Model # 483503

Internet #205671519

Store SKU #1001358552

Sika 33 fl. oz. Fence Post Mix
0815202002611

Sika

33 fl. oz. Fence Post Mix

  • Sets in just 3 minutes with no tools required
  • Effectively replaces two 50 lb. bags of concrete mix
  • Can be used with wood, steel and PVC posts
Was  $10.97
$9.88 /each

Save $1.09 (10%)

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Product Overview

Sika Fence Post Mix is a two component, pre-proportioned polyurethane resin. It is mixed in the bag to produce expanding foam for supporting and backfilling fence, mail box, gate and signage posts. Suitable for all types of posts including wood, steel and PVC.

  • Lightweight pouch replaces two 50 lb. bags of post mix
  • Fast setting
  • High strength
  • No water or special tools needed
  • Simple and fast application
  • VOC compliant in all 50 states

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Customer Questions & Answers

We are using this to stabilize a wooden mailbox post that we've already painted. I had seen a rec...

We are using this to stabilize a wooden mailbox post that we've already painted. I had seen a recommendation to actually pour the liquid directly on the post while filling the hole to help seal it from the elements, but I'm worried about messing up the look of the post above ground. If, by any chance, the liquid gets on the part of the post that is above ground, is it possible to sand and cover up the residue with more paint after it is hardened?
Asked by: KB
Thanks for the replies. Based on your responses and what I've seen in various YouTube tutorials, I think we'll mask the portion of the post that would appear above ground with butcher paper when we pour. We plan on plumbing and stabilizing the post prior to pouring, and then we can lightly cover the top of the post with butcher paper and painter's tape before mixing and pouring the Post Fix. Thanks!
Answered by: KB
Date published: 2017-04-07

This was suggested on a boating forum to be used for a "different" type of application. I have a ...

This was suggested on a boating forum to be used for a "different" type of application. I have a boat well cover that is fiberglass (rough on the bottom) that needs insulation. Could I use this to insulate it, taking the cover off and laying it bottom side up, then pouring the mixed product on it? I only need a couple of inches of insulation over about 6 square feet area.
Asked by: TomN
I would think that perhaps the insulating foam in the aerosol can may be better. More control and less reliance on gravity or overflow. Just be sure to mask off any areas you don't want to have foam sticking to. And work a little at a time. It really expands a lot and if you judge depth & size for where the foam is at that moment, you will end up with way too much. Even so, once cured, you can cut & trim any excess.
Answered by: Bob
Date published: 2017-03-14

I am installing 4" X 4" X 4' posts for a Girl Scout project. There will be a small sign on each p...

I am installing 4" X 4" X 4' posts for a Girl Scout project. There will be a small sign on each post so the posts are not "load bearing." My holes will be 18" deep and as small around as I can make them with a shovel. Can I use one pouch for two posts?
Asked by: John
Yes..those posts, bearing small signs, won't go anywhere
Answered by: PotomacMD
Date published: 2016-12-24

If you are setting a fence post is it still recommended to place gravel at the bottom of the hole first?

Asked by: Kip
I used the Post Mix to set 13 steel fence posts. I did not use any gravel at the bottom. I do not see how it would help or hurt the final results.
Answered by: v308
Date published: 2017-02-10
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Customer Reviews

33 fl. oz. Fence Post Mix is rated 3.4 out of 5 by 43.
Rated 2 out of 5 by from BEWARE - You need to brace both bottom and top of post when you use this product as it will push ... BEWARE - You need to brace both bottom and top of post when you use this product as it will push the bottom of the post out of plumb as it expands. It is easy to use, BUT, you must be careful to somehow afix the bottom of the post in place, not just set braces at the top. When this stuff expands, it is very powerful. So powerful that it will move the post around in the hole. As long as you take precautions to deal with that, it should be great.
Date published: 2016-11-18
Rated 5 out of 5 by from I like this stuff a lot. After back and neck surgery lifting 60# bags of concrete mix is not a good idea. After a tornado here destroyed most of my fence I am going back in with this. I have noticed over the years that concrete gets wet and holds water around the post. PT wood is just not what it used to be. This keeps moisture away from the wood and keeps the post solidly in place. It cost more, but, the long term benefits are well worth it.
Date published: 2017-02-02
Rated 5 out of 5 by from After hearing about this product with rave reviews from friends I set 11 post by myself, and doin... After hearing about this product with rave reviews from friends I set 11 post by myself, and doing another 9 currently with this product. I can not believe how great this product is and those that made bad reviews must have walked away from post before it was set. 3 minutes and mine were fine despite being on an incline. Building privacy fence 170 feet long. I figured all the time hauling etc. with the 60 lb. bags of concrete would have taken as long, so patience's pays off. I never had an holes or areas of concern as other reviews. Suspicious of a lot of bad reviewers didn't read directions, or roll bag for the 20 seconds completely. Fast setting concrete 2 bags were actually a little more in cost. My husband was shocked I had set 11 post in by the time he came home in an afternoon less than 2 hours. Post are extremely firm with no movement and we have had really bad storms in the past week.
Date published: 2017-03-16
Rated 5 out of 5 by from Easy to use, great alternative to heavy concrete. Bought it after seeing a demo in Home Depot. Worked very well. Seemed to bond tighter to the post the more still I kept them. Also the Home Depot associate recommended to pour it directly on the post above ground level which will help keep water from getting in between it and the post. Very cool product!
Date published: 2017-02-22
Rated 5 out of 5 by from This product is amazing. I didn't know if existed until we had to install a new mailbox. We were ... This product is amazing. I didn't know if existed until we had to install a new mailbox. We were planning to use concrete but when I ordered the mailbox online the Home Depot web site recommended this product. It is so easy to use and so far the mailbox post is very sturdy as if we did use concrete.
Date published: 2017-03-12
Rated 5 out of 5 by from It seems to me, from all the "complaints" about this product, that there are a LOT of people out ... It seems to me, from all the "complaints" about this product, that there are a LOT of people out there that simply do NOT READ THE INSTRUCTIONS!!! OR are trying to use this product for something it is NOT intended for. One person disses this product without even trying it!! Just says concrete it better! I used this product for planter posts, AFTER bracing and making sure to pour the mix ALL the way around the post, there was no shifting. My wife thinks I am a genius, and boy is THAT worth the extra cost!!
Date published: 2017-04-10
Rated 1 out of 5 by from IMO: save your $ & get QuikRete! Sure, QuikRete does require some heavy lifting but for the money... IMO: save your $ & get QuikRete! Sure, QuikRete does require some heavy lifting but for the money I can get almost 3 bags of QuikRete for 1 bag of this sorry Sika stuff! Overall, I am not impressed with the performance or the price of Sika's Fence Post Mix compared to good ole QuikRete. In my lifetime I built 3 fences and installed countless mailbox posts and other things that required ground anchoring for many projects, and overall just feel that, for the money, QuikRete's performance can't be beat!
Date published: 2017-02-16
Rated 5 out of 5 by from Ranchers new best friend! The dairy farm runs 70 acres with three fences to ensure no cows walk off. After a storm, the outer fence was taken down by a large tree limb. Until I found this product, I would have had to carry all kinds of stuff, (water, concrete) through the wooded area. This worked without all of that Especially enjoyed the light weight package and that I did not need water.
Date published: 2016-06-19
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