Sikaflex Self-Leveling Sealant

  • Advertise with us
Review by SirFatty posted 08-24-2013 12:24 PM 15343 views 4 times favorited 21 comments Add to Favorites Watch
Sikaflex Self-Leveling Sealant No-picture-s No-picture-s Click the pictures to enlarge them

Woodworking in the garage has many challenges, space and lack of airflow are two at the top of my list. Another is cleanup. There’s not too much that can be done about space, and I’m stuck with the airflow situation. But cleanup is something that I’m finally getting under control. For example, all the large power tools are mobile, as is the workbench and tool storage. That allows for the garage floor to be swept from one end to the other.

The floor is divided into four sections due the expansion joints, so although not the worst of problems, it is annoying when the debris gets into the cracks. So usually each section swept individually. Not a huge deal, been doing it for a very long time, but it is an annoyance.

One day at work, I noticed the maintenance department using Sikaflex self-leveling sealant on the expansion joints on the shop floor area of a new building we recently acquired. They used quite a lot, since it’s a 30k ft. space, but it installed easily enough and the cost is not unreasonable. I thought I would give it try.

Home Depot has the product in two sizes and two colors. A couple large tubes and one small tube of the grey was needed to complete the floor in this two car garage. The installation was simple, as previously mentioned, but there are a couple precautions. First, make sure the joints are completely cleaned out. A screwdriver and vacuum were used, the driver needed to dislodge dirt and old sawdust that was stuck deep down where the broom was not reaching. And although this product comes in a tube that looks like caulk, it’s not. It comes out much runnier, more like syrup, which is necessary for the self-leveling to work.

Fast-forward a few months: It does indeed make sweeping out the garage much easier and a bonus is that the mobile tools and workbench roll around easier too.

Here are a couple “after” shot, the cars tires and tools seem to have no effect at all. We’ll see what a winter of snow, water and salt do to it.

-- Visit my blog at

View SirFatty's profile


547 posts in 3100 days

21 comments so far

View Bob817's profile


679 posts in 3270 days

#1 posted 08-24-2013 12:39 PM

Looks good, Hope you have good luck with it!

-- ~ Bob ~ Newton, N.H.

View Bogeyguy's profile


548 posts in 2956 days

#2 posted 08-24-2013 02:54 PM

They have been around a long time and make a good product.

-- Art, Pittsburgh.

View bobasaurus's profile


3684 posts in 4072 days

#3 posted 08-24-2013 03:29 PM

Good idea. I have the same problem in my garage shop, so I might follow suit.

-- Allen, Colorado (Instagram @bobasaurus_woodworking)

View tomd's profile


2218 posts in 4658 days

#4 posted 08-25-2013 05:00 AM

Looks very good, I had never heard of this product, thanks for the heads up.

-- Tom D

View knothead's profile


163 posts in 4836 days

#5 posted 08-26-2013 06:12 PM

This IS good stuff! Back in 2007 I finally got to the point that I had to make a decision – Was I going to have a shop in the garage? or was I going to have cars in the garage? Cars are built to sit in the weather and tablesaws are not so the Car and the Pickup lost. I painted the floor with Epoxy paint and sealed the cracks or grooves with this stuff and after 6 years it is still just as flexible and nice as the day i laid it in there. It has performed well and I would not hesitate to use it again. I do occasionally muscle things out of the way and bring the car in for maintenance if the job is large enough and calls for indoor work but even then it has stood up well to the chemicals and abuse car maintenance can inflict.

More than one person has asked my why I park my vehicles outside when I have such a nice garage. I just smile and leave them guessing.

-- So Much Wood - So Little Time! --

View cutworm's profile


1075 posts in 3681 days

#6 posted 08-27-2013 01:45 AM

We use a lot of Sika products where I work. Good stuff.

-- Steve - "Never Give Up"

View johnstoneb's profile


3159 posts in 3061 days

#7 posted 09-01-2013 11:49 PM

Thanks for the review. My shop now has the expansion joints filled with this stuff. It looks great and no more sawdust and shavings in the expansion joints.

-- Bruce, Boise, ID

View SirFatty's profile


547 posts in 3100 days

#8 posted 09-02-2013 01:22 AM

Nice! And it was pretty easy to install too, right? Just had to get used to how runny it is.

-- Visit my blog at

View Andygulfcoast's profile


30 posts in 2725 days

#9 posted 09-04-2013 02:05 AM

Reading this review tells me how I’ll fix this issue in my garage. Thanks!

-- Hobbyist woodworker. My garage shop now shares space with my kids toys, and most of my equipment is stored on shelves.

View mbs's profile


1685 posts in 3828 days

#10 posted 09-07-2013 03:40 AM

I’ve been looking for something that would make it easier to move my tools across the expansion joints. Thanks for sharing.

-- Sorry the reply is so long. I didn't have time to write a short reply.

View mbs's profile


1685 posts in 3828 days

#11 posted 09-14-2013 05:23 PM

I’m glad you wrote the review. I’ve been looking for something to fill the gaps in my concrete. After reading your review I read several other reviews on across the internet. Since my floor has a slope to it I chose to use quickcrete brand since it isn’t supposed to be as runny. I put it down yesterday and worked pretty well except the foam backer rod lifted in some areas. Did you have this problem?

-- Sorry the reply is so long. I didn't have time to write a short reply.

View SirFatty's profile


547 posts in 3100 days

#12 posted 09-14-2013 10:49 PM

Hi mbs,

There is no foam backer, just squeeze the stuff into the crack. How much of a slope?

-- Visit my blog at

View mbs's profile


1685 posts in 3828 days

#13 posted 09-14-2013 11:37 PM

Not sure of the slope. Other reviews I read said if there was any slope the stuff would run.

The foam backer is supposed to be used such that the pour depth is no more than 1/4”. Mine was 3/4 deep so I put the round foam rod in and it worked in most places but surfaced in others. And the foam is much cheaper than the sealant. I ended up cutting the foam that was higher than the surface and pouring more sealant. After I finished I left the house and wont know what it looks like until Monday.

-- Sorry the reply is so long. I didn't have time to write a short reply.

View woodbutcherbynight's profile


6339 posts in 3297 days

#14 posted 09-18-2013 02:49 AM

Good post, never had an issue to deal with like this but I do have a few friends that have asked about what to do so I will pass this on.

As for your comment about cleaning up the shop….. (laughing) I am not sure but I think you could lose your Woodworkers License over such a statement.. I leave mine as is so when someone makes the comment that it is messy I can hand them a broom and tell them get to work. Suddenly they have somewhere else to be, or the shop looks, “GREAT”. (Laughing)

-- Live to tell the stories, they sound better that way.

View SirFatty's profile


547 posts in 3100 days

#15 posted 09-18-2013 02:51 PM

@woodbutcherbynight: Since my shop is an attached garage that is used to enter the house (into the kitchen), having sawdust tracked in the house does not go over too well. So, it’s a necessity.. plus I would rather have a clean shop.

-- Visit my blog at

showing 1 through 15 of 21 comments

Have your say...

You must be signed in to post the comments.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics