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Fire Pit Adhesive - Carton - 28 oz Tubes



Looking for an adhesive to use on the stone, brick or concrete blocks around your fire pit? SRW’s Fire Pit Adhesive (Rapid-Set Polyurethane)  is designed for high temperatures and will provide permanent long lasting strength even when submitted to high temperatures. With the fastest setup time on the market, this adhesive is versatile and can be used on a wide range of different materials and can be applied to both dry and damp surfaces.

This product is VOC compliant.


Contains a carton of 12 tubes of 28 oz each.

Product Info

  • Model: APU 28
  • Brand: SRW
  • Size: Carton of 12 tubes of 28 oz each.

  • Safety Data Sheet: Download PDF
  • Installation Guidelines: Download PDF
  • Free Shipping
  • Need a written quote? Request Online
  • Questions?  Call (800) 604-5537


  • All items ship for free (standard ground, see map)
  • Call: (800) 604-5537 for pricing and shipping questions.
  • This material ships from either California, Minnesota, New Jersey or Georgia. Orders typically ship same day (if placed before 12 PM EST)

    Note: The day that the order ships does not count as a transit day. We are unable to expedite fabric shipments faster than what is displayed on the map below.

Product Benefits:

  • Fastest set-up time on the market
  • Designed for construction and landscape projects
  • Suitable for dry or damp surfaces
  • High temperature compatible
  • Interior/exterior applications
  • Premium, long-lasting strength
  • 12 month shelf life

Product Applications:

  • Retaining walls
  • Pavers
  • Concrete
  • Pool Copings
  • Foam/Vinyl/PVC
  • Bricks
  • Firepits
  • Metals
  • Wood
  • Natural stone

How You Can Build A Fire Pit In Your Backyard

There are few things in your yard that serve as great entertainment for your family and friends like a wood-burning fire pit. Building a fire pit is actually a DIY project that can be set up to work with your yard's dimensions. This article will show you how to build a fire pit in your backyard quickly and easily using concrete blocks or pavers.

Fire pit on gravel

Gravel Area for Fire Pit

Choose Where You Want The Fire Pit

First and foremost, whether you will build it from scratch using brick, stone or if you prefer, purchase a fire pit kit at your local home improvement facility, you need the best location. The location should be a safe distance from any structures or anywhere around low-hanging trees. Unless you have all the materials you will need, purchasing a fire pit kit could be the cheaper way to go.

Other steps you must follow before building the fire pit include getting in touch with your local building code representative and if you have a homeowners association, contact them as well. You will probably have to provide information about your fire pit for your homeowner's insurance policy. Contacting your insurance provider is important to find out if building a fire pit will affect your insurance coverage.

Know The Style & Shape You Want For Your Fire Pit

Knowing the style and shape of your fire pit will decide the kind of blocks you will have to use. Most fire pits are 3 to 4 ft across. If you want a pit ring, you need trapezoidal blocks that are narrower on one side. These blocks will fit snugly together forming a circle, leaving no gaps behind.

A square fire pit is built with rectangular blocks and is available in many patterns using different shapes and sizes of blocks.

Mark & Prepare The Fire Pit's Location

When you outline the fire pit, you will have your work area laid out. If you are creating a circular fire pit, drive a stake in the center of your work area. Use the marking paint tied to a string and create a circle going around the stake. The diameter of the circle should only be a little bit larger than the outside dimensions of the fire pit ring you will be creating.

For a rectangular or square fire pit, temporarily lay out the first layer of concrete blocks, for your design on the ground and check the layout for the square. Use a shovel to outline the perimeter then remove the blocks. From the inside of the perimeter that you marked, remove the sod and dirt to a depth of approximately 7 inches. As you work, keep the area level. Pack the dirt firmly all the way around with a hand tamper. If your project is creating a stone fire pit on your patio, cement the first layer of blocks into the patio to prevent moving.

Landscaped Area with Fire Pit

Fire Pit in Landscaped Area

Create The Fire Pit's Gravel Base

The bottom area of your fire pit must have an inflammable surface to ensure safety. Place gravel on top of the compacted dirt to form the base of the fire pit. To complete the base, pour a good amount of crushed gravel paver base into the hole. The base should then be 5 inches thick.

Thoroughly water down the gravel using a garden hose then take a hand tamper to ensure the layer is hard and will be a few inches below the surface. You should check the base a few times to make sure it's level, if it's not, make any needed modifications.

Lay Out The Fire Pit

Lay out the first layer of blocks on top of the gravel base. Make sure the sides of the blocks are touching. Place the blocks one at a time around the perimeter of the hole. Push the blocks together for a snug fit then take a level to make sure all the blocks are the same height. If you need to adjust the heights of any blocks, add leveling sand under the lower blocks or tap down higher blocks using a rubber mallet. When the first row is done, you should check the layer using a long level to ensure the layer is even. *Lay out the second level of blocks making sure you stagger the joints between the rows. *This is on a temporary basis.

Fire in Fire Pit

Fire Pit with Active Fire

It's Time To Test-Fit The Fire Pit Bowl

The bowls and insert rings are available in different standard sizes so you must make sure you chose the right size for your fire pit.

• Test-fit the fire pit bowl after you have placed the second row ensuring it sits completely on the rim.
• Remove the bowl
• Alter the positions of the blocks if you have to.

Apply The Construction Adhesive To The Blocks

Applying construction adhesive between the layers of blocks will stabilize the concrete block pavers as you work on the pit walls. Now you can remove the temporary second row of blocks. Apply the adhesive beads to the bottom layer to bind everything. Refit the second row of blocks and then continue using the same steps for the third row of blocks.

In general, a fire pit has 3 or 4 rows of blocks After laying each row be sure to test-fit each one before applying the adhesive. As the bowl sits on top, you can easily remove it for cleaning. Read the label on the construction adhesive container for correct curing instructions. It can take from 2 to 7 days for the adhesive to dry and fully cure so it can withstand the heat from your fire pit.

Building a fire pit is a great choice. It's an enjoyable place for friends and family to come together. When you are ready to start your fire pit project, you can rent a soil compactor and a tamper. You can get both from your local hardware store. They will typically deliver it to your location when you order them online.