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Post Anchor Fast Setting 33.8 -fl oz Fast setting

Ratings & Reviews for Fast 2K Post Anchor Fast Setting 33.8 -fl oz Fast setting

4.2
323
Review
 4.2 out of 5
323 Reviews


78% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The product provides a convenient and time-saving alternative to concrete for setting fence and mailbox posts. Many customers found it easy to use, with the product expanding and hardening quickly to securely hold the posts. However, some reported issues with the product not performing as expected, and it may not be as durable or suitable for larger or heavier applications as concrete. Careful following of the instructions and product limitations is recommended.

Customer review summary generated by AI, including incentivized reviews.
323 Customer Reviews

Great product!

Would Recommend

I was able to install a post, make slight adjustments to keep leveled while it cured and after 15 min, used a handsaw to cut excess and finish mailbox install in 30 minutes. Great time and labor saver alternative to cement mix.

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The bag can blow open.

Would Not Recommend

There's 2 bags separated by a seal, they tell you to squeeze the bottom bag until the seal breaks and mix the contents of the 2. The problem is the tip bag also burst open, losing some of the mix. I lost about 25 to 30% of the mix.

October 18, 2025
Verified Purchaser
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Easy to use.

Would Recommend

Easy to use..more product than you would think. Sets up fast and holds firm!

October 17, 2025
Verified Purchaser
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Not that great for me.

Would Not Recommend

I don't know if I got a bad batch , but really didn't work well. Follow directions, rolled and rubbed across wheel barrow edge for recommend time. It barely expanded and was very slow at that. Was using on a mailbox post. If it works this bad I would hate to use it on fence or deck. Waste of money. I'll stick with quickcrete.

October 15, 2025
Verified Purchaser
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Not cement! High powered spray foam.

Would Not Recommend

This is not cement. It's like high powered spray foam. It was very easy to mix. Once I started pouring it into the hole, it foamed up way more than what was expected. It came out of the hole and went into the grass and everything around it. If you are in a pinch, I guess it will work. I definitely would not buy again with the other options of actual cement available.

October 15, 2025
Verified Purchaser
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Amazing simple and quick

Would Recommend

I used it to set posts for a split level fence. Saved a ton of time and the posts are extremely set. Within minutes you can use them. And the bags are so light.

October 9, 2025
Verified Purchaser
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Lowe's strikes again

Would Not Recommend

Lowe's has the deck post and post products listed as the same item number. But different model numbers The stores claim to have the deck post (stronger load bearing product) in stock, but they do not. Every store has the EXACT same if each product, because they really only carry one. A big waste of my time looking for the product.

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Fast 2K Post Anchor

Would Recommend

this stuff really works. set and brace the post but you have 30 seconds after the pour to get it perfectly centered, then do not move again as you will break the bond with the pole. Really, don't fiddle after it starts setting. Mix really well

October 3, 2025
Verified Purchaser
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Would wear gloves can be messy

Would Recommend

Easy to ues and quick set up

September 14, 2025
Verified Purchaser
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1/3 was bad

Would Not Recommend

Works ok, might have had a bad bag

September 2, 2025
Verified Purchaser
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Worked great

Would Recommend

As advertised. With little experience did a great job. If first time - buy two bags.

August 21, 2025
Verified Purchaser
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Fast acting!

When it says "fast" it means really, really fast! I used it to secure PVC piping in ground to secure a fence gate latch and it worked incredibly well. It grows in size very quickly, so pour slowly and let the chemical reaction happen- it will double in size very fast.

August 14, 2025
Verified Purchaser
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Post Anchor 33.8 fluids Fast 2k

Would Not Recommend

Not that good

August 12, 2025
Verified Purchaser
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Better than concrete and much easier

Would Recommend

Very easy to use

August 11, 2025
From Deck Post Anchor Fast Setting 33.8 -lb Fast setting Verified Purchaser
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