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B&Q£31.00Visit shop B&Q - Postfix Concrete Beige Fast Setting Mix For Fixing Posts Into Ground Trowel Application Home Diy Building Construction
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Heidelberg Materials Postfix Concrete is an ideal solution for DIY enthusiasts and builders who need a reliable, fast-setting medium for securing fence posts, gate posts, and various structural uprights. The primary benefit of this product is its rapid setting time, which allows for efficient project completion without the need for extensive bracing; however, users should note that the fast-setting nature requires quick execution once the water is added to ensure a smooth, stable pour before hardening begins.
| Model Part Number | 210768 |
|---|---|
| Brand | Heidelberg Materials |
No, this product is specifically formulated for setting fence and gate posts and is not intended for heavy-duty structural foundation slabs.
No, it is a pre-mixed product that already contains the necessary components for a high-performance setting.
The product is designed to set rapidly, though environmental factors like temperature and humidity can influence the exact timing.
Yes, it is perfectly compatible with timber, provided the timber is treated for ground contact.
Extreme cold can significantly slow down the setting process; follow general concrete pouring guidelines for temperature limitations.
Ensure all tools are ready and the post is properly positioned before adding water to the mix.
Check that the water-to-mix ratio was followed correctly and that the mix was thoroughly blended.
Use a spirit level immediately after pouring and adjust while the material is still in its initial plastic state.
To achieve the best results, ensure your post hole is dug to the appropriate depth and width as recommended for your specific post size. Clear the hole of any loose debris before placing the post. When mixing, follow the manufacturer's ratio precisely to maintain the integrity of the fast-setting chemical properties. Use a clean container for mixing if not applying directly into the hole. Once poured, ensure the post is held in the correct orientation until the initial set occurs. While no specialized post-treatment is required, ensuring the concrete surface is sloped slightly away from the post base helps prevent water pooling and extends the life of timber posts.
