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Asphalt Crack Foam Backer Rod

COVID-19 Update: At this time, we are performing normal operations during the virus situation. We are closely monitoring supply chain activities that might cause fulfillment issues and to date, all of our suppliers are operating normally. If a product has a fulfillment problem, it will be indicated on the respective product page. Keep in mind that shipping situations may change without notice and cause delays that are out of our control. Feel free to contact us with any questions regarding fulfillment or shipping. +1(800) 689-2098


Ordering by Phone? Make sure you have the right product. Check the Product SKU List below.

Quick Overview: 
  • Foam tubing made for crack filling backer
  • Works better than sand
  • Lasts for several years
  • Reduces wasted crackfill material
Asphalt Crack Foam Backer Rod
List price: $64.99
Starting at
Free Shipping to lower US 48
Estimated Dates To Leave Warehouse: 

Apr. 07 - Apr. 09

In Stock
Have a question about this product? Ask it now!


Asphalt Crack Backer Rod is designed for the purpose of "Pre-Filling" cracks in asphalt that are deeper than 1/2" in depth.

This Foam Backer expands and seals the crack prior to the Crack Sealing process so that the new rubber material won't bottom out in the crack, this also saves you a great deal of material.

Some Asphalt Crack Filling professionals use fine sand for this purpose. Using sand works well in most applications and is usually easy to come by. On the downside, the problem you may encounter using sand is that when the crack expands (and it will) due to heat or cold temperature changes, the sand has a tendency to fall deeper into the crack or as the crack widens the sand will not support new sealer.

Asphalt Crack Backer Rod is installed so it "Pushes" against the side of the crack and as the crack widens, the Backer Rod widens with it because it is constructed from foam rubber.

Asphalt crack backer rod is very easy to install and as the pictures to the right show, simply push the Rod material down into the asphalt crack so you have approximately 1/2" of depth from the rod to the asphalt surface. Next, pour your new Asphalt Crack Filler on top. Both hot and cold applied sealants can be used with this backer rod, per ASTM-D-5249-95 making it a versatile product that can be applied between temperatures of -60°F to +500° F with an ignition point of 700ºF to 800ºF. It doesn't really matter which hot applied crack filler you want to use, you won't hurt the backer rod.

We stock quite a few different sizes of backer rod with the main image above showing a 100' X 5/8" roll

It is advisable to order some random diameters and lengths if you plan on repairing a large area such as a driveway or parking lot. If you order through the website and need different sizes, choose the size from the "Add to Cart" dropdown, then come back to this page and choose a different size and also add it to your cart.

If you are still unsure, ask your salesperson about Asphalt Crack Backer Rod installation and application information.

Product SKU List

These are the SKU numbers to give if you plan to buy over the phone. To see pricing changes (if any), click on the "drop down" arrow in the Add to Cart section above.



3/8" x 200'


3/8" x 3600'


5/8" x 100'


5/8" x 2000'


7/8" x 100'


7/8" x 1050'


1-1/8" x 75'


1-1/8" x 600'


1-1/2" x 40'


1-1/2" x 350'


2" x 25'


2" x 200'



  • Keeps new crackfill liquid from running down into the crack

  • Minimizes new crackfill waste

  • Expands and contracts with pavement cracks

  • Available is various diameters from 3/8" to 2"

  • Available in lengths from 100' to 350'


Technical Data Sheet:
Shipping Weight
Weight: 1 lb
Shipping Dimensions
Dimensions: 12 in × 12 in × 6 in