Search  for anything...
H.B. Fuller

Fast 2K Deck Post Mix - 2 Pack | Expanding Foam Concrete Alternative for Deck Post, Fence Post, Mailbox, & Playground Equipment Installs. Fast-Setting, Post Foam

    • Based on 1,539 reviews
Condition: New
Checking for product changes
$47.99 Why this price?

Buy Now, Pay Later

As low as $8.00 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, May 17
Order within 44 minutes
Available payment plans shown during checkout

Size: 2 Pack


Style: Deck Post Mix


Features

  • SAVE YOUR BACK: Quick, lightweight patent pending technology replaces 80-100lbs of concrete with a lightweight bag that does not require messy mixing with water that requires cleanup & preparation for filling post holes
  • FAST & SECURE: Ready to build in 15 minutes, and mixes in seconds in place and in the bag. All that you need in a compact and lightweight 2.5lb bag that mixes into a waterproof protection for your deck post, fence post, mailbox, and playground equipment
  • PRO TECHNOLOGY: It's the same technology used to set utility poles by the professionals. Now you can quickly and securely set your fence posts and mail posts with a minimum of fuss & mess securely.
  • EXPANDING COMPOSITE TECHNOLOGY: Fast 2K Deck uses an expanding composite technology which is stronger than traditional concrete. Designed to adhere to wood, Vinyl and metal posts.
  • HYDROPHOBIC TO PREVENT ROT: Unlike concrete which absorbs water which can damage metal and wood, the Fast 2K Deck product is waterproof and hydrophobic which prevents water from getting into your posts, reducing rot, rust, deterioration and other water-related damage.

Manufacturer: ‎H.B. Fuller


Item Weight: ‎5.23 pounds


Product Dimensions: ‎6 x 10 x 12 inches


Size: ‎2 Pack


Style: ‎Deck Post Mix


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: September 7, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • It actually works!
Size: 1 Pack Style: Fence Post Mix
I was skeptical. I put my mailbox with a "drive-in" type post; however, it immediately began wobbling, even after I drove it deeper! The soil is loose and stony, so I wasn't sure anything would hold, cement had already failed. I saw this product and thought, why not give it a chance? Getting the plastic "divider" off was the most difficult part of the process! Nevertheless, I got it off and began mixing. The package began getting hot and expanding. After the prescribed mixing (30 seconds), I moved to the hole where I planned installing the new post and tore off a corner of the package. Surprise! The "foam" began spewing like a volcano! It got everywhere! My hair, arm, and all over the new post before I was able to direct it into the hole. I was able to finally direct the flow where it was supposed to go. I had just enough time to level the post before it began hardening. Within a couple of minutes the post was in and solid. I gave it overnight before shaking the new mailbox post, it is rock solid! I finally have a mailbox that is not wobbly. The "con" to this product is the price! The package says it replaces two bags of cement; however, two bags of cement is less than $10. The bottom line is that the product, although expensive, works. I am installing fence posts soon, but I doubt I'll be able to afford enough of this product for all of the posts. ... show more
Reviewed in the United States on July 11, 2023 by T Conner
    • Expands a LOT
Size: 1 Pack Style: Fence Post Mix
Super fun and easy to use! This was my first time so read and re-read the directions 100 times! Easy to understand and use and it was a lot of fun watching and listening to it grow! I think the hoke I dug wasn't necessarily deep enough so I ended up having to cut away the excess, but I will definitely be using again ... show more
Reviewed in the United States on July 30, 2023 by Courtney
    • Worked wonderfully
Size: 2 Pack Style: Deck Post Mix
Had a small project and these were so easy to use to anchor the 4 by 4 posts. Would definitely recommend
Reviewed in the United States on August 17, 2023 by C
    • Should be the standard for small jobs
Size: 1 Pack Style: Fence Post Mix
I had a poorly leaning light post in my yard that was visually annoying and opted for this. Save your back and your time and just buy it if you need it. I set a mailbox post with concrete and it was relatively more time consuming, heavier, required more stuff etc. when I used this stuff, It overflowed the hole I dug and I used a hand saw to cut it below the lawn and re-sod. The entire job took me 30 minutes and my 5 year old helped me and didn’t get bored. No heavy bags, no water. Just plain awesome! ... show more
Reviewed in the United States on July 6, 2023 by Jesse L.
    • This stuff is amazing
Size: 1 Pack Style: Deck Post Mix
I'll never mount anything with concrete again. Very easy to use and tough as iron. Unaffected by water and weather. Quickly mix according to instructions. But don't take too long. On one bag I took too long to mix and it started harding in the bag. Oops! I love this stuff. I have a floating dock that sits on tanks. The foam inside those tanks is getting water-logged. I'm going to use this stuff to fill the voids in those tanks. This product does not care about water. And it expands like crazy despite where you use it. ... show more
Reviewed in the United States on July 10, 2023 by Scott R.
    • Great for mailbox post!
Size: 1 Pack Style: Fence Post Mix
Was a bit sceptical about this but was not over keen to mix cement again for this post repair. The product instructions were clear and the no mess mix in bag was great. The foam certainly does expand within a few minutes, so much so I had to cut some of it away from outer post. Overall it has done a great job and although I would not use it on fence posts it works great on those rare one of a kind post repairs. I would use/buy again if needed. ... show more
Reviewed in the United States on May 30, 2023 by Mike R
    • Quick & easy to use
Size: 1 Pack Style: Fence Post Mix
This product made putting out mailbox post a breeze. Definitely, would use this product again.
Reviewed in the United States on August 12, 2023 by KHarkins
    • nice
Size: 1 Pack Style: Fence Post Mix
nice and easy to use and it expands alot
Reviewed in the United States on August 13, 2023 by barb

Can't find a product?

Find it on Amazon first, then paste the link below.