Hi, I have colored stucco on my home, and it has been 12 years. It has
never been painted. I plan to hire someone to paint the stucco with
the original color. There is an area where the wall has some mildew
stains on it. After I kill off the mildew, is there a product that can
be mixed with the paint to help repel water? Or something that can be
applied after painting, such as a water sealer?

Anyone has experience with Okon PaintBooster? http://www.okoninc.com/productPg-PaintBooster.asp.
I heard mixing paint with any water repeller may weaken the paint.

I plan to use either Dunn Edwards EverShield or Sherwin Williams
SuperPaint. Which one is better for exterior stucco?

Thanks

In article
,
" wrote:

Hi, I have colored stucco on my home, and it has been 12 years. It has
never been painted. I plan to hire someone to paint the stucco with
the original color. There is an area where the wall has some mildew
stains on it. After I kill off the mildew, is there a product that can
be mixed with the paint to help repel water? Or something that can be
applied after painting, such as a water sealer?

Anyone has experience with Okon PaintBooster?
http://www.okoninc.com/productPg-PaintBooster.asp.
I heard mixing paint with any water repeller may weaken the paint.

I plan to use either Dunn Edwards EverShield or Sherwin Williams
SuperPaint. Which one is better for exterior stucco?

Thanks

see he

http://www.castlebri.com/documents/Stucco%20Care.pdf

and from another site:

"Ordinary house paint seals the pores on stucco. And as the stucco
expands and contracts, the paint cracks, breaking the seal. Then water
enters the stucco, gets trapped inside, and pretty soon the paint starts
to delaminate. It doesn't take long before you're left with sections of
bare stucco and patches of paint‹not a pretty sight.

However, you can use elastomeric paint, which is formulated for stucco.
It expands and contracts with the stucco and resists cracking (one brand
is Valspar Duramax Elastomeric Exterior Masonry and Stucco Paint).
Elastomeric paints also breathe, allowing moisture to get out. The best
part: DIYers can apply it themselves.

If you don't want to paint your stucco, consider hiring a contractor to
³fog² it. Fogging contractors use a special spray gun that combines a
colorant with a thin cement slurry. Fogging is much faster and cheaper
than dashing and lasts almost as long."

wrote:
Hi, I have colored stucco on my home, and it has been 12 years. It has
never been painted. I plan to hire someone to paint the stucco with
the original color. There is an area where the wall has some mildew
stains on it. After I kill off the mildew, is there a product that can
be mixed with the paint to help repel water? Or something that can be
applied after painting, such as a water sealer?

Anyone has experience with Okon PaintBooster?
http://www.okoninc.com/productPg-PaintBooster.asp. I heard mixing
paint with any water repeller may weaken the paint.

I plan to use either Dunn Edwards EverShield or Sherwin Williams
SuperPaint. Which one is better for exterior stucco?

Thanks

No idea which of the paints is better but any decent acrylic paint will work
just fine on stucco.

We repainted our stucco over concrete block house about 2 1/2 years ago.
The paint that was there was 14 years old and was chalking but not peeling.
It was a middle grade acrylic.

The paint itself will repel water. Some people like to use a sealer before
the paint so that the stucco doesn't suck up as much paint. Around here -
central Florida - Original Seal Krete is popular for that purpose. It is
just a clear, acrylic "paint" with minimal acrylic and no color. It can be
applied with a garden sprayer. It is the same thing as your Okon Paint
Booster but has less acrylic, price is around $12/gallon.
http://www.seal-krete.com/

My suggestions for you would be...

1. Power wash
2. Optionally, apply sealer
3. Paint


--

dadiOH
____________________________

Winters getting colder? Tired of the rat race?
Maybe just ready for a change? Check it out...
http://www.floridaloghouse.net

On Dec 4, 7:39*am, "dadiOH" wrote:
wrote:
Hi, I have colored stucco on my home, and it has been 12 years. It has
never been painted. I plan to hire someone to paint the stucco with
the original color. There is an area where the wall has some mildew
stains on it. After I kill off the mildew, is there a product that can
be mixed with the paint to help repel water? Or something that can be
applied after painting, such as a water sealer?

Anyone has experience with Okon PaintBooster?
http://www.okoninc.com/productPg-PaintBooster.asp. I heard mixing
paint with any water repeller may weaken the paint.

I plan to use either Dunn Edwards EverShield or Sherwin Williams
SuperPaint. Which one is better for exterior stucco?

