1 Gal. Concrete Alternative-High Density Polyurethane Post Setting Foam White 5 Post Kit
- Volume equal to 5- 80 pound bags of concrete
- Rapid cure time, taking only 1 hour to firmly set
- Allows for post protection, preventing rot and rust
- See More Details
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Product Overview
This new state of the art product is just perfect for replacing bags of concrete for setting post, satellite dishes, mail boxes, low level decks, street signs, bird houses etc. No water needed and no messy cleanup. Prevents rot and rust on your post below ground line.
- Kit contains product for five 4 in. x 4 in. post in 8 in. wide x 24 in. deep hole
- No water needed
- Easy and clean to use
- Fast cure time
- Reduces time and labor cost
- No heavy lifting
Info & Guides
Product Overview
- Volume equal to 5- 80 pound bags of concrete
- Rapid cure time, taking only 1 hour to firmly set
- Allows for post protection, preventing rot and rust
Key Features
Specifications
Dimensions
Container Size
1 Gal.
Product Depth (in.)
10
Product Height (in.)
12
Product Length (in.)
12
Details
Returnable
90-Day
Use Location
Floor
Warranty / Certifications
Manufacturer Warranty
Free of Manufacturers Defects
Questions & Answers
120Questions12Answers
Is it a 2 pound density or 4 pound density
Asked by Grincj February 23, 20210
AnswersCould this product be used to fill a 1.5 - 2.0 inch gap or void between concrete steps and the ex...
Asked by RayT February 21, 20211
AnswerIt could but it's not a good solution. The way it expands is not very controllable. You could cut off excess easily with a sharp blade after it hardens. But a better thing to us is one of those foam in a can products that doesn't expand a lot ( there are several varieties). And since the wood is pressure treated, if there;s some lingering moisture at the gap because the wood will be connected to the ground after you add foam, it still is unlikely to rot. You could also shove those foam noodles (3/8 inch or so dia) into place. Put some caulk behind it to make it stick)
What lb density foam is this?
Asked by Will February 6, 20211
AnswerNot sure..... but it worked great for 4x4 wooden posts I used for my privacy fence. It has a consistency similar to the foam in a can. I guess it’s a mid ground between just sinking posts in the ground and pouring concrete around them. I had a good experience with the product and would recommend it.
Is this closed cell foam
Asked by eric February 6, 20210
AnswersCan this be used as a structural replacement for wood if placed in a mould?
Asked by Will August 8, 20202
Answersno - no way to control its expansion.
I have a void under my driveway but no sagging yet. Can i use this product to fill the void?
Asked by Kim July 12, 20201
AnswerIt will work great since it expands to form the void beautifully.
The instructions say the hole must be dry. When I dig my post holes, the soil is usually moist. ...
Asked by bh June 21, 20203
AnswersYou’d be fine. I did mine shortly after a hurricane and the soil was wet. Had no problems
If you don't mix enough for a hole, can you mix and add more right away, will it adhere to itself?
Asked by JMCBC1963 June 18, 20202
AnswersYes, actually you dont want to overmix. Once you mix it you have to use it and you only have a about 15 seconds or so to pour out.
whats th name of the tubes thast u use when installing fences post
Asked by whisper June 10, 20201
AnswerI think you’re referring to concrete form tubes. I don’t use them for fence posts and I don’t think you do either. By using the bare post you fill the entire space between the post and earth with concrete or foam. By using a tube you have to fill the space between the tube an earth with rocks or packed dirt. Not nearly as stable.
I need to fill some gaps under a concrete slab. Will lift the slab to fill. Does this stuff work well to sustain the slab weight
Asked by Steve May 22, 20201
Answeryou can't eaasily control where it will foam up so I would use it under a paving slab
Customer Reviews
Jan 29, 2021
Using the first time you will wonder how much is...
