
Ratings & Reviews for Sika Mix-In-The-Bag Expanding Polyurethane Post-Setting Foam Fast Setting 33 -fl oz Repair accessory
Ratings may include incentivized customer reviews.
What Customers Are Saying
The product is easy and quick to use, with a fast set time, and is lightweight and mess-free compared to traditional concrete. However, it may not be as structurally strong, especially for applications requiring high stability or weight-bearing. The product works best for simple, standalone uses like mailbox posts or light-duty fencing, but users need to carefully follow the instructions to avoid issues. Overall, it can be a good option for certain light-duty post installation projects, but concrete may still be the better choice for critical structural applications.
Customer review summary generated by AI, including incentivized reviews.Product does not work
Would Not RecommendPut it around 4 x4 post. did not secure post. They were moving side to side after the product cured. A complete waste of money and time. Do not buy this product or you will be sorry.
Product didnt work...
Product didnt work... have used before and this time didnt mix, heat or foam. Had to switch to sakrete.
Verified Purchaser
Great alternative to concrete.
Would RecommendHave used this for fencing and mailbox posts. It is quick hardening, easy to mix, and holds the posts securely.
Verified Purchaser
wear safety gear
easy to use
Verified Purchaser
Great Stuff!!
Would RecommendFirst time user. Thought i would try instead of mixing up a small batch of cement for 4x4 8' post in late fall. Filled 2' hole over top, hardened in 30 minutes where you could not move post. Trimmed off excess following day. Waiting to see next spring how well it holds up over the winter. Use care as it is very sticky at first. Amazing stuff.
Verified Purchaser
Disappointed.
Would Not RecommendThe procedure to break the seal to mix the product does not go as they claim. It was a struggle to break and the bag popped. Lost most of the product. What I was able to fill the hole with went as advertised. If you buy make sure you have the bag towards the hole your trying to fill just in case what happen to me.
Verified Purchaser
Did Not Work as Intended – Failed to Set Po
Would Not RecommendI purchased the Mix-In-The-Bag Expanding Polyurethane Post-Setting Foam with the intention of securely setting a 4x6 wooden post. Unfortunately, the product did not perform as advertised and completely failed the task. I followed the instructions precisely, mixed the components thoroughly within the bag, and poured the mixture into the post hole as directed. The foam expanded somewhat, but once cured, it was clear the application failed. There was a significant, inconsistent gap between the hard...
Verified Purchaser
Foam cuts easily
Would Not RecommendI'm not sure how long it will hold. Three times as expensive as concrete.
Verified Purchaser
Received as described - Thanks!!
Would RecommendReceived as described - Thanks!!
Verified Purchaser
Had to use 3 bags. Know how much you need.
Would RecommendYou got to be quick once you squeeze the one side into the other. It works great, put in fence post.
Verified Purchaser
Beats mixing concrete especially for small jobs.
Would RecommendEasy and clean
Verified Purchaser
Science at its finest
Would RecommendWasn’t sure if the hype was real. I was skeptical this bag could replace to bags of Crete. Sure enough, it works like a champ! I set 2 fence post and it handled the 6x8 fence panel with no problem.
Verified Purchaser
Easy to use, does not require water.
For a lighter project, like installing a roadside mailbox post, it is easy to carry around than a bag of quick setting cement and does not require water. It has a one year shelf life, resists water and handles hot/cold temperature extremes.
Verified Purchaser
Really great product!
Would RecommendVery simple to use and very fast!
Verified Purchaser
Not as great as it sounded
Would Not RecommendInitially this seemed like a good product, but the instructions indicated 3 bags would be needed for my mailbox post. With that said, the price is a concern. I went with a cheap bag of Quickcrete that should do the job.
Verified Purchaser