2

Should I fill cracks before using floor maintainer to avoid sanding twice, and will the etch negatively impact the crack filler material?

Asked by ستایش کوتی
2 months ago
Last Updated: July 26, 2024

Hey, so I’m getting ready to tackle the garage floor epoxy project this weekend. I’ve done my homework and have a solid plan in place. Here’s what I’m thinking:

1. Sand/grind with a floor maintainer from HD
2. Clean and degrease
3. Etch
4. Wait a full 24 hours
5. Fill in any cracks
6. Let it cure for 8 hours
7. Lightly sand over the repaired cracks with an angle grinder
8. Paint
9. Let it dry for another 24 hours
10. Apply a clear coat within 12 hours

I saw a tip in the comments of one YouTube video that suggested filling the cracks before using the floor maintainer to avoid sanding twice. But I’m wondering if the etching process could affect the crack filler material negatively?

Just a heads up, I’m not here to debate whether this should be a DIY project or if a pro should handle it.

Update: I’m thinking of swapping steps 1 and 2, so it would be: clean/degrease, etch, fill cracks, and so on. What do you think?

Subscribe
Notify of

21 Comments
Oldest
Newest Most Voted
Inline Feedbacks
View all comments
Alvin Fields

Hey there! In response to your question about the order of filling cracks and etching, it does make sense to fill the cracks first, followed by sanding with a floor maintainer like the one mentioned in the YouTube comment. This approach can make the process more efficient by reducing the need for sanding twice.

Alvin Fields

Let me look into this inquiry. 🙋‍♀️

Alvin Fields

Here are some suggestions for preparing and applying epoxy to your garage floor, specifically regarding the impact of etching on crack filler:

Alvin Fields

I’ll take a look at it soon, anonymous participant.

Alvin Fields

Hey there! I did some digging and here’s what I found. Let me know your thoughts!

It’s a good idea to fill cracks before etching to make sure the filling material sticks well. After you clean and degrease the surface, it will be all set for effective crack filling.

When you etch after filling the cracks, it ensures that both the original concrete and the newly filled areas are properly prepped for better adhesion of future layers.

Once the filling and etching are done, you can use a floor maintainer for sanding/grinding to smooth out any unevenness in one shot. This means you won’t have to sand twice.

This approach should save you time and effort, making your project more efficient.

Alvin Fields

Are you just working on renovating your garage?

Alvin Fields

Hey there! If you ever decide to renovate your bathroom with tile or update your kitchen floors in the future, feel free to reach out to me at support@1bidpro.com. I can help you get a sense of what to expect before bringing in contractors for bids. This can also protect you from being overcharged. I have a feeling your garage remodel will turn out great soon. 🙏

Inés Valverde

Keep an eye out for any low spots on your concrete that the grinder/sander might miss because the surrounding area is higher. Use your angle grinder to take care of those areas.

Esperanza Ortiz

Start by filling the cracks, then make sure to sand them clean before etching. And once you’ve etched, clean, clean, clean, clean. When I did my own project, I found a deck brush to be really helpful for cleaning. Cleaning and getting rid of dust and debris is absolutely crucial.

Esperanza Ortiz

My experience was similar, I also didn’t fill cracks before etching. The purpose of etching is to create tiny holes for the epoxy to adhere to. So, I believe that if you fill the cracks after etching, the epoxy might not have a good surface to bond to. It’s crucial to clean the area thoroughly to remove any residue from the concrete, so those small pockets created by etching are clear for bonding. I pressure washed, deck brushed, and squeegeed the area multiple times after etching, then allowed it to dry for several days before applying the epoxy.

Maria Foster

Just a quick tip: I’ve worked at both Sherwin Williams and Benjamin Moore, and regardless of the product you’re using, we always recommend putting mats under your tires. These DIY epoxies just can’t withstand hot tire pick up.

Maria Foster

Hey there, you’re so welcome! The end product turned out really nice, wishing you the best of luck!

21
0
Would love your thoughts, please comment.x
()
x