---
product_id: 188167735
title: "SmartSHIELD-3mm Foil/Foil"
brand: "insulation marketplace"
price: "HK$3508"
currency: HKD
in_stock: null
reviews_count: 11
category: "Insulation Marketplace"
url: https://www.desertcart.hk/products/188167735-smartshield-3mm-foil-foil
store_origin: HK
region: Hong Kong
---

# Vapor barrier prevents condensation Reflects 95% radiant energy Easy to cut & install SmartSHIELD-3mm Foil/Foil

**Brand:** insulation marketplace
**Price:** HK$3508
**Availability:** ❌ Out of Stock

## Summary

> 🏡 Stay warm, save green, and beat the heat with SmartSHIELD!

## Quick Answers

- **What is this?** SmartSHIELD-3mm Foil/Foil by insulation marketplace
- **How much does it cost?** HK$3508 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/188167735-smartshield-3mm-foil-foil)

## Best For

- insulation marketplace enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Comfortable:** Non-toxic, hypoallergenic material that won’t irritate skin or eyes.
- • **Premium Quality Build:** Closed-cell polyethylene foam sandwiched between dual reflective foils for superior insulation.
- • **All-Weather Protection:** Vapor barrier blocks moisture and condensation, ensuring durability.
- • **Effortless Installation:** Lightweight 3mm foam core with engineered foil—cut, fit, and secure in minutes.
- • **Maximize Energy Savings:** Reflects 95% of radiant heat to slash your utility bills.

## Overview

SmartSHIELD-3mm Foil/Foil insulation roll features a 3mm closed-cell polyethylene foam core sandwiched between engineered reflective foils on both sides. It reflects 95% of radiant energy, acts as a vapor barrier to prevent moisture buildup, and is lightweight and easy to install. Ideal for reducing heat transfer year-round, it offers an R-value of 15 and is non-toxic and hypoallergenic, making it a premium choice for efficient, durable home insulation.

## Description

INSULATION MARKETPLACE SmartSHIELD -3mm 48 inchx100Ft ReflectiveINSULATION roll, Foam Core Radiant Barrier, ThermalINSULATION Shield - Engineered Foil - desertcart.com

Review: Great for cat shelters! - Worked great for my feral cat's winter shelters. It kept them warm and toasty. It was easy to cut and install in my shelters. It's pretty thick and stay in very well. I would purchase again.
Review: Excellent performance and easy to install—raised basement area by 15 degrees F! - I used this to insulate a small area of my basement for indoor seed starting. Previously that area was very cold, and had effectively no insulation between it and an outdoor crawl space (aside from a few semi-loose plywood boards), and the area was also on top of a big poured concrete pier/slab thing. So basically, the air was around 50 F in the winter and the surfaces were cold. Also, drafts (outside air) came in from the crawlspace through slits between boards. This is despite all the seed starting gear (lights, heating mats, etc.). In previous years I have even put a small space heater down there in an attempt to try to get the soil up to 60 F+, which is where I want it to start things like sunflowers. So I bought a 50-foot roll of this stuff and cut three 14-foot strips of it. I tacked one long strip along the area that meets the crawlspace. (Used a staple gun—not sure if that's the right choice, but it's what I had.) I also laid a long piece on the concrete surface (no attachment, just laid it down and put plant mats directly on top of it), then added a third piece that ran between that surface bit and up to the wall/crawlspace interface. I stapled the that third piece onto a wooden beam, and used packing tape to attach the lower pieces where drafts were trying to blow through. This allowed a mostly leak-free insulation shield about 6 feet "high" by around 14-ish feet wide. I put back the same temperature monitor that had read 50, and within a few minutes it was up to 55. Hmm. That's good. After I reinstalled all the seed starting stuff (a few low-power heating mats, four low-power LED lights), the temperature went up to 65 degrees and stayed stable (!!). I have seen a few dips overnight down to 62, but in general this area that was consistently 50 degrees F (WITH lights and heating pads) is now mostly 65 and up (at one point it reached 70, which is actually pushing it as far as seed starting is concerned). The space heater is gone—it would be way too hot at this point, and in fact I'm considering adding a fan or something, triggered in case the temp gets close to 70, just to circulate some of the heat away. For the price, I'm extremely impressed. This stuff definitely created a thermal barrier between the super-cold cement block that the seedlings sat on—that block is such a huge mass that there's no way a heating pad is going to ever warm it up (remember, we're in a basement and this is essentially a secondary foundation wall that just happens to be super wide). The insulation also created at least a basic vapor barrier on the interface w/crawlspace, blocking a lot of drafts and little gaps. The fact that it's so thin and easy to work meant I could also tack it up around edges and corners, which is where the drafts were the worst. I know this isn't really designed to be the only insulation in this use case (I might have been better off installing batts of fiberglass, and would certainly do so if I were trying to treat an entire basement), but it's cheaper, MUCH smaller, MUCH easier to work with, AND you can wipe it down (within reason—it IS possible to rip the shiny surface). If you're looking for something very thin with a good radiant shielding effect, this is it. The only downside I can think of is that the material is thin. While this is usually a positive, you do need to be careful with it, as it's possible to rip the foil layer and have it start peeling off. That's different from a lot of other kinds of insulation (fiberglass batts, foam board, spray...) where the material itself is real tough and workable. This is thin and precise—install accordingly.

