---
product_id: 58061508
title: "Expanding Foam Fence Post Mix"
brand: "sika"
price: "R$69"
currency: BRL
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.br/products/58061508-expanding-foam-fence-post-mix
store_origin: BR
region: Brazil
---

# Natural light green blend Fast setting in minutes Works from -22°F to 130°F Expanding Foam Fence Post Mix

**Brand:** sika
**Price:** R$69
**Availability:** ✅ In Stock

## Summary

> 🚀 Secure your posts fast, strong, and sleek—because your project deserves the pro touch!

## Quick Answers

- **What is this?** Expanding Foam Fence Post Mix by sika
- **How much does it cost?** R$69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/58061508-expanding-foam-fence-post-mix)

## Best For

- sika enthusiasts

## Why This Product

- Trusted sika brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Set, Zero Wait:** Get your posts secured in minutes, not hours—perfect for busy pros who value speed.
- • **Weatherproof Strength:** Built to endure extreme temps from freezing cold to scorching heat, ensuring year-round durability.
- • **Effortless One-Bag Mix:** No mess, no fuss—just snip, stir, and pour. Ideal for professionals who demand efficiency on site.
- • **Seamless Natural Camouflage:** Light green foam blends effortlessly with your yard or landscaping for a discreet, polished finish.
- • **Universal Post Compatibility:** Works flawlessly with wood, steel, aluminum, and PVC posts—versatility that matches your project needs.

## Overview

Sika Expanding Foam Fence Post Mix is a fast-setting, weather-resistant polyurethane foam designed to seal and support fence, mailbox, lamp, and signage posts. Its light green color blends naturally with outdoor environments, and it sets within minutes after mixing directly in the bag. Suitable for extreme temperatures (-22°F to 130°F) and compatible with multiple post materials, it offers a quick, clean, and durable solution for professional-grade post installation.

## Description

When erecting mailboxes, signage, fencing, or lamp posts, this Sika pro select foam concrete mix offers a premier solution for sealing and protecting the base of the posts. It's pre-proportioned for better quality control and reliable performance, and it mixes directly in the bag in seconds — just snip the corner and pour. It sets within minutes, so you can get more done in less time. Use it for posts made of wood, steel, aluminum, and PVC. Be sure to protect from high heat, as it may cause the bag to burst. For best performance, store at temperatures ranging from 41 to 89 °F. Condition mix to between 65 to 77 °F for at least 2 hours prior to use.

Review: WoW! Be ready to pour! - First I must say, it works! We used one bag on 2 fence posts that were leaning in our horses' paddock . After pulling the posts back into position with our tractor we were ready to pour. READ DIRECTIONS carefully, and be ready - we used on an 80 degree day, and never got to the "cut open" step because it activated so quickly once mixed, that it popped open & began bubbling out. That's why it's imperative that you are in position over the hole when you start kneading and mixing in the bag. And don't skip the goggles and protective gloves. Result was exceptional. Set up quickly, and we left it for half an hour before untying tractor ties, and voila! Sturdy as can be. I gave it a 3 of 5 for value because I did find that you can purchase it cheaper through Home Depot or Lowes, @ $13.99 vs $23.99 here. Would highly recommend the product- way easier than mixing concrete, and virtually no set up time.
Review: Works great. - I used this foam to install a post for a mailbox this weekend. It worked great! The process was easy and the post seems to be held firmly in the ground. Time will tell if it continues to work long-term but everything is great now.

## Features

- PROTECTS BASE OF POST FOR GREATER DURABILITY — Sika PostFix mix is the perfect choice for sealing and supporting fence posts, mailbox posts, lamp posts, signage posts, and more
- FAST SETTING — Once mixed together, the foam mix quickly expands and sets, fully setting within mere minutes. Make sure your post is up and ready, because this mix works fast
- BLENDS NATURALLY — The light green color of the foam allows it to blend easily with grassy natural surroundings such as yards, fields, and landscaping
- SUITABLE FOR COLD WEATHER — Once set, Sika post fence mix will withstand temperatures as cold as -22 °F and as warm as 130 °F, compatible with a wide range of regions and conditions
- QUICK AND EASY PREP — Sika fence post mix foam mixes right in the bag. Even better, you only need a few seconds to stir components together and it's ready. No messy containers to clean up

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01N1Q5YNE |
| Assembly Required | No |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #252,738 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #25 in Decking Posts |
| Brand | SIKA |
| Color | Light Green |
| Customer Reviews | 4.4 4.4 out of 5 stars (466) |
| Date First Available | August 16, 2017 |
| Global Trade Identification Number | 00815202002611 |
| Included Components | Sika - 483503 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1 pounds |
| Item model number | Sika - 483503 |
| Manufacturer | Sika Corporation |
| Material | Polyurethane |
| Number of Pieces | 1 |
| Part Number | Sika - 483503 |
| Product Dimensions | 8.5"L x 9.8"W |
| UPC | 815202002611 |
| Unit Count | 1.0 Count |
| Warranty Description | Warranty |

