Westbuild Kwikset Concrete is a premium blend of sand, aggregates, general purpose cement and fast setting accelerants to provide quick stabilising support. This fast setting concrete sets in 5-15 minutes and is ideal for posts, clothes hoists, letterboxes, garden lighting, pergolas and any non-structural posts. It is not suitable for structural use. Now available in new rainproof packaging, keeping it fresher for longer, it can be stored outdoors and is cleaner to transport and handle.
Westbuild Kwikset Concrete is a premium blend of sand, aggregates, general purpose cement and fast setting accelerants to provide quick stabilising support. This fast setting concrete sets in 5-15 minutes and is ideal for posts, clothes hoists, letterboxes, garden lighting, pergolas and any non-structural posts. It is not suitable for structural use. Now available in new rainproof packaging, keeping it fresher for longer, it can be stored outdoors and is cleaner to transport and handle.
in 7 offers
Westbuild 20kg Kwikset Concrete
Westbuild Kwikset Concrete is a premium blend of sand, aggregates, general purpose cement and fast setting accelerants to provide quick stabilising support. This fast setting concrete sets in 5-15 minutes and is ideal for posts, clothes hoists, letterboxes, garden lighting, pergolas and any non-structural posts. It is not suitable for structural use. Now available in new rainproof packaging, keeping it fresher for longer, it can be stored outdoors and is cleaner to transport and handle.
Westbuild Kwikset Concrete is a premium blend of sand, aggregates, general purpose cement and fast setting accelerants to provide quick stabilising support. This fast setting concrete sets in 5-15 minutes and is ideal for posts, clothes hoists, letterboxes, garden lighting, pergolas and any non-structural posts. It is not suitable for structural use. Now available in new rainproof packaging, keeping it fresher for longer, it can be stored outdoors and is cleaner to transport and handle.
The lowest price for Westbuild 20kg Kwikset Concrete right now is $8.59 at Decking Perth, compared across 7 retailers.
The all-time low was $8.50 on 31 Aug 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.
Last updated at 15/08/2026 05:12:25
WESTBUILD - Concrete Rapid Set/Kwikset Dry-Mix – Rainproof Bag 20kg
Concrete Kwikset Dry Mix – 20kg bag
Westbuild Kwikset Concrete – 20kg Rainproof Bag
Delivery between 21–26 Aug $110
Westbuild 20kg Kwikset Concrete
Delivery $12
Westbuild 20kg Kwikset Concrete
Delivery $10
Westbuild Rapid Set (KWIKSET )Concrete 20kg - Rainproof Bag
Free delivery
Kwikset Concrete
Free delivery
originally posted on bunnings.com.au
Do not buy! I brought 3 bags, and none of them set. It was a crumbling mess, lost hours to purchasing this product.Bunnings were great and refunded me and recommend a different product.
originally posted on bunnings.com.au
Followed instructions perfectly using measured amount of water for putting in a fence post. The first bag didn’t go off even after 24 hours so I had to dig it out had a second bag there so I gave that to go to and it also didn’t go off despite following the instructions, and now I’m having to dig out the second bag too. As per the previous review that I should’ve read before purchasing the product, it left a crumbly mess.Don’t waste your time with this product.
originally posted on bunnings.com.au
Does not set! Six hours later and it is a crumbly mess.
WESTBUILD - Concrete Rapid Set/Kwikset Dry-Mix – Rainproof Bag 20kg
Concrete Kwikset Dry Mix – 20kg bag
Westbuild Kwikset Concrete – 20kg Rainproof Bag
Delivery between 21–26 Aug $110
Westbuild 20kg Kwikset Concrete
Delivery $12
Westbuild 20kg Kwikset Concrete
Delivery $10
Do not buy! I brought 3 bags, and none of them set. It was a crumbling mess, lost hours to purchasing this product.Bunnings were great and refunded me and recommend a different product.
Followed instructions perfectly using measured amount of water for putting in a fence post. The first bag didn’t go off even after 24 hours so I had to dig it out had a second bag there so I gave that to go to and it also didn’t go off despite following the instructions, and now I’m having to dig out the second bag too. As per the previous review that I should’ve read before purchasing the product, it left a crumbly mess.Don’t waste your time with this product.
Does not set! Six hours later and it is a crumbly mess.
Very easy to use product that does exactly what it is designed to do. Used it for a clothes line and a letterbox. As with any product, always follow the manufacturers instructions.
I've been using Kwikset for my fencing business for years and never had any issues, always make sure you use enough water into the hole then pour the bag in then give it a prod with a rod or stick, initial set is within minutes and post doesn't need support.
Great product, does exactly what it says on the tin! 😁
Convenient and easy to use.
Absolute rubbish product. Clumpy, crumbly and impossible to prepare correctly. Coming from an experienced concreter. Absolutely avoid.
Half the bags didn’t set properly. Had to dig it out after a few hours (crumbling mess) and re do the whole job. Lucky it was a job for myself and not a client. Would have been better if using standard concrete and waiting the longer time period. Also the other guy that rated this product implied it comes in a tin? Doubt it’s a real review. Almost ruined the whole job, never going to use it again. Wonder it they will refund the slurry if I bring it back to the store?