## Features

- EXTREMELY EFFECTIVE - reflects 95% of radiant energy, perfect RADIANT BARRIER.
- VAPOR BARRIER - prevent condensation, unaffected by humidity and moisture.
- SAVE MONEY- effectively low the amount of heat transferred into the home in the summer an out of the home in the winter. Great reflective material that can stop radiant heat transfer. Save big on your utility bill.
- SUPREME QUALITY - 3mm closed cell polyethylene FOAM (not a bubbles) sandwiched between highly reflective Engineered Foil on both sides. Easy to install, easy to cut, strong but lightweight.
- NON TOXIC - will not irritate skin, eye or throat. Non allergic.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0843JRFVR |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #7,744 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #27 in Weatherproofing Window Insulation Kits |
| Coverage | 48 square feet |
| Customer Reviews | 4.6 4.6 out of 5 stars (7,514) |
| Date First Available | June 16, 2015 |
| Item Package Quantity | 1 |
| Item Weight | 8.7 pounds |
| Item model number | SmartSHIELD -3mm - Polyester |
| Part Number | 270 |
| Product Dimensions | 1200 x 48 x 0.04 inches |
| R value | 15.00 |
| Size | 48"x100ft |
| UPC | 686091709338 |

## Product Details

- **Brand:** INSULATION MARKETPLACE
- **Item Thickness:** 3 Millimeters
- **Manufacturer:** Insulation MarketPlace LLC
- **Material:** Polyethylene (PE)
- **Product Dimensions:** 1200"L x 48"W

## Images

![SmartSHIELD-3mm Foil/Foil - Image 1](https://m.media-amazon.com/images/I/91yTfRHtBsL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: This might be weird but can u sew it and it hold the stitching well?**
A: I sewed mine to curtains for my skoolie and it worked great the thread wanted to slip through foam so I had to make a few extra knots on end but overall worked well

**Q: how thick is it?**
A: Foam is 3mm thick.

**Q: How much does it weigh compared to traditional reflectix?**
A: It is probably half the weight.  It is very effective, very light, thinner than the bubble types, and can be used in many ways.  I use it as windshield covers, either inside or outside, for our car and I even use it for a very effective insole and canting shim for my ski and snowboarding boots.

**Q: Would this insulation work on the bottom inside of a greenhouse window?**
A: It reflects the sun away , it's very very thin . If that is what you are trying to do is reflects the sun out then it may work

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for cat shelters!
*by S***B on February 9, 2026*

Worked great for my feral cat's winter shelters. It kept them warm and toasty. It was easy to cut and install in my shelters. It's pretty thick and stay in very well. I would purchase again.

