoc n AZ/Mexico
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Bajabuff
Newbie
Posts: 17
Registered: 11-12-2008
Location: Playa La Mision & Sherman Oaks, CA
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Hi, cementous based sealers work well.
http://www.thoroproducts.com/pdf_info/INF_TSEAL_3.06.pdf
Use a minimum of two coats, 3 better. It comes in white and gray. I use alternate coats 1st white, then gray, then white again, if used. Using
alternate colors helps to spot voids and misses. It is easy to apply with a broad fiber brush, sometimes refered to as a "dutch" brush. Caveat: It
won't stick to a previously painted surface unless the paint had a cementous base. Dick
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