## Product Details

- **Assembly Required:** No
- **Brand:** SIKA
- **Color:** Light Green
- **Material:** Polyurethane
- **Product Dimensions:** 8.5"L x 9.8"W

## Images

![Expanding Foam Fence Post Mix - Image 1](https://m.media-amazon.com/images/I/81wKN2k+qdL.jpg)
![Expanding Foam Fence Post Mix - Image 2](https://m.media-amazon.com/images/I/919OJ0srCcL.jpg)
![Expanding Foam Fence Post Mix - Image 3](https://m.media-amazon.com/images/I/91iEzgH6dlL.jpg)
![Expanding Foam Fence Post Mix - Image 4](https://m.media-amazon.com/images/I/81AiOPmQhrL.jpg)
![Expanding Foam Fence Post Mix - Image 5](https://m.media-amazon.com/images/I/81d2+F6EW0L.jpg)

## Questions & Answers

**Q: Am i missing something or is this way more expensive than concrete?  I know concrete can be a pain, but this stuff looks to be 4 or 5 times the price.**
A: Yes, this is way to expensive. Home Depot and Lowes in Texas sells it for 9.88 a bag

**Q: Can I mix in a container other than the bag to use smaller amounts at a time?**
A: This product appears to be a typical two-part expanding polyurethane foam. These are not particularly unusual products.

They are usually not air-activated. You mix the two chemicals together in equal parts and then fairly quickly the reaction takes place and the liquid expands into a rigid foam.

You could probably extract equal portions of the two chemicals from the two pouches, but really since you're here on Amazon just search for expanding polyurethane foam and you'll find the chemicals in various quantities where you won't have to deal breaking into the bag and then storing the ruptured bag(s).

**Q: Can this be used to set Deck Posts?**
A: Its advertised to do so but I have not used mine...waiting on spring

**Q: Is this strong enough for deck posts that only come up 2 feet?  What is the expansion volume for a bag?**
A: No. Concrete for beck posts

## Customer Reviews

### ⭐⭐⭐⭐⭐ WoW! Be ready to pour!
*by C***M on June 29, 2022*

First I must say, it works! We used one bag on 2 fence posts that were leaning in our horses' paddock . After pulling the posts back into position with our tractor we were ready to pour. READ DIRECTIONS carefully, and be ready - we used on an 80 degree day, and never got to the "cut open" step because it activated so quickly once mixed, that it popped open & began bubbling out. That's why it's imperative that you are in position over the hole when you start kneading and mixing in the bag. And don't skip the goggles and protective gloves. Result was exceptional. Set up quickly, and we left it for half an hour before untying tractor ties, and voila! Sturdy as can be. I gave it a 3 of 5 for value because I did find that you can purchase it cheaper through Home Depot or Lowes, @ $13.99 vs $23.99 here. Would highly recommend the product- way easier than mixing concrete, and virtually no set up time.

### ⭐⭐⭐⭐⭐ Works great.
*by M***S on October 7, 2024*

I used this foam to install a post for a mailbox this weekend. It worked great! The process was easy and the post seems to be held firmly in the ground. Time will tell if it continues to work long-term but everything is great now.

### ⭐⭐⭐⭐⭐ Great light weight alternative for concrete when pole mounting
*by N***S on January 10, 2023*

I am a 67 year old female and needed to have a sturdy pole placed in the ground for a weather station. I am past carrying 70 pound bags of concrete around and was searching online and found this. Super easy to use…cool to watch. Hardens really quickly, been in the ground a few months now and has not moved or shifted. Advice, make sure that you follow directions about the depth of the hole. I was about 2” shy of what they recommended and it did mound about 2” above ground. Stuff is good enough that I did re-purchase for my next project. UPDATE: it is now well past the horrible AZ summer we had this year and now into very cool nights. I have noticed zero change in how strong this stuff is. Super satisfied. Putting in a post for a motion camera and cannot wait…the stuff is so cool to watch.

## Frequently Bought Together

- SIKA MIX FENCE POST 980ml per 10 EA
- Johnson Level & Tool 175-O Orange Post & Pipe Level, 4" x 5" x 9", Orange, 1 Level
- H.B. Fuller Fast 2K Fence Post Mix and Concrete Alternative and Replacement for Fence Post and Mail Post Installs. 32.8 oz Bag of Expanding Composite Footing Compound

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.br/products/58061508-expanding-foam-fence-post-mix](https://www.desertcart.com.br/products/58061508-expanding-foam-fence-post-mix)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-02*