








🛠️ Seal smarter, save bigger—your gap-filling game changer!
The M-D Building Products Versatile Gray Foam Backer Rod Set offers a 1/2 inch thick, 20-foot long weather-resistant foam solution designed to fill and seal medium gaps in concrete, expansion joints, and cracks. Its easy-to-trim, flexible design ensures quick installation and a reliable base for caulking, enhancing airtightness and durability for both indoor and outdoor applications.










| ASIN | B000BQWOC0 |
| Best Sellers Rank | #3,855 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #37 in Weather Stripping |
| Brand | M-D Building Products |
| Color | Gray |
| Date First Available | October 12, 2005 |
| Global Trade Identification Number | 00043374714807 |
| Is Discontinued By Manufacturer | No |
| Item Form | Specialty |
| Item Weight | 0.32 ounces |
| Item model number | 71480 |
| Manufacturer | M-D Building Products |
| Material | Foam |
| Maximum Gap Fill | 0.5 Inches |
| Number of Items | 1 |
| Product Dimensions | 12 x 8.75 x 2 inches |
| Surface Recommendation | wall |
| UPC | 043374714807 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Waterproof |
T**D
Perfect Core Material for Ear Posts—Must-Have for Owners!
Though intended for sealing concrete gaps, this M-D Foam Backer Rod is an absolute game-changer for Doberman owners using DIY methods for ear posting. Perfect Density & Size: The 1/2 inch size and density are ideal for creating a stable, lightweight, and comfortable post core that is custom-cut to fit the ear canal perfectly. How to Use: The key to success is modification! It worked perfectly when wrapped in duct tape (or Zonas tape) to give it a firm, smooth exterior. This combination creates a far superior post than many specialized materials. Value: With 20 feet of material, this set offers incredible value, providing enough post material to last through the entire posting process for one or more puppies. If you are posting Doberman, Great Dane, or Boxer ears, forget the expensive custom kits—this backer rod, wrapped in tape, is the professional-level core you need. Highly, highly recommend!
G**D
Good magnetic screwdrivers for drill gun.
Very good magnetic screwdrivers for drill gun. Good quality metal screwdrivers. Works well.
S**Y
Insulate those pipes with this
Bargainprice for a product that works well!
F**7
Simple and easy. Does the job.
Filled in the big gaps between the walls and cabinet so I could seal it up with caulk and not use the whole tube. Still sealed and going strong after about a year.
D**T
Works!
Used in conjunction with mason sand for sealing cracks in my driveway. The end result looks and functions great!
J**S
Foam
Excellent. Just what I needed.
S**P
Works, but costs to much for what it is.
Works well and is flexible, but expensive for what it is.
A**H
Gap filler
Did its job excellently!
R**I
Cost is too much.. Similar products are available in lowest prices..
G**O
Excelente como apósitos para las orejas de mis doberman
N**I
I’ve been using very thin backer rod for posting my dog’s ears, and it’s been a fantastic solution! It’s lightweight, flexible, and provides just the right amount of support without causing any discomfort. It’s easy to cut to size and stays in place securely. Plus, it’s gentle on the ears and works perfectly with sports tape. Highly recommend for anyone looking for a reliable and comfortable ear-posting method!
D**H
All Doggy people should use this ,who post their puppy's ears.Excellent stuff.
R**G
Good quality, works well around a window mounted air conditional.
Trustpilot
4 days ago
1 week ago