2 lb. PostFix Fence Post Mix, Mix-In-The-Bag Expanding Foam for Supporting Non-Structural Posts, Mailbox, Sign
- 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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Return this item within 90 days of purchase.
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Product Details
About This Product
Sika Fence Post Mix is a 2-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 lbs. 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 residentssee Prop 65 WARNINGS
Product Information
Specifications
Container Size: 33 oz.
Dimensions
Container Size | 33 oz. |
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Details
Returnable | 90-Day |
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Warranty / Certifications
Manufacturer Warranty | One year from date of installation. |
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Questions & Answers
can you use on a pvc privacy fence post
Can you put in ground to support a 4x4 post
Would this product be suitable for a clothes line post?
Will it work at temperatures below 60 deg f
How many holes will this bag fill?
Is this closed cell or open cell foam
Will this hold a 20 foot flagpole?
No, a twenty foot high flag pole can have surprisingly strong fulcrum force applied to the in ground portion from lateral wind forces. There are code requirements for poles. But at minimum a 20’ flag pole should be buried in 24”x60” concrete.
No, Sika PostFix Fence Post Mix is not recommended for a 20-foot flagpole. This product is designed for supporting non-structural posts like fence gate posts, mailbox posts, signage posts, and lamp posts. A 20-foot flagpole is considered a structural post and would be exposed to significant sideways forces, making this product unsuitable for that application. For a 20-foot flagpole, it is generally recommended to use concrete, with a minimum burial of 24 inches by 60 inches, and to consult local code requirements for poles.
how many posts can I set with one bag
One post
One post
The number of posts you can set with one bag of Sika PostFix Fence Post Mix depends on the type of post and the diameter and depth of the hole. Each pouch produces approximately 0.7 cubic feet (20 liters) of expanded foam. For common non-structural posts, one pouch is often sufficient for holes of similar or greater depths, depending on the diameter. For example: A 4x4 inch square post in an 8-inch diameter hole with a 36-inch depth typically requires 1 pouch. A 2-inch round post in a 6-inch diameter hole with a 46-inch depth typically requires 1 pouch. It is important to consider the specific dimensions of your post and the hole you are digging, and always refer to local frost depths and building codes for guidance on appropriate hole dimensions.
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