M-D Building Products - Versatile Gray Foam Backer Rod - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling, 3/8 by 20 Feet, (Pack of 2) (71464)
Product ID: 270390717
Secure Transaction
📏20 feet length per rod for extensive coverage
🛠️Closed-cell polyethylene for durable, non-absorbent sealing
Frequently Bought Together
Description
🛠️ Seal it like a pro—don’t let gaps steal your comfort!
- EXTENDED REACH - Each 20-foot rod covers large projects without constant replacements—work smarter, not harder.
- EASY CUSTOMIZATION - Trim to size effortlessly with scissors or twist multiple rods for oversized gaps—flexibility meets efficiency.
- PRECISION GAP FILLER - Perfect 3/8-inch thickness seals expansion joints and cracks with professional accuracy.
- VERSATILE APPLICATION - Ideal for concrete, driveways, sidewalks, and more—your go-to solution for draft prevention and crack repair.
- DURABLE NON ABSORBENT - Closed-cell polyethylene resists moisture and compression, ensuring long-lasting caulk adhesion.
The M-D Building Products Versatile Gray Foam Backer Rod is a 3/8-inch by 20-foot closed-cell polyethylene foam designed to provide a reliable backing for caulking in concrete gaps, expansion joints, and cracks. Manufactured in the USA, it offers durable, non-absorbent support that enhances sealant performance, prevents drafts, and is easily trimmed or combined for larger gaps, making it an essential tool for professional-grade sealing projects.
Specifications
| Manufacturer | M-D Building Products |
| Part number | 71464 |
| Item Weight | 17 g |
| Product Dimensions | 35.56 x 20.32 x 5.08 cm; 17.01 g |
| Item model number | 71464 |
| Size | 20 Ft. |
| Color | Black |
| Style | Backer Rod |
| Material | Rubber |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Measurement System | US |
| Specification met | Non-absorbent, closed-cell polyethylene pre-caulking material |
| Included components | MD Building - 71464 - 2pk |
| Batteries Included? | No |
| Batteries Required? | No |
Have a Question? See What Others Asked
how many feet come in a 3 pk?
no 1/4" one? either 20 or 50ft?
can the backer rod be sliced for smaller openings?
Can his be used for exterior windows before caulking?
Common Questions
Trustpilot
TrustScore 4.5 | 7,300+ reviews
Customer service was outstanding when I had questions about the product.
2 days ago
Great experience from order to delivery. Highly recommended!
1 week ago
Shop Global, Save with Desertcart
Value for Money
Competitive prices on a vast range of products
Shop Globally
Serving over 300 million shoppers across more than 200 countries
Enhanced Protection
Trusted payment options loved by worldwide shoppers
Customer Assurance
Trusted payment options loved by worldwide shoppers.
Desertcart App
Shop on the go, anytime, anywhere.
