Bastion Quik Set Concrete is a blend of dry aggregate, graded sands, cement and set accelerating additives ideal for posts, uprights, letter boxes, clothes lines and other non-structural building applications. It is easy to use with no mixing required and, with a initial setting time of 20 minutes, is great for small jobs where rapid hardening is required.
Bastion Quik Set Concrete is a blend of dry aggregate, graded sands, cement and set accelerating additives ideal for posts, uprights, letter boxes, clothes lines and other non-structural building applications. It is easy to use with no mixing required and, with a initial setting time of 20 minutes, is great for small jobs where rapid hardening is required.
in 3 offers
The lowest price for Bastion 20kg Quik Set Concrete right now is $8.98 at Bunnings Warehouse, compared across 3 retailers.
The all-time low was $8.89 on 7 July 2025 — today's price is 1% above the lowest ever. This is at or near its all-time low — a good time to buy.
Prices last updated 15 Aug 2026.
Bastion 20kg Quik Set Concrete
Bastion Quik Set Concrete is a blend of dry aggregate, graded sands, cement and set accelerating additives ideal for posts, uprights, letter boxes, clothes lines and other non-structural building applications. It is easy to use with no mixing required and, with a initial setting time of 20 minutes, is great for small jobs where rapid hardening is required.
Bastion Quik Set Concrete is a blend of dry aggregate, graded sands, cement and set accelerating additives ideal for posts, uprights, letter boxes, clothes lines and other non-structural building applications. It is easy to use with no mixing required and, with a initial setting time of 20 minutes, is great for small jobs where rapid hardening is required.
Last updated at 15/08/2026 05:10:54
Bastion 20kg Quik Set Concrete
Delivery $12
Bastion 20kg Quik Set Concrete
Delivery $10
Bastion Quik Set Concrete 20kg
originally posted on bunnings.com.au
For your everyday concreting need. Worked well with my gabion bench legs. Advantage- sets fast. Disadvantage- sets fast. If you’re new to this product make sure to read and follow the instructions. Always put on eye protection and rebreather or at lest a mask.
originally posted on bunnings.com.au
I have no clue how to mix concrete, so this stuff is perfect for the small jobs I want to do myself. The bags are heavy, but I manage to pour it pretty evenly around the posts without too much trouble.
originally posted on bunnings.com.au
Not liking the new bags, too hard to open compared to the old paper based bags. Good product though.
Bastion 20kg Quik Set Concrete
Delivery $12
Bastion 20kg Quik Set Concrete
Delivery $10
Bastion Quik Set Concrete 20kg
For your everyday concreting need. Worked well with my gabion bench legs. Advantage- sets fast. Disadvantage- sets fast. If you’re new to this product make sure to read and follow the instructions. Always put on eye protection and rebreather or at lest a mask.
I have no clue how to mix concrete, so this stuff is perfect for the small jobs I want to do myself. The bags are heavy, but I manage to pour it pretty evenly around the posts without too much trouble.
Not liking the new bags, too hard to open compared to the old paper based bags. Good product though.
I had to fix two fence posts. I had to use quick setting concrete and this concrete did the job.
I always buy Bastion for my work. Recently I was doing a job and ran short of concrete. It was lockdown and could not get into Bunnings, and then I suddenly realised I had a bag which had been in the shed for more than 2 years. I took it out and it was still good. I would recommend this as the best for me.
Easy to mix, sets quickly. Bags are small enough to carry easily and big enough to give you a useful load.
Please change the data sheet as it's not for this product. This product is only for light use, like letter box post and not for driveways.
I bought this two weeks ago during lockdown, it has 80% turned into rocks, I have to use net bag to screen it. only 20% can be barely used. Because of Covid-19, I don't want to bother the procedure to change it.
I had a blue stone block front wall which was falling down, I dismantled the entire wall and then reset the bottom blocks using this concrete. Took no time at all.
works as advertised but significantly less volume than the non quick set alternative. so needed more bags to fill same size post hole that I did with the non quick set. depends what you need it for I guess.
