0043374714807

MD Building Products

Model # 71480

Internet # 202066515

Store SKU # 462440

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

$3.48 /each
  • Fills large gaps and openings
  • Provides a sound surface for caulking projects
  • For use in expansion joints in driveways and sidewalks

FREQUENTLY BOUGHT TOGETHER

PRODUCT OVERVIEW

Model # 71480

Internet # 202066515

Store SKU # 462440

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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SPECIFICATIONS

Dimensions
Product Depth (in.) 
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 

MORE PRODUCTS WITH THESE FEATURES

Price: $0 - $10
Brand: MD Building Products
Review Rating: 4 & Up
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4 Questions4 Answers

Customer Questions & Answers

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

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This question is from 1/2 in. x 20 ft. Caulk Backer Rod
 
1 answer

is this mold proof for use in bathroom tub/shower area?

This question is from 1/2 in. x 20 ft. Caulk Backer Rod
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April 14, 2016
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April 15, 2016
Answer: 
The product is not mold proof.
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This question is from 1/2 in. x 20 ft. Caulk Backer Rod
 
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Which diameter to use?

This question is from 1/2 in. x 20 ft. Caulk Backer Rod
Asked by
Portland, ME
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March 15, 2016
If the gap I am filling is right around 1/2", would it be best to use the 1/2" size or go to 5/8" to be sure gap is filled completely. I assume the stuff is fairly compressible but not sure.
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Answer (1)

March 16, 2016
Answer: 
We recommend you use the 5/8" version. It will compress slightly for you to insert into your gap, and help ensure a nice, tight seal. Thank you for your interest in our product-- M-D Building Products
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This question is from 1/2 in. x 20 ft. Caulk Backer Rod
 
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Can this be used on front steps (blue stone) in all temperatures (upstate NY), exposed to snow and rain?

This question is from 1/2 in. x 20 ft. Caulk Backer Rod
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Columbia County
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January 8, 2016
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Answer (1)

January 12, 2016
Answer: 
Thank you for your inquiry. Item # 71480 can be used in all temps and exposed to elements outdoors.
Thank you for your interest in our products.
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This question is from 1/2 in. x 20 ft. Caulk Backer Rod
 
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IS THIS A CLOSED CELL PRODUCT

This question is from 1/2 in. x 20 ft. Caulk Backer Rod
Asked by
ST PETERSBURG FL
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December 22, 2015
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December 29, 2015
Answer: 
This is a non-absorbent, closed-cell polyethylene, pre-caulking material. Thank you for your interest in our product. M-D Building Products
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  • 2016-04-21 T21:28:37.189-05:00
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CUSTOMER REVIEWS

Rated 5.0 out of 5 by 6 reviewers.
Rated 5.0 out of 5.0 by 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. February 10, 2016
Rated 5.0 out of 5.0 by Great for stefens I bought this fbr for homade nerf darts works great!!! February 20, 2016
Rated 5.0 out of 5.0 by Great Concept for Caulk Backer The Caulk Backer rod filled the gaps and minimized the need for gobs of caulk. This product wedged into the crack very well and I applied the caulk over top of this product. The results were superb. September 8, 2015
Rated 5.0 out of 5.0 by Good buy I used this product to fill in gaps around window siding before re-caulking and it worked well. I just wish it was stocked at the store. December 17, 2014
Rated 5.0 out of 5.0 by Easy to use, doesn't tear Had to use to fill large gap between driveway and foundation. In some places, had to twist larger sizes of backer rod to fill gap so the sealant will adhere only to the sides and not the bottom of the gap. This keeps it 'floating' as the gap expands and contracts. This backer rod is easy to twist and keep twisted, returns to its shape when untwisted, is easy to knot or fold, and to compress into appropriate sizes and shapes to fill all sorts of odd sizes of gaps. September 28, 2012
Rated 5.0 out of 5.0 by exactly what i needed May 1, 2011
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