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Old 05-25-2007, 06:13 PM   #16
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What am I doing wrong on these blocks?!


I don't know where anywhere in the area is where I can find reputable advice. I've got soo many projects going at once here (first home, and intentionally a fixer-upper), that I've found sourcing out help at more 'professional' places is a waste. Maybe it's because I'm down in FL, but I'm born/raised in the northeast and just got here, maybe I project something wrong. Bottom line is I get crap help / rapport no matter where I seem to go here, not at all like up north. I'm sure it's just the new area.

Anyways, as far as this goes, I'm just gonna try it out on the wall with the bonding agent. I used the pressure washer to make the back of my house 3 separate 'zones':
1) old stucco still on, primer and everything (with spalling pieces chipped off)
2) pressure washed to primer only, no more stucco
3) pressure washed all the way to clean block.


I'm going to use the lanco liquid bonding agent and attempt to do a base coat on all 3 sections, to see how they hold after a few days (thanks whoever recommended that, I know it's common sense lol, but sometimes you have so much going on at once you can't think straight to save your life). If they hold good on all 3, i'm just gonna pressure wash off the spots where the old stucco is spalling/cracking, and just go over it all with the bonding agent, then stucco.


Oh, I should add that I did call lanco, and their rep (the 'chemist' the receptionist told me ) told me it'd hold just fine, and that I could bond stucco to nearly any sound substrate with their product.

As expensive as the stuff is, I'm considering using it as an admixture directly in my stucco as well (base coat only), but unsure, as my amerimix stucco supposedly already is 'fortified', so I don't want to cause problems.

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Old 05-25-2007, 07:28 PM   #17
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What am I doing wrong on these blocks?!


When you shop at a material supply house, as a rule, you will be expected to know what you WANT, as opposed to knowing only what you want to DO.

Do your research (like it appears you have), and then hit the supply houses. They will be able to help you a lot more if they are explaining dry times on Lanco Red Bond VS explaining what bonding agent is.

It sounds like you have it well in hand, anyway.
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Old 05-25-2007, 07:52 PM   #18
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What am I doing wrong on these blocks?!


Quote:
Originally Posted by Tscarborough View Post
When you shop at a material supply house, as a rule, you will be expected to know what you WANT, as opposed to knowing only what you want to DO.

Do your research (like it appears you have), and then hit the supply houses. They will be able to help you a lot more if they are explaining dry times on Lanco Red Bond VS explaining what bonding agent is.

It sounds like you have it well in hand, anyway.
Thanks, I hope I do anyways!

Yeah that's what I did, when we got the house under contract, I had about 100 pictures of every detail of the property. During the ~1month period before closing, I was online / library for all of my renovations. I've read 'how to stucco' instructions from a minimum of 10 sources (probably closer to 20). So it's not that I don't understand the application, it's just that when I hit a little snag, I have no idea what it is or how to get around it. Like, if the blocks were new and had nothing on them, I would've been all set. I figured I could just pressure blast them back to normal, but that didn't work. So then it's trouble shooting on something that I only know how to do in general terms. I know the basics for how to do a 3 step application over lathe, I know how to do a 2 step application over block, but when I hit a snag like this, I'm goddamned clueless haha.

I'll be testing those sections tomorrow (or the day after - may have gotten a little too much sun today!). I'll post pics as it progresses, I've noticed the pictures section of this site doesn't seem to get much love. I'm planning to change that! I'll be posting all my projects (for advice, tips, etc) while doing this renovation, but when done will be posting all the pics (probably before/after style). This house was bought at a great price, but is severely outdated. Luckily, it's layout, structure, location, etc are all great, but it just needs tons of TLC. I'm devoting myself (as is my brother) to the renovation, so it should be coming along pretty quickly. When done (hopefully within a month or two), I'll have done:
- full landscaping overhaul, new palms, new turf, etc
- refinished cement slabs (garage, out back, driveway, front stoop), mostly done with tan (some will be tan overlays, uniform color), while some will be tan stains (probably on overlays, unsure so far)
- vinyl siding removed, replaced with stucco
- bedrooms totally redone (this is already complete, they were tiled, repainted, etc)
- refinished garage
- lightly remodeled bathroom


Those are the 'major' projects, and a ton of other things (like replacing every piece of old school gold in the house, I've got a box out in the garage of stainless steel knobs, hinges, etc, and new electrical plates, etc). In the end, the place will look totally different.

