#1 Home Improvement Retailer

Internet #202066515

Model #71480

Store SKU #462440

1/2 in. x 20 ft. Caulk Backer Rod

$398
  • Fills large gaps and openings
  • Provides a sound surface for caulking projects
  • For use in expansion joints in driveways and sidewalks
  • View More Details
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0 in stock
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Price:
$398

Product Overview

Before caulking, use the MD Building Products 1/2 in. x 20 ft. Caulk Backer Rod to help fill gaps and openings in pavement cracks, wall joints, foundations, sidewalks and driveways. The backer rod helps cushion and insulate and helps prevent 3-point bonding.
  • Fills gaps and openings in pavement cracks, wall joints, foundations, sidewalks and driveways
  • Non-absorbent, closed-cell polyethylene pre-caulking material
  • Twist multiple strands together to fill large cracks, gaps
  • Gray finish

Info & Guides

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Price
$398
$441
$667
$852
Ratings
(49)
(172)
(47)
(100)
MaterialOtherRubberOtherOther
Builders Hardware Product TypeFoam TapeFoam TapeWeatherstripWeatherstrip
Unspooled Length (ft.)201090.017
Product Depth (in.)21200.125.25
Product Width (in.)0.5 in.75 in.125 in.25
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Specifications

Dimensions

Product Depth (in.)
2
Product Height (in.)
0.5
Product Width (in.)
0.5 in
Unspooled Length (ft.)
20

Details

Builders Hardware Product Type
Foam Tape
Color Family
Grays
Color/Finish
Gray
Density
15.0
Hardware Color Family
Gray
Material
Other
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
No

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.8
    out of 49 reviews
  • 94% recommend this product
Filter by:
Showing 1-30 of 49 reviews
Just what I expected
I am not using this product for its intended use. I am a quilter and cut it up to replace the very costly Pinmoors used in quilt layering.
by
  • Verified Purchase
  • Recommended
12 people found this helpful
Used it to fill deep cracks that I was filling...
Used it to fill deep cracks that I was filling with self-leveling caulk. It was very versatile for the cracks I was filling and worked great.
by
    by
      We recently replaced our old Formica countertops with quartz that...
      We recently replaced our old Formica countertops with quartz that we purchased at Home Depot. The installers did a great job, but they let us know that the old cabinets were not level and that they would have to shim the countertop, as you cannot install a stone countertop on a non-level surface. That left a variable sized gap between the top of the cabinets and the bottom of the countertop. There was already some molding there, and I didn't want to remove it as that would be a much bigger project. So I used this backer rod to fill the space and then caulked it with DAP Dynaflex 230. I was very pleasantly surprised at how easy it was to do and how good it looks!
      by
        Exactly what I needed....
        Exactly what I needed.
        by
          by
            by
            • Verified Purchase
            by
            • Verified Purchase
            Good for filling the gap around the window frame before...
            Good for filling the gap around the window frame before caulking.
            by
            • Verified Purchase
            Rating provided by a verified purchaser...
            Rating provided by a verified purchaser
            by
            Response from MDBuildingProductsSupportJun 28, 2021
            Thank you for your review!
            • Verified Purchase
            Rating provided by a verified purchaser...
            Rating provided by a verified purchaser
            by
            • Verified Purchase
            Standard backer rod...it did the job....
            Standard backer rod...it did the job.
            by
            • Verified Purchase
            Does just whats needed...
            Does just whats needed
            by
            • Verified Purchase
            by
            • Verified Purchase
            by
            • Verified Purchase
            Rating provided by a verified purchaser...
            Rating provided by a verified purchaser
            by
            • Verified Purchase
            Works as supposed to....
            Works as supposed to.
            by
            • Verified Purchase
            Rating provided by a verified purchaser...
            Rating provided by a verified purchaser
            by
            • Verified Purchase
            Just could not figure out why this size is not stocked in the store. Works well as a backer for ...
            Just could not figure out why this size is not stocked in the store. Works well as a backer for expansion joints in brick veneer. Good quality product/
            by
            • Verified Purchase
            • Recommended
            Worked as advertised ...
            Worked as advertised ...
            by
            • Verified Purchase
            • Recommended
            Rating provided by a verified purchaser...
            Rating provided by a verified purchaser
            by
            • Verified Purchase
            1 person found this helpful
            Easy to use, but expensive for what it does. I switched to free foam packing sheets, from shippi...
            Easy to use, but expensive for what it does. I switched to free foam packing sheets, from shipping boxes, and got the same result. ,
            by
            • Verified Purchase
            Did the job well with this product. Large gap...
            Did the job well with this product. Large gap was filled enough to allow traditional caulking to then be used to finish the job.
            by
            • Verified Purchase
            Caulk backer rod was just what I needed worked great...
            Caulk backer rod was just what I needed worked great
            by
            • Verified Purchase
            Worked great on the area between the Brick and Wood...
            Worked great on the area between the Brick and Wood panels on my porch. After removing old failed caulk there were large gaps. These stayed in place beautifully for the new caulk. I bought 2 bags and had to set one aside, the kitten played with the material and left teeth marks. Material has to be leak free.
            by
            Response from MDBuildingProductsSupportSep 1, 2020
            Thank you for your review. We are glad to hear that you are enjoying your product!
            • Verified Purchase
            1 person found this helpful
            This is a must for crack filler especially if the...
            This is a must for crack filler especially if the space is very deep.
            by
            Response from MDBuildingProductsSupportSep 10, 2020
            Thank you for your review. We are glad to hear that you are enjoying your product!
            • Verified Purchase
            2 people found this helpful
            Rating provided by a verified purchaser...
            Rating provided by a verified purchaser
            by
            • Verified Purchase
            Great product!!! Did the job!...
            Great product!!! Did the job!
            by
            • Verified Purchase
            This stuff is great as a foundation for sealing caulking...
            This stuff is great as a foundation for sealing caulking filler leaks and providing natural expansion contraction underneath the hot Arizona sunshine. Using in combination with Concrete Crack Filler Caulking from Sika. Used it on my driveway slabs which are separating.
            by
            Response from MDBuildingProductsSupportSep 10, 2020
            Thank you for your review. We are glad to hear that you are enjoying your product!
            • Verified Purchase
            1 person found this helpful
            Rating provided by a verified purchaser...
            Rating provided by a verified purchaser
            by
            • Verified Purchase
            Showing 1-30 of 49 reviews