--- product_id: 58061508 title: "Sika Postfix - Fence Post Mix Light Green Expanding Foam 978 ml" brand: "sika" price: "9223 som" currency: KGS in_stock: true reviews_count: 8 url: https://www.desertcart.kg/products/58061508-sika-postfix-fence-post-mix-light-green-expanding-foam-978 store_origin: KG region: Kyrgyzstan --- # Blends with natural surroundings Sets in minutes Works from -22°F to 130°F Sika Postfix - Fence Post Mix Light Green Expanding Foam 978 ml **Brand:** sika **Price:** 9223 som **Availability:** ✅ In Stock ## Summary > 🚀 Seal it fast, stand it strong, blend it smart! ## Quick Answers - **What is this?** Sika Postfix - Fence Post Mix Light Green Expanding Foam 978 ml by sika - **How much does it cost?** 9223 som with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/58061508-sika-postfix-fence-post-mix-light-green-expanding-foam-978) ## 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 - • **Weatherproof Warrior:** Reliable performance from freezing cold to scorching heat. - • **Seamless Natural Blend:** Light green foam that disappears into your yard’s landscape. - • **Effortless Prep, No Mess:** Mixes right in the bag with a quick stir—no cleanup hassle. - • **Rapid Set, Rapid Success:** Get your posts secured in minutes, not hours. - • **Universal Post Protector:** Perfect for wood, steel, aluminum, and PVC posts alike. ## Overview The SIKA Sika Boom 180 Expanding Foam is a fast-setting, light green polyurethane foam designed to seal and support fence, mailbox, lamp, and signage posts. It mixes easily in the bag, sets within minutes, and withstands extreme temperatures from -22°F to 130°F. Compatible with multiple materials, it offers durable protection while blending naturally into outdoor environments. ## 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: Turned Me Into a Fence‑Building Professional (Almost) - This fence post mix worked way better than I expected. I poured it in, added water, and suddenly I looked like I actually knew what I was doing. The mix sets fast, holds strong, and saved me from wrestling with bags of concrete like I usually do. My fence is standing straight, my back isn’t destroyed, and my neighbor even asked who I hired — which is the biggest compliment I’ve gotten all year. Great product and zero hassle. Review: Holy cow, this stuff is awesome if you can read & follow simple directions! - Used this stuff for the first time tonight and I doubt I will buy another bag of concrete again. Have your hole dug out and ready. READ the instructions on the bag. Now here's the hard part - FOLLOW the instructions on the bag. If the temperature isn't right outside, WAIT until it is. Once you roll up the bottom part into the top part of the bag, the material will activate QUICKLY. I had enough time to mix the bag over my leg - shoe shine style - 5 or 6 times. Once the two sides are mixed, you have about 15 seconds and the bag WILL get hot. (Chemical reactions do that!) Have some scissors ready to cut open the corner of the bag as it shows you in the picture and pour out the mixture QUICKLY. It pours out like a liquid but it turns into a foam material... and it will expand QUICKLY. I popped in my new mailbox post, put a level on the top to make sure it was straight, and within 3 minutes I could let go and the post was standing on its own. The hole I dug out has been filled and is overflowing the top. I'm going to wait 24 hours and then take my saw-zaw out there and cut away the excess. *** For those of you concerned about the material bursting out of the sides of the bag, use some heavy packaging or duct tape and put a 2nd layer on both the left and right sides of the bag. Mine didn't burst, but I used it anyway because I saw other reviewers complain. Potential problem solved! *** And if you aren't going to use all of it, have a garbage bag outside with you to throw it in... because this stuff can get messy. YES it's more expensive than your local retail store, but duh desertcart is going to deliver it to you! This stuff helped me finish replacing a mailbox post in less than an hour. I highly recommend it and will buy this Sika product again! ## 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 | | Best Sellers Rank | #165,124 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #20 in Decking Posts | | Brand | SIKA | | Brand Name | SIKA | | Color | Light Green | | Compatible Material | Alloy Steel, Aluminum, Polyvinyl