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Control cuts

aalleexx

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East Texas
Really like this site! Seeing the good works of others is inspiring. Hoping to be able to post some picks as nice one day. My 1200 sqf concrete shop floor is about a month old. Thinking about AmorClad kit to cover it. Like the idea of using two military grade topcoats for protedtion. When would it be best to caulk the control cuts joints to minimze problems? Really like the tan colored floors others have posted pictures of. Hoping for similar results. Any suggestions greatly appreciated.
 
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thammel

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Oct 3, 2005
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Maryland
I was told by Armorpoxy to leave the control cuts alone and not fill or caulk them. The reason is that the caulk being flexible and the likelihood of small movement at the control cuts means that the epoxy covering the caulk would almost certainly crack. I left my cuts unfilled and it still looks great.

Tom
 
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aalleexx

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Apr 22, 2008
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East Texas
Thanks for the reply Tom. That's good to know. That's a mistake I would have made. Have you been happy with your Amorproxy floor and did you do the top coats? How many?
Sorry for all the questions, but trying to get it right the first go-round.
 

Kaizen

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I filled mine and then epoxy. I guess if it cracks on that joint it would strain the epoxy but don't think it will tear. Epoxy is expensive. Caulk is not


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LegacyIndustrial

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Jun 7, 2010
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deerfield, IL
Really like this site! Seeing the good works of others is inspiring. Hoping to be able to post some picks as nice one day. My 1200 sqf concrete shop floor is about a month old. Thinking about AmorClad kit to cover it. Like the idea of using two military grade topcoats for protedtion. When would it be best to caulk the control cuts joints to minimze problems? Really like the tan colored floors others have posted pictures of. Hoping for similar results. Any suggestions greatly appreciated.

Never want to use "caulk". Caulk is flexible and weak.
If you want a seamless floor, use a polyurea like our Xtreme-Set 100 to fill cuts and joints. It was designed to live under epoxy/urethane systems with no shrinking. It bonds and is flexible. Still hard enough for wheeled traffic to move over it without issue.

http://www.legacyindustrial.net/xtreme-set-100-video.html
 

Kaizen

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Should have said "sealant". I used silka flex off the shelf at hd. Flowed nice when warm


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thammel

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Aalleeexx - I'm very happy with the armorpoxy. I went with their ultra kit and an upgrade to the military/commercial topcoat. I'm extremely happy I did that. So I put down their 2 part primer (light gray - armorpoxy II), their ultra topcoat (2 part of course) and the 2 part clear top coat. A couple of things I could have done better: 1) put down all the primer....I was worried I'd run out so it was a little thin in some places but still covered totally in gray. 2)done a more uniform job of throwing chips....still looks great but not perfect. 3) perhaps gotten more clear coat so I could have put down another layer!! Really not necessary, but it's so nice that I think a first layer to cover the chips and then a 4th day of the final layer with the anti-skid material. The anti skid is amazing - I expected grit but it's a fine white powder, but it works very well and is not the least bit abrasive to the feel - a concern if you lie or sit on the floor ever doing work.

In summary, a great product. I'd use it again without question.

Tom
 
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Kaizen

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Same idea. I would use Sika if not topcoating over. It’s too flexible to be under the coating.


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Can you add some info? you're saying the slab will crack and the sealant will stretch ripping the epoxy? having trouble seeing how its going to flex enough to rip my epoxy. maybe because I only have a sawblade size kerf I can't see it happening
 

LegacyIndustrial

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No sir. Nothing can stop 4 or 6” of concrete from doing what it wants.

If you anticipate movement, fill post coating with a flexible product like Sika.

If you want a seamless floor fill with a product that is flexible but hard enough to resist wheel traffic like our Xtreme Set 100, beneath the coating.



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Last edited:

PurdueSD

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Mar 25, 2006
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Indiana
No sir. Nothing can stop 4 or 6” of concrete from doing what it wants.

If you anticipate movement, fill post coating with a flexible product like Sika.

If you want a seamless floor fill with a product that is flexible but hard enough to resist wheel traffic like our Xtreme Set 100, beneath the coating.



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Sika flex ok with HD40? before or after?
 

Armorpoxy

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Aug 18, 2013
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NJ
Thank you Tom for the great review of the Armorultra product!
The Ultrawear non skid additive is designed to give the floor added durability and great non skid protection while still being easily cleanable.
 

mopar440_6

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Sep 20, 2015
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Carlisle, PA
I coated the floor then filled the sawcuts with 1/4" foam backer rod and gray SikaFlex to match. Looks good, but I used a bit too much and it flowed out onto the floor at the edges.
 

Kaizen

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I coated the floor then filled the sawcuts with 1/4" foam backer rod and gray SikaFlex to match. Looks good, but I used a bit too much and it flowed out onto the floor at the edges.



Suppose you have to use tape on the edges. This stuff gets everywhere. My floor is blue. I will take my chances rather then have grey or other color lines throughout


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