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

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

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Product ID: 625192128

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Details

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

⚡5-10 min rapid set time

💪Strong hold for all post types

🌧️Weatherproof, no-mix bag

Frequently Bought Together

The Glowhouse Postfix Concrete Fast Setting Strong Hold. Perfect for All Types of Post, Fence Post, Washing Line Post. Easy to Use Postcrete, No Mix Aggregate Weatherproof Bag 20kg

Faithfull FAISGTPT6 Soft-Grip Pointing Trowel 150mm (6in)

Description

⚡ Secure your space in minutes—strong, fast, and foolproof!

WEATHERPROOF PACKAGING - Keeps your concrete mix fresh and ready, rain or shine, for ultimate convenience.
LIGHTNING FAST SET TIME - Get your posts secured in just 5-10 minutes—no downtime, no delays.
EFFORTLESS NO MIX FORMULA - Simply add water and go—no mess, no guesswork, just reliable strength.
UNIVERSAL POST COMPATIBILITY - Perfectly engineered for wooden, metal, or electric fence posts—one mix fits all.
VERSATILE PROFESSIONAL GRADE - Ideal for DIYers and pros alike—decking, fencing, washing lines, and more.

The GlowhousePostfix Concrete is a 20kg, no-mix, fast-setting concrete mix designed for all types of posts. With a rapid 5-10 minute set time and weatherproof packaging, it delivers a strong, durable hold for wooden, metal, or electric fence posts, making it the go-to solution for both professional builders and DIY enthusiasts.

Specifications

Item weight	20 Kilograms
Specification met	True
Number of items	1
Manufacturer	The Glowhouse
Part number	PFC
Item Weight	20 kg
Item Weight	20 kg
Manufacturer reference	PFC

Have a Question? See What Others Asked

What is post fix concrete used for?

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

How long does it take to set?

Can I reposition the post once the concrete is in?

Is this concrete strong enough for heavy-duty installations?

Reviews

A**R

A very good product.

So easy to use and quick to dry

31.08.2025

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

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

M**S

Suitable for even people like me

I didn't think for a minute this would work - and it did! Suitable for incapable people like me. Instant and effective

10.07.2025

E**T

Easy to use & it doesn't take

It seems very good.

6.08.2025

G**S

Fabulous perfect job

Perfect for putting my washing lines up in garden as just the right amount fabulous

9.05.2025

T**N

Dry quick

Great quick dry

19.03.2025

F**E

Mr mckie

This is a great item to have at hand for me as a gardener to secure fence posts and washing poles

16.07.2025

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