Using the first time you will wonder how much is needed in the hole. The claims they make are for perfect 8 inch holes. If you go 3 feet deep by hand with a post hole digger you will have 10 and sometimes more. So I advise 40 or 45 ounces per hole for a 20 to 24 inch deep collar in a 10 inch hole at 65 70 degrees F. I used about 33 and it worked for an 18 inch collar, Brace the posts well and bury the bottom of the post with sand or dirt. but i was lucky I had enough. With more material its easier to pour it evenly around the post. Sig your holes accurately so the post is in the middle. All in all it was fun and I knocked 70 feet of 6 foot fence out with ease. I used to use concrete and not even have to brace with this you have to brace so it cost a little more but you will have more energy for framing and fill. Throwing some sand in the hole after the foam hardened seemed to fill the 1/16 inch gap left between foam and dirt and I washed it in with water. Or saves some product and do each hole in two pours might fill that small gap.
by HomeDepotCustomer
Mar 31, 2020
The product seems to have worked well. Was easy to handle and mix with the provided mixer attachm...
The product seems to have worked well. Was easy to handle and mix with the provided mixer attachment. Poured in the hole well and set quickly. I say "seems to" because the posts have only been up for a week or so, so it remains to be seen how long it will hold strong.
My only complaint is that the mix turned up a little light. Was supposed to do 15 posts, only ended up doing 13 and 1/2. It was difficult to pour the thick solutions so perhaps I poured more than recommended each time. But since it's clear that it's difficult to pour the liquids and likely difficult to measure, a little extra could be provided as a cushion. The solutions came in four bottle, two for Part A and two for Part B, with each of the second bottles being only half full, so there was room for extra.
by Sa
Oct 6, 2019
This stuff worked great. I’m older so packing bags of concrete isn’t in my future so l tried this...
This stuff worked great. I’m older so packing bags of concrete isn’t in my future so l tried this product. I didn’t even make enough mix for my first pole and it’s still solid as a rock. Great stuff!
by Gar
Jul 26, 2018
OMG I will never buy concrete to set a post again! Only received one stirring thingy but no matte...
OMG I will never buy concrete to set a post again! Only received one stirring thingy but no matter, used stuff I had on hand. Had 5 posts to set, all different sized holes....we dont have to worry about a frost line on the Oregon coast so my holes were shallower than their mixing directions filled. First hole recommended 16 oz of each part for an 8 inch diameter hole 24 inches deep. As I said, my holes were shallower...probably closer to 14-16 inches deep. But the joy of this stuff is you can customize how much you want to mix. next two holes I mixed 8 oz of each and that was perfect. The last two holes I had worried about as they were basically just big broad holes that I had to throw some fill rocks into. Given how this works tho, the holes filled in no time and anchored the posts in perfectly. Mixing only takes about 15 seconds and you have nother minute or two to pour the mixture in the hole before it starts to foam and bubble. Expansion is done in less than 30 minutes. Yes, this is pretty much like filling the hole with "Great Stuff" or the other foam-in insulation only its denser. I just love it and will ALWAYS have some around. I bought this bigger quantity and only used about half of it for setting 5 posts (two really big holes remember) and will have enough left for the other posts when the time comes to set them. Highly recommended....keep a jug in the garage! Cant say enough good about it!
by KandiAndi
May 15, 2018
The product was lightweight and easy to use. It did not expand as much as I thought it would, may...
The product was lightweight and easy to use. It did not expand as much as I thought it would, maybe the holes were too big. I used twice the amount it said but end of the day I set a dozen fence posts in way less time than if I used concrete. I was hard enough to build the fence and support the weight in about an hour
by 1Dupont
Nov 10, 2017
I used this product when installing a satellite post in the ground that is 6 Ft in height . Then ...
I used this product when installing a satellite post in the ground that is 6 Ft in height . Then I BURY 3 ft in the ground with a 4″ diameter hole. Then pour 4oz of each product mix together. Then it start foaming within 3 to 5 min. And extra foam around the post just tear around it And cover it up with dirt. Its
strong has 2 -3 bag of concrete. I prefer this product over concrete. To avoid , heaviness, messy truck,. I will recommend this product.
by Manny
Jun 30, 2017
The YouTube videos on line and the actual product are spot on. I will never use Cement for post a...
The YouTube videos on line and the actual product are spot on. I will never use Cement for post again. This product is amazing and you need to carry it in your store ASAP! It makes life real easy, I'd say you would change a lot of minds if you demonstrated this product at all of your LOWES stores. 30 Min and it was completely set and I hung my Fence.
by Mac
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