Thanks

No idea which of the paints is better but any decent acrylic paint will work
just fine on stucco.

We repainted our stucco *over concrete block house about 2 1/2 years ago.
The paint that was there was 14 years old and was chalking but not peeling.
It was a middle grade acrylic.

The paint itself will repel water. *Some people like to use a sealer before
the paint so that the stucco doesn't suck up as much paint. *Around here -
central Florida - Original Seal Krete is popular for that purpose. *It is
just a clear, acrylic "paint" with minimal acrylic and no color. *It can be
applied with a garden sprayer. *It is the same thing as your Okon Paint
Booster but has less acrylic, price is around $12/gallon.http://www.seal-krete.com/

My suggestions for you would be...

1. Power wash
2. Optionally, apply sealer
3. Paint

--

dadiOH
____________________________

Winters getting colder? *Tired of the rat race?
Maybe just ready for a change? *Check it out...http://www.floridaloghouse.net- Hide quoted text -

- Show quoted text -

In additon to the good advice already give, there are
products you can buy at the paint store that you can
mix with the paint to help inhibit mildew. Don't know how
well they work or last. But if the mildew took many years
to develop, the simplest thing may be to just power wash
it as needed.

On 12/4/2012 1:21 AM, Smitty Two wrote:
In article
,
wrote:

Hi, I have colored stucco on my home, and it has been 12 years. It has
never been painted. I plan to hire someone to paint the stucco with
the original color. There is an area where the wall has some mildew
stains on it. After I kill off the mildew, is there a product that can
be mixed with the paint to help repel water? Or something that can be
applied after painting, such as a water sealer?

Anyone has experience with Okon PaintBooster?
http://www.okoninc.com/productPg-PaintBooster.asp.
I heard mixing paint with any water repeller may weaken the paint.

I plan to use either Dunn Edwards EverShield or Sherwin Williams
SuperPaint. Which one is better for exterior stucco?

Thanks

see he

http://www.castlebri.com/documents/Stucco%20Care.pdf

and from another site:

"Ordinary house paint seals the pores on stucco. And as the stucco
expands and contracts, the paint cracks, breaking the seal. Then water
enters the stucco, gets trapped inside, and pretty soon the paint starts
to delaminate. It doesn't take long before you're left with sections of
bare stucco and patches of paint‹not a pretty sight.

However, you can use elastomeric paint, which is formulated for stucco.
It expands and contracts with the stucco and resists cracking (one brand
is Valspar Duramax Elastomeric Exterior Masonry and Stucco Paint).
Elastomeric paints also breathe, allowing moisture to get out. The best
part: DIYers can apply it themselves.

If you don't want to paint your stucco, consider hiring a contractor to
³fog² it. Fogging contractors use a special spray gun that combines a
colorant with a thin cement slurry. Fogging is much faster and cheaper
than dashing and lasts almost as long."

There are 2 kinds of advice for stucco.

One is for stucco over concrete block, common in the south, where the
stucco is often painted.

The other is for stucco over wood frame construction, common in the
north. I have always heard painting is not a good idea, as in Smitty's
link. One reason is that the surface goes from a low maintenance stucco
to a higher maintenance painted surface. There can also be problems if
humid air migrates from inside the house out through the stucco, which
depends on what the vapor barrier is. Paint needs to "breathe". There is
a recent thread on stucco with a long post by nestork on stucco
paint.

On Mon, 3 Dec 2012 22:59:00 -0800 (PST), "
wrote:

Hi, I have colored stucco on my home, and it has been 12 years. It has
never been painted. I plan to hire someone to paint the stucco with
the original color. There is an area where the wall has some mildew
stains on it. After I kill off the mildew, is there a product that can
be mixed with the paint to help repel water? Or something that can be
applied after painting, such as a water sealer?

Anyone has experience with Okon PaintBooster? http://www.okoninc.com/productPg-PaintBooster.asp.
I heard mixing paint with any water repeller may weaken the paint.

I plan to use either Dunn Edwards EverShield or Sherwin Williams
SuperPaint. Which one is better for exterior stucco?

Thanks

Is the mildew on the north side of the house with plenty of shade?
Perhaps thinning a tree would provide more sun light and help reduce
mildew. Using a dilution of bleach water in a garden sprayer on the
mildew will kill it. Wash from top to bottom.

