What is post fix concrete used for?

Post fix concrete is specially designed to secure fence posts, gate posts, decking supports, and signposts quickly and firmly into the ground.

Does this mix require pre-mixing in a bucket or mixer?

No. This is a dry pour product – simply pour the concrete mix directly into the post hole and add water. No tools or mixing equipment needed.

How long does it take to set?

Post fix concrete sets in approximately 5 to 10 minutes depending on weather and ground conditions. Avoid moving the post during this time to allow for proper curing.

Can I reposition the post once the concrete is in?

You have a few minutes after pouring to ensure the post is straight. After that, the mix will begin to harden rapidly, so quick adjustments are essential.

Is this concrete strong enough for heavy-duty installations?

Absolutely. Once cured, it provides a solid, durable base capable of supporting gates, heavy fences, and other structural features exposed to wind and load.

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Glowhouse Postfix No-Mix Aggregate Weatherproof Concrete 20kg, Perfect for Fence and Washing Line Posts

Product ID: 625192128

Details

Material
Concrete
Brand
The Glowhouse
Colour
gray
Shape
Rectangular
Item form
Rectangular

💪Strong hold for all post types

⏱️5-10 min rapid set time

🌧️Weatherproof packaging

$838.82

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💥 Lock it down fast, last forever!

WEATHERPROOF READY - Sealed bag keeps concrete fresh and reliable, rain or shine.
SET FORGET IN MINUTES - No mixing hassle—just add water and secure your posts in under 10 minutes.
UNMATCHED POST STABILITY - Engineered for a rock-solid grip on wooden, metal, or electric fence posts.
DIY FRIENDLY PRO APPROVED - Trusted by builders and weekend warriors alike for fast, flawless results.
VERSATILE FOR EVERY PROJECT - Perfect for fences, washing lines, decking—commercial or residential.

Glowhouse Postfix No-Mix Aggregate Concrete is a 20kg ready-to-use, weatherproof concrete mix designed for rapid setting (5-10 minutes) and strong, durable holds on all types of posts. Ideal for both professional and DIY projects, it eliminates mixing mess and ensures reliable outdoor performance.

Specifications

ASIN	B0D37TK2GB
Best Sellers Rank	5,109 in DIY & Tools ( See Top 100 in DIY & Tools ) 1 in Concrete
Brand	The Glowhouse
Brand Name	The Glowhouse
Colour	gray
Customer Reviews	4.5 out of 5 stars 326 Reviews
Grade Rating	Commercial
Item Form	Rectangular
Item Shape	Rectangular
Item Weight	20 Kilograms
Item form	Rectangular
Item weight	20 Kilograms
Manufacturer	The Glowhouse
Material	Concrete
Shape	Rectangular
Specification Met	True
Unit Count	1.0 Count

Reviews

A**R

A very good product.

So easy to use and quick to dry

31.08.2025

J**S

Not a bad price, works well

Works well. We used a piece of bamboo to put channels in the mix for the water to get to the bottom layers. Dries quickly. Our arch is now solid as a rock. Very happy

11.01.2026

B**N

Not cheap but worth the money.

More expensive than a local store, presumably because of the weight. I used it for a rotary drier, with the hole half filled it held the pole firmly whilst I fiddled with a spirit level. It then set quickly with no need to prop it in place.

5.07.2025

N**G

Concert

Nice item but have to work fast sets very fast would buy again many thanks

5.11.2025

J**M

Recommend

Definitely did the job well. Myself and my neighbour needed to to some DIY repairs on our fence and this did the job at fixing a new post into the ground. We used the entire bag for one post. Recommend product.

19.10.2025

M**Y

Very good product

Very good product for installing fence posts and very easy to use with clear instructions on the bag. Delivery was quick. Would recommend.

28.08.2025

A**R

Post mix

19.04.2025

A**R

Very fast setting

Sets very fast , about 5 minutes for me

24.08.2025

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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$838.82

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to British Virgin Islands.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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