
Sika Post Fix 979-ml Fast Setting Fence Post Mix
Article #66145011
Model #465222
Format 979ML
This item is not currently available for immediate purchase, but can be ordered by visiting the selected store.
Hassle-Free Returns
90 days to return or exchange in original condition and packaging.
Read Return Policy
Warranty
None
Description
Sika Post Fix is a fast-setting two-part, pre-proportioned polyurethane resin that produces an expanding foam when mixed. It is specially formulated and packaged to deliver a lightweight, mix-in-the-bag, fast-setting and high-strength backfill for in-ground supports made of wood, steel and PVC. Sika Post Fix is based on Sika's proven foam technology and designed for easy, convenient and quick support of many post types. Ideal for fence and gate posts, signage posts, and mailbox posts.
- No more carrying of heavy concrete bags - 1 bag of Sika Post Fix replaces 2 bags of cementitious product
- No mixing tools or water required - simply roll the bag to break the seal and allow the resins to mixed in the bag
- Sets in 3 minutes, allowing faster fixing of posts
- Install your fence after 2 hours
- For all types of post: wood, metal, aluminum, PVC
- Clean, dust free and with much reduced packaging to dispose of

Product specifications
Fast Setting
Yes
Warranty
None
Application Method
Gloved hand
Base Material
Polyurethane
Container Type
Bag
For Use With
Concrete and mortar
Manufacturer Color/Finish
Grey
Series Name
Sika Post Fix
Type
Repair
Unit of Measure
Ounce(s)
Unit of Measure Quantity
1
VOC Level
0
can this product be used for pool deck posts
Thank you for your inquiry. We do not recommend Sika Post Fix for this application.
Date published: 2024-06-20
How many posts will it do?
Thank you for your inquiry. Many factors including hole diameter, hole depth and post diameter will determine the number of pouches required. Please refer to our Product Data Sheet, which can be found here https://can.sika.com/dam/dms/ca01/a/Sika%20Post%20Fix_Rpds.pdf
Date published: 2024-04-26
I would like to use this product to fill an 8x8" cavity in a tree. Have you had any feedback in this application?
Thank you for your inquiry. We require more information to best help with your project. Please call us 1-800-933-7452.
Date published: 2024-03-08
Sika Post Fix 979-ml Fast Setting Fence Post Mix is rated
out of
5 by
13.
Rated 5 out of
5
by
Pierre M from
Excellente stabilité
J'ai installer 4 poteaux de 6x6 et 2 poteaux de 4x4 avec a 4 pieds de profondeur. Mon sol est composé a 95% de sable. Le tout soutien ma gallerie de 16' x 18' et n'as pas bouger depuis 4 ans. 2 sacs par trou pour les 6x6 et 1 par trou pour les 4x4. J'ai utilisé différents produits au fils des années comme supports de fixations tel que des deck blocs, de la poussières de roches et du ciments mais rien n'est plus facile tout en demeurant solide comme que ce produit. Je projete ajouter un toit permanent en ajoutant 2 autres poteaux de 6x6 et j'utiliserais encore le Post Fix.
Date published: 2022-08-09
Rated 1 out of
5
by
James31 from
Not the best
I used different foam on 6 posts last year and they all turned out great. So I decided to go the expanding foam route again for 2 posts when I was putting in a gate. This was the brand available this time. I mixed for 30 seconds like instructed and dumped it in. Looked good at first but the next day when I checked on it the foam had pulled away from the walls of the hole. It’s firmly attached to the post itself but I’m able to remove the post with foam from the hole due to an inch gap all the way around the outside. I like expanding foam for its quick setting time and minimal mess but this brand is No Good.
Date published: 2021-08-07
Rated 1 out of
5
by
Enimo from
Fonctionne tres mal
Produit cher, il est ecrit que ca vaut 2 sac de beton, ce qui n est pas vrai. Ca tient mal le poteau. J ai eté obligé de mettre du beton dessus pour renforcer.
Date published: 2021-06-06
Rated 5 out of
5
by
Crocket from
Could set posts and continue working on fence 2 hr
Bought this just before lockdown . Perfect timing .
Date published: 2021-04-24
Rated 1 out of
5
by
WillL from
Dumb Idea
Concrete is an anchor but foam floats. Can't be good.
Date published: 2021-04-15
Rated 5 out of
5
by
JaimieRoss from
Worked great, everytime
I probably have used this product on over 20 posts. Worked great everytime.
Date published: 2021-04-01
Rated 1 out of
5
by
Horrible from
Horrible
Bought this on advice of a t.v ad
Horrible product. Never again.
Loose and wiggly posts.
Date published: 2020-10-29
Rated 3 out of
5
by
Deb8 from
Foam
When I watched the tv commercial for this product it came across like cement. Well it sets firm like cement but is just spray foam. It does the job but you can’t control the amount you can use. So each post is a full $18.00 bag.
Date published: 2020-10-06