Model # 71480

Internet #202066515

Store SKU #462440

M-D Building Products 1/2 in. x 20 ft. Caulk Backer Rod
0043374714807

M-D Building Products

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

  • Fills large gaps and openings
  • Provides a sound surface for caulking projects
  • For use in expansion joints in driveways and sidewalks
$ 3 48 /each
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Frequently Bought Together

Frequently Bought Together

Product Overview

  • Fills large gaps and openings
  • Provides a sound surface for caulking projects
  • For use in expansion joints in driveways and sidewalks
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

Product Overview

  • Fills large gaps and openings
  • Provides a sound surface for caulking projects
  • For use in expansion joints in driveways and sidewalks
Model #: 71480
Sku #: 462440
Internet #: 202066515

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
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Name 1/2 in. x 17 ft. Low Density Foam Tape 1/2 in. x 20 ft. Caulk Backer Rod 5/8 in. x 20 ft. Gray Caulk Backer Rod for Gaps and Joints 1-1/4 in. x 30 ft. Camper Seal Foam Tape
Brand M-D Building Products M-D Building Products M-D Building Products M-D Building Products
Ratings (8) (13) (14) (13)
View Product View Product View Product View Product

Specifications

Dimensions

Product Depth (in.)
2
Product Height (in.)
0.5
Product Width (in.)
0.5 in
Unspooled Length (ft.)
20.0

Details

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

Warranty / Certifications

Manufacturer Warranty
No

Specifications

Dimensions

Product Depth (in.)
2
Product Height (in.)
0.5
Product Width (in.)
0.5 in
Unspooled Length (ft.)
20.0

Details

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

Warranty / Certifications

Manufacturer Warranty
No

Questions & Answers

Is it water proof

I want to use it between deck planks to keep water from coming through.
Asked by: Matt
Where will the moisture go, just sit on top and cause rot and mold as well as freezing problems. Use a under deck drain system. The product is closed cell so it will only retain a minute amount of fluid.
Answered by: Crazymark
Date published: 2018-10-30

Can this be trimmed to fit the space?

I have the 1/2 inch backer rod and it fills the gap but is flush with the trim rather then sitting under it.
Asked by: CC
Yes...
Answered by: Crazymark
Date published: 2018-10-30

Can this be used with grout?

Can this be used with grout?
Asked by: bb
Why? Is tile that thick?
Answered by: Crazymark
Date published: 2018-10-30

Does Backer Rod have any acoustical value?

Does Backer Rod have any acoustical value?
Asked by: StoneRootsInc
Minimal.
Answered by: Crazymark
Date published: 2018-10-30
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Customer Reviews

1/2 in. x 20 ft. Caulk Backer Rod is rated 4.8 out of 5 by 13.
Rated 4 out of 5 by from I had never used this product before. I was expecting the foam to be denser, and that the rod wou... I had never used this product before. I was expecting the foam to be denser, and that the rod would have a tacky exterior to better hold its shape and help it adhere to the crevice being filled. However, it did do the job it was intended to do.
Date published: 2018-07-03
Rated 5 out of 5 by from Wish I would have know About this sooner So my husband put in our new baseboard and let’s just say you can tell it was a beginner who did it because there’s gaps everywhere! So I researched and found someone talking about this product. At first I got it and thought this is too big to use in the gaps I have, but then I thought I’ll just cut it to the shape I need, used a pen to stuff it in then filled with caulk over, worked great
Date published: 2018-04-24
Rated 3 out of 5 by from It worked as intended.... It worked as intended.
Date published: 2018-04-10
Rated 5 out of 5 by from As described As described
Date published: 2018-03-13
Rated 5 out of 5 by from Great worked perfectly.... Great worked perfectly.
Date published: 2018-02-14
Rated 5 out of 5 by from Used it to seal corner and siding mating edge , seals yet allows flex in vinyl siding. Used it to seal corner and siding mating edge , seals yet allows flex in vinyl siding.
Date published: 2017-11-21
Rated 5 out of 5 by from Great Stuff Used backer rod on a new door I was putting. Was easy to use and worked great on filling in between the frame and wall. Save much on caulk too!
Date published: 2016-08-30
Rated 5 out of 5 by from Great for stefens I bought this fbr for homade nerf darts works great!!!
Date published: 2016-02-21
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