Epoxy Vendors - Shrinkage Crack Filling

[tlmartin84]

I would like VENDOR recommendations only. I have read dozens of threads, and there are dozens of products, methods, etc. I have even seen varying responses from the same vendors. Regardless It would just be nice to have one thread with solutions. I have also seen some state that even after prepping and filling there will still be a small crack form.

For normal shrinkage cracks, what do you recommend:

What width crack should you just top coat over?

At what width needs ground out?

What product do you recommend to fill with?

 

[Garage Flooring]

I would like VENDOR recommendations only. I have read dozens of threads, and there are dozens of products, methods, etc. I have even seen varying responses from the same vendors. Regardless It would just be nice to have one thread with solutions. I have also seen some state that even after prepping and filling there will still be a small crack form.

For normal shrinkage cracks, what do you recommend:

What width crack should you just top coat over?

At what width needs ground out?

What product do you recommend to fill with?

There is not a simple, works in every case answer. A lot of this really truly depends on the products being used.

Generally speaking I will coat over a hairline crack on an older floor.

If I can fit the tip of a knife in the crack but not a whole lot more, I will grind it out and fill it.

If I am using 100% epoxy in a complete system (primer, base coat and top coat) I will push it a little more than I might with say Rust Bullet or even a polyurea.

a GOOD 100% solids filler should NEVER shrink but it may 'slump'. Deep crack, you fill it in, looks level and during the cure sinks into the crack a little more. Multiple methods to deal with this.

Crack filler and joint filler are NOT the same. Make sure you are using the right product in the right areas.

 

[LegacyIndustrial]

Our install company, Legacy Garage Floors, uses Xtreme Set 100 on every job done in Orlando and we provide it to DIY, contractors, etc... You can fill a void, fill a crack, a spall. We use it with common dry play-sand from THD or Lowes. Dries in 30 min and grind it flush!

http://www.legacyindustrial.net/pro...atings/xtreme-set-100-crack-joint-filler.html