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Internet # 205671519

Model # 483503

Store SKU # 1001358552

33 fl. oz. Sika PostFix Fence Post Mix, Mix-In-The-Bag Expanding Foam for Supporting Non-Structural Posts, Mailbox, Sign

$16.46
  • Mix-in-the-bag expanding foam for supporting non-structural posts
  • Sets in as fast as 3 minutes
  • Great for fence, mailbox, gate and sign post setting
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Product Details

About This Product

Sika PostFix 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.

Highlights

  • 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
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 205671519

Model # 483503

Store SKU # 1001358552

Additional Resources

Specifications

Dimensions

Container Size

33 oz.

Product Depth (in.)

0.5 in

Product Height (in.)

8.5 in

Product Length (in.)

10 in

Details

Returnable

90-Day

Use Location

Floor

Warranty / Certifications

Manufacturer Warranty

SIKA warrants this product for one year from date of installation to be free from manufacturing defects and to meet the technical properties on the current Product Data Sheet if used as directed within the product’s shelf life.

Questions & Answers

518Questions
caret
Q:Will it bond to wood and/or PVC?
by|Apr 16, 2024
0 Answer
Answer This Question
caret
Q:how soon after pouring the Sika Postfix can I backfill ?
by|Apr 15, 2024
1 Answer
Answer This Question

A:  trijohn, we recommend waiting until the material has achieved final set, which typically takes 2 hours.

by|Apr 15, 2024
    caret
    Q:Can it be used for a granite mailbox post?
    by|Apr 13, 2024
    0 Answer
    Answer This Question
    caret
    Q:Can you please tell me if I can use this foam to fill in the gaps underneath my fence? My terrain is uneven.
    by|Apr 13, 2024
    0 Answer
    Answer This Question
    Showing 1-4 of 518

    Customer Reviews

    4 out of 5

    • 4 out of 1,815 reviews
    • 66% recommend this product
    Filter by:
    Showing 1-10 of 1,815 reviews
    Won’t last
    I thought why not, in my head I knew it wouldn’t last. I’ve seen the foam buoys that rot apart. Well it lasted almost 4 years, had I used the bag of concrete at half the price I wouldn’t be spending my beautiful Saturday digging out the post to re set it in “longer lasting” old fashioned concrete
    by
    Response from Sika Retail RepApr 15, 2024
    Apple, we're sorry to hear about your experience with our Sika PostFix. Please give us a call at 1-800-933-7452 to contact our Technical Service Team and let us know more and how we can help. SikaRetail
      I watched the videos and read instructions before using this product. The one part we struggled with was getting the internal seal to pop to mix the two solutions together. It didn’t foam up right away, so I used a stick to mix up the solution in the hole. It eventually started foaming up around the mailbox post. It looked like a mushroom cloud! Cutting it apart to remove the excess was easily done with a hand saw and chisel. I recommend for a mailbox post.
      by
      • Verified Purchase
      Burst in my face
      I’ve used many of these packs before but today while rolling to mix the bag burst and part A sprayed in my face. Fortunately it washed off my arms and face but my coat is ruined. I’ll never try it again as the consequences of the bag failing are too dire.
      by
        3 found this review helpful
        The bag exploded
        DO NOT BUY GHIS. I mixed it up for 30 seconds just like directions, grabbed the bag and was going to walk three steps to open it and pour it and it exploded all over me. They owe me new clothes and shoes.
        by
        Response from Sika Retail RepJul 31, 2023
        Kris, we are sorry to hear about your experience with our Sika PostFix. Please give us a call at 1-800-933-7452 or send us an email at residential.sika@us.sika.com to tell us more and how we can help. SikaRetail
          1 found this review helpful
          worst
          this may be good if using for just the perfect hole. if it makes more then the hole will use it is a pain in the ...how do you get rid of extra.
          by
          Response from Sika Retail RepJul 18, 2023
          treedude, we are sorry to hear about you experience with Sika PostFix. Pease give us a call at 1-800-933-7452 to contact our Technical Service Team or send us an email at residential.sika@us.sika.com to tell us more and how we can help. SikaRetail
            • Recommended
            1 found this review helpful
            Buyer and user beware
            I’m limited to 500 letters on this review so sorry you get this version. If you need a clean, permanent, and professional job DO NOT use this product. I might have received the one bag that had a bad spot in the seal but that’s all it took to never want to use it again. Thankfully Homedepot retuned my money. Now I now get to try and see how to remove the residue off my concrete patio and everything else it touched when the bag split open. Looks like I’m not the only one either, beware!!
            by
            Response from Sika Retail RepJul 14, 2023
            Robert, we're sorry to hear about your experience with Sika PostFix. Please send us an email residential.sika@us.sika.com and let us know more and how we can help. SikaRetail
              1 found this review helpful
              Sika PostFix
              Excellent product! 1 bag filled and set a fence post in a matter of minutes. After setup overnight, feels as strong as concrete!
              by
              Response from Sika Retail RepMay 24, 2023
              Ernie, thank you for choosing Sika for your project! SikaRetail
              • Verified Purchase
              • Recommended
              1 found this review helpful
              Best fence post mix
              This is the BEST stuff to use for fencing, installed a vinyl fence and it is STRONG.
              by
              • Verified Purchase
              • Recommended
              Shrinks after expanding!
              The product looks like it will set up nicely as it expands. However, after 24hrs of cure time the foam appears to settle and actually shrinks! This defeats the whole purpose of using an expanding foam! Wasted money and time only to have 4x4 posts covered in a foam base that wobbles back and forth. I used Fast2K applied in the gaps of this junk and it set up PERFECTLY. Recommend Fast2K over this product. No comparison.
              by
              Response from Sika Retail RepAug 12, 2022
              Hi EDB2143 we're sorry to hear of this. Give us a call at 1-800-933-7452 to contact our Technical Service Team and let us know more/how we can help. SikaRetail
                6 found this review helpful
                lasted 1 week
                I followed the instructions by the book. Some people here say theirs lasted months or even a full year. Mine became soft after 1 week.
                by
                Response from Sika Retail RepDec 16, 2021
                Hi Adrian, we're sorry to hear this. Project longevity varies from customer to customer, however after only a week, there may have been other factors that effected the overall application. Please feel free to reach out to us with any questions. SikaRetail
                  • Recommended
                  13 found this review helpful
                  Showing 1-10 of 1,815 reviews