Filling holes before Epoxy

[jaggudada]

I have garage floor with holes about 1/4" as shown in the attached picture.
What product I should use to fill these up? How long I have to wait to cure this patch before applying epoxy coat?

Also Can I just go straight epoxy instead of filling the holes first? Not sure if they make a solid, robust industrial quality epoxy which will fill up these pitted areas.

 

[AlphaGarage]

If they're small enough you can just "flood" them with a good epoxy. You'll want to use a 100% solids epoxy, if you use an epoxy with extenders, like water or solvents, it will "shrink" as the fillers evaporate, and you'll need to fill it again, and again...

If the voids are larger you'll want to use an appropriate filler, although quality epoxies can go on up to 250 mils (1/4") at some point a dedicated filler product will be less expensive than using an epoxy coating.

If the epoxy or filler is 100% solids there's no need to wait, you can over coat right away.

As always check with your supplier to confirm product application details.


Quick suggestion - With photos in these types of posts it's helpful to place a quarter in the photo so that it's easier to get a sense of scale.

 

[LegacyIndustrial]

Get a good thick epoxy (high build, 100% solids) and flat blade the material with a rubber squeegee. You should get pretty good results.
Like Alpha said, if the voids are over 1/4" you may need to make a slurry using a silica sand, same process, pull it across the voids.

 

[rugerlady]

Can't add anything to what has been stated above.

 

[jaggudada]

Get a good thick epoxy (high build, 100% solids) and flat blade the material with a rubber squeegee. You should get pretty good results.
Like Alpha said, if the voids are over 1/4" you may need to make a slurry using a silica sand, same process, pull it across the voids.

Did you mean, mix silica sand with epoxy and make a slurry? Just want to make sure.

Also the thick epoxy is going to bubble off. right?

 

[AlphaGarage]

Did you mean, mix silica sand with epoxy and make a slurry? Just want to make sure.

Yup - mix epoxy per instruction and add clean, fine sand, maybe 5 parts sand to one part mixed epoxy, plus or minus.

Also the thick epoxy is going to bubble off. right?

Not sure what you mean by that.