Chloride, Wood | | Customer Reviews | 4.4 out of 5 stars 467 Reviews | | Global Trade Identification Number | 00815202002611 | | Included Components | Sika - 483503 | | Item Dimensions | 8.5 x 9.8 x 2 inches | | Item Form | Foam | | Item Highlight | Fence post mix - Light Green - Mix-in-the-bag expanding foam for supporting non-structural posts - 978 ml | | Item Type Name | Sika - 483503 | | Item Weight | 2.5 pounds | | Item dimensions L x W x H | 8.5 x 9.8 x 2 inches | | Manufacturer | Sika USA | | Material | Polyurethane | | Material Type | Polyurethane | | Model | Sika - 483503 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | Sika - 483503 | | Style | Industrial | | Style Name | Industrial | | UPC | 815202002611 | | Unit Count | 1 Count | | Warranty Description | Warranty | ## Product Details - **Brand:** SIKA - **Item Weight:** 2.5 pounds - **Item dimensions L x W x H:** 8.5 x 9.8 x 2 inches - **Material:** Polyurethane - **Style:** Industrial ## Images ![Sika Postfix - Fence Post Mix Light Green Expanding Foam 978 ml - Image 1](https://m.media-amazon.com/images/I/81wKN2k+qdL.jpg) ![Sika Postfix - Fence Post Mix Light Green Expanding Foam 978 ml - Image 2](https://m.media-amazon.com/images/I/919OJ0srCcL.jpg) ![Sika Postfix - Fence Post Mix Light Green Expanding Foam 978 ml - Image 3](https://m.media-amazon.com/images/I/91iEzgH6dlL.jpg) ![Sika Postfix - Fence Post Mix Light Green Expanding Foam 978 ml - Image 4](https://m.media-amazon.com/images/I/81AiOPmQhrL.jpg) ![Sika Postfix - Fence Post Mix Light Green Expanding Foam 978 ml - 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 ### ⭐⭐⭐⭐⭐ Turned Me Into a Fence‑Building Professional (Almost) *by M***N on June 27, 2026* This fence post mix worked way better than I expected. I poured it in, added water, and suddenly I looked like I actually knew what I was doing. The mix sets fast, holds strong, and saved me from wrestling with bags of concrete like I usually do. My fence is standing straight, my back isn’t destroyed, and my neighbor even asked who I hired — which is the biggest compliment I’ve gotten all year. Great product and zero hassle. ### ⭐⭐⭐⭐⭐ Holy cow, this stuff is awesome if you can read & follow simple directions! *by P***L on August 17, 2023* Used this stuff for the first time tonight and I doubt I will buy another bag of concrete again. Have your hole dug out and ready. READ the instructions on the bag. Now here's the hard part - FOLLOW the instructions on the bag. If the temperature isn't right outside, WAIT until it is. Once you roll up the bottom part into the top part of the bag, the material will activate QUICKLY. I had enough time to mix the bag over my leg - shoe shine style - 5 or 6 times. Once the two sides are mixed, you have about 15 seconds and the bag WILL get hot. (Chemical reactions do that!) Have some scissors ready to cut open the corner of the bag as it shows you in the picture and pour out the mixture QUICKLY. It pours out like a liquid but it turns into a foam material... and it will expand QUICKLY. I popped in my new mailbox post, put a level on the top to make sure it was straight, and within 3 minutes I could let go and the post was standing on its own. The hole I dug out has been filled and is overflowing the top. I'm going to wait 24 hours and then take my saw-zaw out there and cut away the excess. *** For those of you concerned about the material bursting out of the sides of the bag, use some heavy packaging or duct tape and put a 2nd layer on both the left and right sides of the bag. Mine didn't burst, but I used it anyway because I saw other reviewers complain. Potential problem solved! *** And if you aren't going to use all of it, have a garbage bag outside with you to throw it in... because this stuff can get messy. YES it's more expensive than your local retail store, but duh Amazon is going to deliver it to you! This stuff helped me finish replacing a mailbox post in less than an hour. I highly recommend it and will buy this Sika product again! ### ⭐⭐⭐⭐⭐ 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. ## 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.kg/products/58061508-sika-postfix-fence-post-mix-light-green-expanding-foam-978](https://www.desertcart.kg/products/58061508-sika-postfix-fence-post-mix-light-green-expanding-foam-978) --- *Product available on Desertcart Kyrgyzstan* *Store origin: KG* *Last updated: 2026-10-02*