---
product_id: 303440684
title: "Sashco - 30381 Pre-Caulking Filler Rope Backer Rod Roll, 100' Length x 3/8\" Width, Grey"
brand: "sashco"
price: "KSh9585"
currency: KES
in_stock: true
url: https://www.desertcart.co.ke/products/303440684-sashco-30381-pre-caulking-filler-rope-backer-rod-roll-100
store_origin: KE
region: Kenya
---

# 100' length for extensive coverage Lightweight at just 22.6g for easy handling 3/8" width ideal for precise gap filling Sashco - 30381 Pre-Caulking Filler Rope Backer Rod Roll, 100' Length x 3/8" Width, Grey

**Brand:** sashco
**Price:** KSh9585
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal like a pro, every time — don’t let gaps hold you back!

## Quick Answers

- **What is this?** Sashco - 30381 Pre-Caulking Filler Rope Backer Rod Roll, 100' Length x 3/8" Width, Grey by sashco
- **How much does it cost?** KSh9585 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/303440684-sashco-30381-pre-caulking-filler-rope-backer-rod-roll-100)

## Best For

- sashco enthusiasts

## Why This Product

- Trusted sashco brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Grey Hue:** Neutral color blends seamlessly with most surfaces for a clean finish
- • **Effortless Application:** Lightweight design reduces fatigue during prolonged use
- • **Extended Project Reach:** Generous 100-foot roll covers large areas without interruption
- • **Maximize Seal Efficiency:** Perfectly sized 3/8" width ensures optimal caulking depth and durability
- • **Trusted Brand Reliability:** Sashco’s industry-leading quality guarantees professional-grade results

## Overview

The Sashco 30381 Pre-Caulking Filler Rope Backer Rod Roll offers a 100-foot length and 3/8" width in a lightweight, easy-to-handle grey roll. Designed to optimize caulking performance by providing a consistent backing for sealants, it ensures durable, professional-grade sealing for a variety of construction and repair projects.

## Description

Sashco - 30381 Pre-Caulking Filler Rope Backer Rod Roll, 100' Length x 3/8" Width, Grey

## Features

- Item Category: Cargo Strap
- Item Trademark: Sashco
- manufacturer: Sashco

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Sashco |
| Brand | Sashco |
| Product Dimensions | 33.02 x 33.02 x 12.7 cm; 22.68 Grams |
| Item model number | 30381 |
| Manufacturer Part Number | 30381 |
| Item Weight | 22.6 g |

## Product Details

- **Colour:** Grey
- **Brand:** Sashco
- **Item weight:** 0.8 Ounces
- **Item form:** Strip
- **Surface recommendation:** Window

## Images

![Sashco - 30381 Pre-Caulking Filler Rope Backer Rod Roll, 100' Length x 3/8" Width, Grey - Image 1](https://m.media-amazon.com/images/I/716uciyptIL.jpg)

## Questions & Answers

**Q: Is this good for use in a bathroom?  I have a gap between my shower wall and the tub, and want to put this in, then caulk over it.**
A: That's a big gap for a shower but it should work and reduce the amount of caulk you use.

**Q: I have an open expansion joint in my driveway of 3/4"+.  Will the 1" backer rod compress into this slightly over 3/4 " joint for a tight seal?**
A: Joint Width	Closed Cell Rod Size
1/16 - 3/16 "	1/4 "
3/16 - 1/4 "	3/8 "
1/4 - 3/8 "	1/2 "
5/16 - 1/2 "	5/8 "
7/16 - 5/8 "	3/4 "
1/2 to 3/4 "	7/8 "
11/16" - 7/8 " 	1 "
13/16 - 1"	1-1/4 "

**Q: What are the benefits of closed cell versus regular backing rods?  I have a few cracks between the concrete porch and the foundation.**
A: Usually closed cell is used in exterior or moisture prone areas. They will provide more insulation and water proofing.

**Q: Can the caulk be painted/**
A: This isn't caulk, its a filler that can fit in large gaps then caulked over. With that in mind, if you use paintable caulk along with the filler... good to go!

---

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**Shop now:** [https://www.desertcart.co.ke/products/303440684-sashco-30381-pre-caulking-filler-rope-backer-rod-roll-100](https://www.desertcart.co.ke/products/303440684-sashco-30381-pre-caulking-filler-rope-backer-rod-roll-100)

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-13*