Seam between floor and wall- Epoxy prep

[theapexdifference]

So I've grinded my floors and cleaned them. Looking to do the rest of the prep. I've attached a photo of where the floor meets the wall. There's this pretty nasty seam.

Considering I'm going to epoxy what should I do about a seam like this? Are there specific products I should use to seal it?

Also where the grinder didn't make great contact near the wall, is that a guaranteed failure point unless I angle grind completely to the wall?

Thanks

edit, not sure if the image is properly attaching, here's a link https://ibb.co/CHx6q9c

 

[Shea]

You need to grind the area near the wall as well. You can pick up a 4" angle grinder from Harbor Freight for $15 and a 4" turbo cup wheel from Amazon for about $11. Wear a respirator because the concrete dust will be heavy unless you have a vac attachment.

After you finish your floor coating, you can fill that seam (expansion joint) with a self-leveling polyurethane such as SikaFlex SL.

 

[LegacyIndustrial]

We have filled these in the past with Dap Concrete Repair Sealant, prior to coating.
It won't see traffic, so it's ok for this purpose.

https://www.amazon.com/dp/B002GD51KI/?tag=atomicindus08-20

 

[theapexdifference]

You need to grind the area near the wall as well. You can pick up a 4" angle grinder from Harbor Freight for $15 and a 4" turbo cup wheel from Amazon for about $11. Wear a respirator because the concrete dust will be heavy unless you have a vac attachment.

After you finish your floor coating, you can fill that seam (expansion joint) with a self-leveling polyurethane such as SikaFlex SL.

So you recommend not filling the joint and epoxying over the joint? Just epoxy up to it and fill it later?

Thanks

 

[theapexdifference]

We have filled these in the past with Dap Concrete Repair Sealant, prior to coating.
It won't see traffic, so it's ok for this purpose.

https://www.amazon.com/dp/B002GD51KI/?tag=atomicindus08-20

So you epoxy over the sealant? Do you grind it down prior to coating of leave it as is?

 

[Shea]

So you recommend not filling the joint and epoxying over the joint? Just epoxy up to it and fill it later?

Thanks

Epoxy up to it and fill later. The problem is that the joint can expand and contract with large temperature changes. Epoxy does not flex. If you epoxy over the joint, then you run the risk of the epoxy cracking somewhere along the joint later.

 

[LegacyIndustrial]

So you epoxy over the sealant? Do you grind it down prior to coating of leave it as is?

Dig out the filler so you get a flush-fill.
Again this is only for the perimeter void. Never try this where there is traffic.

 

[FJ4FUN]

As has been already stated, grind all the way to the edge, coat to the edge, fill void with flexible joint filler after coating has cured, grab some pizza and enjoy!