I'm glad this forum is here, because this is my first attempt at this kind of thing, but it's something I want to learn and keep doing, and you guys are great for helping wiht problems encountered such as this one. When it's done, this place should be night/day compared to when we bought it.
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Old 05-26-2007, 07:14 PM   #19
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What am I doing wrong on these blocks?!


Began today, I did this wall (see pic). I did it because it had some spots all bare down to concrete, some spots that were just the old primer, and some spots that were primer + spray-on-stucco. I figured I'll wait a few days, check it out, and see if the thing held up nicely.

I applied the lanco, waited 2 hrs, then applied. I misted it several times since, and now have it tarped for the night to keep it from drying out.

Any ideas on how to tell if it is good? My guess is that none will fall off the wall. Surely if I try, I could get it all off, because I'm strong lol. How do I know if it's a satisfactory bond? wait a few days and give it a firm bang, maybe something like that? I guess that, since I've never been around this stuff, I don't know how it *should* feel after a few days, so I won't know if it's too strong or too weak of a bond.
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Old 05-26-2007, 07:15 PM   #20
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What am I doing wrong on these blocks?!


lol any of you guys who know what you're doing with stucco would've shat a brick watching me do the spots that weren't just flat expanses (things like inside the window, at the ceiling, joints, etc.). Just hilarious
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Old 05-26-2007, 08:17 PM   #21
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What am I doing wrong on these blocks?!


are you using premixed stucco or mixing your self?
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Old 05-27-2007, 09:26 AM   #22
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What am I doing wrong on these blocks?!


premixed. It's 'amerimix stucco', supposedly is fortified, but I've been adding ~1liter of lanco liquid bonding agent to the mud, in addition to coating the wall with the lanco first.

This morning, the wall was still there behind its tent. I misted it again, keeping it strong through the cure.


How long should I be keeping this moist? How long before final coat goes on (no brown coat here, this will be a 2 step application)? I've read everything between 48 hours, 78 hours if hot outside, up to 2 weeks.
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Old 05-29-2007, 05:09 PM   #23
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What am I doing wrong on these blocks?!


joeyboy
One of two things are going to happen.
Either this house will be bombproof or your stucco will fall off inside a year, both for the same reasons, LOL.
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Old 05-30-2007, 10:06 AM   #24
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What am I doing wrong on these blocks?!


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Old 05-31-2007, 06:43 PM   #25
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What am I doing wrong on these blocks?!


Quote:
Originally Posted by marksson View Post
joeyboy
One of two things are going to happen.
Either this house will be bombproof or your stucco will fall off inside a year, both for the same reasons, LOL.
could you please elaborate, I'm all for doing things the right way the first time. I want to learn to be good at what I'm doing, as I'm planning to do this forever (remodeling, not from a contracting perspective, more from owning properties that I just remodel myself). So far I've got a couple walls up, just base coats, and they seem rock solid. I'm kicking them, trying to pull them off, they seem like they're on there thick and strong.

If you see any flaws, please let me know before I continue along the wrong path. I'm basically just:

- applying lanco liquid bonding agent to the wall (that's been cleaned first)
- letting dry for at least 2 hours, as per instructions (although by then it doesn't even feel tacky any more, but I don't want to go against their instructions
- after 2 hours, I'm mixing up 2 bags of stucco in a wheel barrow, mixing very thoroughly, I'm almost positive i've got my slump where it needs to be, and am adding in some of the bonding agent to the mud as well
- applying this to 1 wall section at a time
- lightly misting the wall about 2 or 3 times daily
(oh, should've mentioned that the wall gets tarped pretty tightly right after application, I pull the tarp back to mist it daily. I do that for about 3 days after original application).


If you see somethign wrong with my approach, please let me know. I can post some pics of the sections I've done if it would help in the least
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Old 05-31-2007, 09:43 PM   #26
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What am I doing wrong on these blocks?!


Some bonding agents will re-emulsify once only. That means they dry out, then when when wetted become soft again. Some bonding agents will re-emulsify until the reaction is complete (several wet/dry cycles). Those are generally fine for most wall applications and flatwork, but are not suitable for water submersion.

FYI.
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Old 06-01-2007, 01:15 AM   #27
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What am I doing wrong on these blocks?!


Joeboy
I was kind of joking.
Although I would point out that you just need to follow the manufacturers instructions to the letter and not add your own thoughts/ideas/improvements to their instructions.
If you do, you may affect their product liability.
Quote:
letting dry for at least 2 hours, as per instructions (although by then it doesn't even feel tacky any more, but I don't want to go against their instructions
Quote:
at least 2hours
If it's not tacky then leave it a little longer.
Otherwise sounds like it is to the letter.

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