Then power wash the house (top to bottom). Allow to dry well before
paint is applied.

Elastomeric acrylic latex paint is an excellent choice for stucco.
Three sides of my house paint are 14 years old, which still looks good
(desert SW). The back was painted 8 years ago when I added a patio
cover.

I never use any sealer of add anything to the paint. Make any minor
repairs in the stucco if you have hairline cracks, etc. Acrylic latex
paintable caulk is what use

My neighbor just had his home painted a couple of weeks ago with Dunn
Edwards paint. I'm impressed in how it turned out. Single story,
doors, trim, (non-elastomeric) etc., cost him $1600.00 and was sprayed
on. I use Behr stucco-masonry paint from HD.

Follow the temperature recommendations on the label when you paint.

You should probably be aware that neither Sherwin Williams nor Dunn Edwards make any of the stuff they mix together to make their house paints. In fact, as of about 10 years ago, Sherwin Williams was using an acrylic binder resin made by the Rohm & Haas company called Rhoplex HG-95P to make their gloss and semi-gloss SuperPaint. Rohm & Haas was bought out by Dow Chemical in 2009, and Dow now markets that product under the same name:

http://msdssearch.dow.com/PublishedL...romPage=GetDoc

The point here is that Dow will sell HG-95P to ANY paint manufacturer, just as other chemical companies will sell their pigments, coalescing solvents, rheology modifiers, defoamers, etc. to anyone wanting to make paint commercially, and if that manufacturer is competent enough to mix the chemicals in the recommended proportions, that manufacturer will make a paint just as good as SuperPaint.

And, the sales reps from every one of those chemical companies are continuously taking the managers at the paint manufacturing companies out to lunch to tell them about their latest and greatest offerings in the hopes they'll buy that resin, pigment or chemical. So, making the best paint in the world is not an engineering challenge; it's a management decision. Management has to decide whether or not the benefits provided by using a newer binder resin or pigment or chemical warrant the increased cost, and if so, they'll buy it to use in their paints. If not, they won't. It's as simple as that.

So, that's why it's often said that when it comes to paint, you get what you pay for. But, it's equally true that when it comes to paint, you often don't need everything you get. In my case, I own a small apartment block, and when I repaint apartments, I'm repainting them the same colour. So, does it make sense for me to pay extra for a paint with good hide? Not really.

So, instead of going according to whose name is on the can, you'd do well to just phone up the managers at any of the major painting contractors in your area and ask them what paints they've found work particularily well over bare stucco in your area. Most likely you'll find that there's no concensus of opinion as every manufacturer's top-of-the-line exterior latex works well, and the differences the paint company managers will spend most of their time talking about are if you're gonna use a sealer first, the weather conditions before, while and immediately after painting, the method of paint application (roller, spray, whatever), whether you're gonna put on a second coat or not and stuff like that.

All paint companies make the best paint they can put together for what they consider to be a reasonable price to pay for good paint. The difference is that they all have different amounts in mind when it comes to what good paint should cost. If you pay more for your paint, you generally get better paint, so the trick is to buy the most expensive paint from the place that sells it the cheapest. But, it's really whether you use a sealer to prevent the stucco from absorbing paint, that you're painting under proper weather conditions, and whether you put on only one coat or several that play the biggest roles in whether you run into any problems painting, and how long your paint job lasts.

I know that's not the simple one word answer you were looking for, but it's the correct answer to your question.

PS: This business about latex paints not being able to expand and contract with stucco, and the result being that the paint cracks and peels is a perfect example of why you can't believe everything you read on the internet. Wood is a natural material that expands and contracts with changes in it's moisture content usually caused by seasonal changes in temperature and humidity. The primary reason for oil based paints to come in both interior and exterior versions is that exterior versions will be made with more oil and less alkyd resin (called "long oil" paints) so they don't dry to as hard and brittle a film. That's done precisely so that the oil based paint retains enough elasticity to stretch and shrink with wood outdoors. Both interior and exterior latex paints have more than sufficient elasticity to stretch and shrink with wood outdoors, so the biggest difference between interior and exterior latex paints is the amount of additives (mildewcides and UV blockers, really) there is in each can. Wood can shrink by as much as 8 percent from "green" (recently cut) wood to oven dried, and that's vastly more dimensional change than you're ever going to see in stucco, especially due to thermal expansion and contraction. Exterior latex paints work fine on stucco; you don't need an elastomeric coating to paint stucco.