---
product_id: 222780224
title: "3M Indoor Window Insulation, Insulator Kit for 5 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2141W-6)"
brand: "3m"
price: "KD 44.57"
currency: KWD
in_stock: true
reviews_count: 7
category: "3 M"
url: https://www.desertcart.com.kw/products/222780224-3m-indoor-window-insulation-insulator-kit-for-5-windows-3ft
store_origin: KW
region: Kuwait
---

# Increases window R-value by 90% Blocks cold drafts effectively Easy heat-shrink installation 3M Indoor Window Insulation, Insulator Kit for 5 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2141W-6)

**Brand:** 3m
**Price:** KD 44.57
**Availability:** ✅ In Stock

## Summary

> ❄️ Stay warm, save smart — winter-proof your windows like a pro!

## Quick Answers

- **What is this?** 3M Indoor Window Insulation, Insulator Kit for 5 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2141W-6) by 3m
- **How much does it cost?** KD 44.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/222780224-3m-indoor-window-insulation-insulator-kit-for-5-windows-3ft)

## Best For

- 3m enthusiasts

## Why This Product

- Trusted 3m brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fits Five Standard Windows:** Complete kit covers five 3' x 5' windows for whole-room comfort
- • **Energy Savings You Can Feel:** Boost your window insulation and slash heating bills with 90% R-value increase
- • **Effortless, Professional Finish:** Wrinkle-free, crystal-clear film applies smoothly with durable Scotch mounting tape
- • **Made in the USA, Trusted Quality:** Premium materials and reliable performance from a household name
- • **Seal in the Warmth, Shut Out the Chill:** Advanced heat-shrink film locks in cozy air all winter long

## Overview

3M Indoor Window Insulation Kit includes heat-shrink film and Scotch mounting tape designed to insulate five standard 3' x 5' windows. It increases the R-value of single-pane windows by 90%, reducing cold drafts and lowering heating costs. The clear, wrinkle-free film installs easily and stays secure all season, delivering professional-grade energy efficiency made in the USA.

## Description

Available in a variety of indoor and outdoor window sizes. 3M Window Insulator Kits keep cold drafts out and warm air in through heat shrink window film and Scotch Window Film Mounting Tape. 3M window kits have the clearest film and stay up all season long with Scotch tape technology. Scotch double sided tape holds firmly between films and surfaces.

Review: Very Thin - The film is very thin and can easily get pierced by sharp object if not careful. Has to be installed at least an inch away from glass pane to be effective.
Review: Good - Ease of use

## Features

- Made in USA
- Included: (1) 5.16' x 17.5' film sheet, (2) rolls of tape, 1/2" x 27.7 yd
- Insulates five 3' x 5' windows
- Lowers heating costs and saves energy,Applies easily, shrinking tight, wrinkle-free and clear on glass,Increasing the R-value of single pane window by 90%

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00002NCJI |
| Best Sellers Rank | #427,668 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #674 in Window Stickers |
| Department | Unisex-Adult |
| Generic Name | weatherproofing-window-insulation-kits |
| Global Trade Identification Number | 00051131500242, 05113150024217 |
| Included Components | 1 Folded Film 2 Rolls of Tape 1 Instruction Sheet |
| Item Dimensions LxWxH | 152.4 x 91.4 x 0.3 Centimeters |
| Item Weight | 295 g |
| Item model number | 2141W-6 |
| Manufacturer | 3M |
| Net Quantity | 1.0 Count |
| Product Dimensions | 152.4 x 91.44 x 0.25 cm; 294.84 g |
| UPC | 051131500242 |

## Product Details

- **Brand:** 3M
- **Item Thickness:** 0.75 Mils
- **Material:** Plastic
- **Product Dimensions:** 6.4L x 1.58W Meters
- **Recommended Uses For Product:** Insulating indoor windows to save energy, reduce heating costs, and prevent frost buildup

## Images

![3M Indoor Window Insulation, Insulator Kit for 5 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2141W-6) - Image 1](https://m.media-amazon.com/images/I/310KG7TZf1L.jpg)
![3M Indoor Window Insulation, Insulator Kit for 5 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2141W-6) - Image 2](https://m.media-amazon.com/images/I/41KAfT+ZQ5L.jpg)
![3M Indoor Window Insulation, Insulator Kit for 5 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2141W-6) - Image 3](https://m.media-amazon.com/images/I/41MGqLlqMvL.jpg)
![3M Indoor Window Insulation, Insulator Kit for 5 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2141W-6) - Image 4](https://m.media-amazon.com/images/I/41ZiZLX0QTL.jpg)
![3M Indoor Window Insulation, Insulator Kit for 5 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2141W-6) - Image 5](https://m.media-amazon.com/images/I/41k6-rXN7ZL.jpg)

## Questions & Answers

**Q: Will this work for insulating from the heat of a hot climate too?**
A: I would assume so, though we live in Maine near the coast where it can be in the teens and 20s sometimesduring the weather; I assume it would work since 3M is an excellent product - the hardware versionsdon't seem to work as well. You'll need the 3M tape for this as well.

**Q: Has anyone had success applying this to a window without trim? Our 50s track house just has drywall-cased windows.**
A: I want an answer to this too! I also have the drywall-cased windows from the 50s. Thanks!!

**Q: I am from the South, so my big question is, does it insulates from heat so well as it does from cold? 
Will it last if you leave it permanently, or you need to replace it every year?
Third question would be, can you glue it against dry wall?
Thanks**
A: Old query, but for newbies: this would work as well to keep the A/C air away from the window pane, thus it would insulate heat as well as cold. It's just physics. It forms a dead air space just like a storm window (if you know what those are up north). You could leave it on, but probably would not last permanently. I don't see how you could use glue; it is intended to be mounted only with the double stick tape provided in the box. Browse other replies who have said that they applied it directly to dry wall (sheet rock).
BTW another response said:  “Yes but you can run into a moisture issue. We tried it and it it worked well except that the A/C created condensation on the plastic which eventually pooled up between the window and the plastic creating mold”

**Q: How does this hold up compared to frost king?**
A: This holds up much better then frost king... I have never had frost king last a whole season on my windows but the 3M lasts no matter how long the cold season has lasted.  I will never go back to using Frost King again.

## Customer Reviews

### ⭐⭐⭐ Very Thin
*by S***L on 24 October 2023*

The film is very thin and can easily get pierced by sharp object if not careful. Has to be installed at least an inch away from glass pane to be effective.

### ⭐⭐⭐ Good
*by A***R on 7 November 2023*

Ease of use

### ⭐ Review
*by S***E on 24 June 2019*

One out of 2 packages was completely unusable because the plastic was fused together and although we've used these products for years without any problems, these ones keep coming off. The sticky tape condition was compromised. Have had to order more of the window kits (and pay significant shipping) but hope they arrive in better shape or next time we'll try a different product or order from elsewhere.

## Frequently Bought Together

- 3M Indoor Window Insulation, Insulator Kit for 5 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2141W-6)
- XFasten Transparent Window Weather Sealing Tape, 2-Inch x 30 Yards (50.8mm x 27.43m), Clear Window Draft Isolation Sealing Film Tape, No Residue
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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-21*