---
product_id: 8911358
title: "Thermwell F4WT 0 45' Woodtone Caulk Cord, 9.5-Ounce, 45-Foot Long, Ft"
brand: "frost king"
price: "$24.34"
currency: USD
in_stock: true
category: "Frost King"
url: https://www.desertcart.us/products/8911358-thermwell-f4wt-0-45-woodtone-caulk-cord-9-5-ounce
store_origin: US
region: United States of America
---

# Waterproof seal for all-weather protection 45 feet long for extensive coverage 9.5 oz caulk volume for durable sealing Thermwell F4WT 0 45' Woodtone Caulk Cord, 9.5-Ounce, 45-Foot Long, Ft

**Brand:** frost king
**Price:** $24.34
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal smart, live comfortable—weatherproof your world with ease!

## Quick Answers

- **What is this?** Thermwell F4WT 0 45' Woodtone Caulk Cord, 9.5-Ounce, 45-Foot Long, Ft by frost king
- **How much does it cost?** $24.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/8911358-thermwell-f4wt-0-45-woodtone-caulk-cord-9-5-ounce)

## Best For

- frost king enthusiasts

## Why This Product

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

## Key Features

- • **Extended Reach:** 45 feet of woodtone caulk cord covers large projects without constant reapplication.
- • **Proven Durability:** 150 PSI tensile strength ensures long-lasting protection against drafts, insects, and moisture.
- • **Effortless Application:** No caulking gun needed—just press with your fingertips for a perfect seal every time.
- • **Removable Yet Reliable:** Won't harden, allowing easy removal without compromising a tight, weatherproof seal.
- • **Versatile Compatibility:** Seals wood, plastic, metal, masonry, glass, and concrete—your all-in-one weatherproofing solution.

## Overview

Thermwell F4WT 45-foot Woodtone Caulk Cord offers a versatile, waterproof seal ideal for windows and various surfaces. With 9.5 ounces of caulk volume and 150 PSI tensile strength, it provides durable, easy-to-apply weatherproofing without the need for tools. Perfect for professionals and DIYers seeking reliable, removable sealing in a natural woodtone finish.

## Description

Product Description Mortite is the original name in Do-It-Yourself caulking, and its still famous for its quality and versatility. Sure, Mortite Weather-strip and Caulking Cord will seal windows effectively. But its also widely used as a gasketing material, sound deadener insect barrier, crack filler, and all around plugger-upper. 9.5 oz 45 feet Color: Woodtone For use with wood, plastic, metal, masonry, glass and concrete Forms weatherproof seal on porous and non-porous surfaces No caulking gun needed just press in place with your fingertips won't harden so it seals tight, yet can be easily removed. Manufacturer Contact Information 1-800-526-5265

## Features

- Item Weight: 0.8 lb
- Country of Origin: China
- Brand name: Thermwell
- Item Dimensions: 4.5"L x 4.5"W x 0.8"H

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000CSPRAS |
| Best Sellers Rank | #40,955 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #48 in Tape Caulk #248 in Industrial Sealants #20,185 in Hardware |
| Brand Name | Frost King |
| Color | Woodtone |
| Customer Reviews | 4.3 4.3 out of 5 stars (884) |
| Global Trade Identification Number | 00038092820947 |
| Included Components | Rough Electrical, extension-cords |
| Item Form | Strip |
| Item Type Name | 45' Woodtone Caulk Cord |
| Item Weight | 10.08 ounces |
| Liquid Volume | 9.5 Fluid Ounces |
| Manufacturer | Thermwell Products Co., Inc |
| Manufacturer Contact Information | 1-800-526-5265 |
| Material Type | Caulk |
| Model | F4WT |
| Number of Items | 1 |
| Part Number | F4WT |
| Surface Recommendation | Window |
| Tensile Strength | 150 Pounds Per Square Inch |
| UPC | 038092820947 |
| Unit Count | 45.0 Feet |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Frost King
- **Color:** Woodtone
- **Item Form:** Strip
- **Item Weight:** 10.08 ounces
- **Liquid Volume:** 9.5 Fluid Ounces

## Images

![Thermwell F4WT 0 45' Woodtone Caulk Cord, 9.5-Ounce, 45-Foot Long, Ft - Image 1](https://m.media-amazon.com/images/I/81Jvo17h2tL.jpg)

## Questions & Answers

**Q: Is it easy to remove when the weather warms up?**
A: This is the reason I love this stuff!  You can apply it in the winter and pull it off in the spring.  It is so cheap, but I have also saved thicker strips for re-use by storing in a baggy and then using them in the out of the way places like a cellar window where I am not so concerned about the look of it being patched together.  You can't beat this stuff for the price!

**Q: Can this be applied outside in cold temps (20F or below)?**
A: Yes, you can apply it if the temperatures are 20F or below.   Please note that you need to divide the sections so that you have only the width that you need.   Then you need to push it INTO THE SPACE OR INTO THE CRACK for it to stay in place.

**Q: 5.5 x 5.8 x 1.2 inches? These dimentions don't even come close to the photo or a 45 foot roll. anybody have a clue?**
A: Roll has 8 single strings of caulk which are rolled over and over again but are attached like licorice strings. It’s a lot and I have a 90 ft roll. The strings are a little thin an 1/8 of an inch in diameter x 90 ft long but they work.

**Q: I have sliding windows, and patio door.  Will the grey work good to seal the drafts on them?**
A: Absolutely!  I wasn't sure how good it was going to be so I ended up ordering more. I bought the wood - colored one as well to put on places where wood meets the sill, as I could feel air seeping in.  I can't say how great this stuff is.  I've got it on all my windows.  It's very easy if you need to adjust it and taking it off is a breeze. You can peel it off in whayever is needed....thin, medium or thick pieces.  It's inexpensive as well!  I needed to write this review for you because I believe when you're going to buy a product...it's nice to hear from someone who has used it if it's good or not. Again, great great product and price!!

## Frequently Bought Together

- Thermwell F4WT 0 45' Woodtone Caulk Cord, 9.5-Ounce, 45-Foot Long, Ft
- P14h Rope Caulk 6-1/4oz Gray

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-10*