### ⭐⭐⭐⭐⭐ Excellent performance and easy to install—raised basement area by 15 degrees F!
*by C***S on February 6, 2021*

I used this to insulate a small area of my basement for indoor seed starting. Previously that area was very cold, and had effectively no insulation between it and an outdoor crawl space (aside from a few semi-loose plywood boards), and the area was also on top of a big poured concrete pier/slab thing. So basically, the air was around 50 F in the winter and the surfaces were cold. Also, drafts (outside air) came in from the crawlspace through slits between boards. This is despite all the seed starting gear (lights, heating mats, etc.). In previous years I have even put a small space heater down there in an attempt to try to get the soil up to 60 F+, which is where I want it to start things like sunflowers. So I bought a 50-foot roll of this stuff and cut three 14-foot strips of it. I tacked one long strip along the area that meets the crawlspace. (Used a staple gun—not sure if that's the right choice, but it's what I had.) I also laid a long piece on the concrete surface (no attachment, just laid it down and put plant mats directly on top of it), then added a third piece that ran between that surface bit and up to the wall/crawlspace interface. I stapled the that third piece onto a wooden beam, and used packing tape to attach the lower pieces where drafts were trying to blow through. This allowed a mostly leak-free insulation shield about 6 feet "high" by around 14-ish feet wide. I put back the same temperature monitor that had read 50, and within a few minutes it was up to 55. Hmm. That's good. After I reinstalled all the seed starting stuff (a few low-power heating mats, four low-power LED lights), the temperature went up to 65 degrees and stayed stable (!!). I have seen a few dips overnight down to 62, but in general this area that was consistently 50 degrees F (WITH lights and heating pads) is now mostly 65 and up (at one point it reached 70, which is actually pushing it as far as seed starting is concerned). The space heater is gone—it would be way too hot at this point, and in fact I'm considering adding a fan or something, triggered in case the temp gets close to 70, just to circulate some of the heat away. For the price, I'm extremely impressed. This stuff definitely created a thermal barrier between the super-cold cement block that the seedlings sat on—that block is such a huge mass that there's no way a heating pad is going to ever warm it up (remember, we're in a basement and this is essentially a secondary foundation wall that just happens to be super wide). The insulation also created at least a basic vapor barrier on the interface w/crawlspace, blocking a lot of drafts and little gaps. The fact that it's so thin and easy to work meant I could also tack it up around edges and corners, which is where the drafts were the worst. I know this isn't really designed to be the only insulation in this use case (I might have been better off installing batts of fiberglass, and would certainly do so if I were trying to treat an entire basement), but it's cheaper, MUCH smaller, MUCH easier to work with, AND you can wipe it down (within reason—it IS possible to rip the shiny surface). If you're looking for something very thin with a good radiant shielding effect, this is it. The only downside I can think of is that the material is thin. While this is usually a positive, you do need to be careful with it, as it's possible to rip the foil layer and have it start peeling off. That's different from a lot of other kinds of insulation (fiberglass batts, foam board, spray...) where the material itself is real tough and workable. This is thin and precise—install accordingly.

### ⭐⭐⭐⭐⭐ Dropped my heating cost 30%
*by R***R on January 20, 2026*

This insulator works amazing, I heat my duck house and used this insulation to cover the entire interior of the duck house and it traps the heat in amazingly. Great product will be buying more for sure!!

## Frequently Bought Together

- INSULATION MARKETPLACE SmartSHIELD -3mm 48 inchx100Ft ReflectiveINSULATION roll, Foam Core Radiant Barrier, ThermalINSULATION Shield - Engineered Foil
- TapePlus 1 Pack Professional Grade Aluminum Foil Tape - 2 Inch by 210 Feet (70 Yards) - Perfect for HVAC, Sealing & Patching Hot & Cold Air Ducts, Metal Repair, and Much More
- Aluminum Foil Tape, 2 inch x 65 Feet (3.9 mil), Insulation Adhesive Metal High Temperature Heavy Duty HVAC Tape, Silver for Ductwork, Dryer Vent, HVAC

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**Shop now:** [https://www.desertcart.hk/products/188167735-smartshield-3mm-foil-foil](https://www.desertcart.hk/products/188167735-smartshield-3mm-foil-foil)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-02*