---
product_id: 808096281
title: "Heavy Duty 5mm Reflective Insulation Roll - Premium Foam Core Radiant Barrier for Energy Conservation -Commercial Grade Soundproofing Thermal Shield for Indoor and Outdoor Use (48\" X 25')"
brand: "sealtech"
price: "R1553"
currency: ZAR
in_stock: false
reviews_count: 8
category: "Sealtech"
url: https://www.desertcart.co.za/products/808096281-heavy-duty-5mm-reflective-insulation-roll-premium-foam-core-radiant
store_origin: ZA
region: South Africa
---

# Vapor & moisture resistant Advanced soundproofing tech Reflects 95% radiant energy Heavy Duty 5mm Reflective Insulation Roll - Premium Foam Core Radiant Barrier for Energy Conservation -Commercial Grade Soundproofing Thermal Shield for Indoor and Outdoor Use (48" X 25')

**Brand:** sealtech
**Price:** R1553
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Seal the heat out, save the planet in style!

## Quick Answers

- **What is this?** Heavy Duty 5mm Reflective Insulation Roll - Premium Foam Core Radiant Barrier for Energy Conservation -Commercial Grade Soundproofing Thermal Shield for Indoor and Outdoor Use (48" X 25') by sealtech
- **How much does it cost?** R1553 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/808096281-heavy-duty-5mm-reflective-insulation-roll-premium-foam-core-radiant)

## Best For

- sealtech enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Sustainable:** Non-toxic, non-allergenic, and commercial-grade quality for a healthier home environment.
- • **Quiet Comfort Upgrade:** Advanced soundproofing technology transforms noisy spaces into peaceful retreats.
- • **Weatherproof Versatility:** Seals out moisture and vapor for year-round indoor and outdoor protection.
- • **Built Tough, Installs Easy:** Premium 5mm virgin polyethylene foam core with fire-retardant foil layers—lightweight yet durable.
- • **Slash Energy Bills Effortlessly:** Reflects up to 95% of radiant heat to keep your space cool and your wallet happy.

## Overview

SEALTECH Heavy Duty 5mm Reflective Insulation Roll is a premium foam core radiant barrier designed for superior energy conservation. Measuring 48" x 25', it reflects 95% of radiant heat, resists moisture and vapor, and features commercial-grade soundproofing. Lightweight, fire-retardant, and easy to install, it’s perfect for indoor and outdoor use, delivering lasting durability and enhanced comfort while cutting energy costs.

## Description

Product description

Review: Insulation Worked Well! - This was an awesome product and great for keeping the 100F plus heat out of the house! We used it in a bay window and it cooled down the room tremendously by keeping the heat outside! I’d definitely recommend it for that easy DIY project of insulating your house or apartment with very little effort. All I needed was a good pair of scissors and a tape measure. It was easy to measure, cut and install! It’s worth the price in saving on utilities for your home. I’d recommend getting some because it’s easy to install and take down if needed!
Review: It works!keeps almost all cold out and all heat in.blocks all wind.10/10 - This stuff is amazing!!!!10/10 was super easy to wrap my trailer with cuts easy but very strong.keeps out all wind and most cold better then anything else I’ve tried..(I’ve tried double thick plastic on inside and out…)and this is 10x better and easier.and it goes a long way I measured and everything and it went close to double what I had expected so you also get more then your think.if you live where there’s winter this stuff is a no brainer do yourself a favor get it and thank me later

## Features

- SAVE ON ENERGY BILLS with SEALTECH Radiant Barrier! This advanced insulation reflects a remarkable 95% of radiant energy, providing unbeatable insulation for enhanced energy efficiency. Optimize your home's thermal performance and start saving on those energy bills!
- VERSATILE VAPOR AND MOISTURE RESISTANCE: SEALTECH's weatherproofing insulation is your go-to solution for windows, attics, ceilings, and outdoor applications. Resist humidity and moisture effectively, ensuring year-round protection against the elements.
- ROBUST CONSTRUCTION FOR ULTIMATE QUALITY: Our window insulation foam boasts a resilient 100% Virgin Polyethylene foam core, and is fortified with engineered foil layers that is fire retardant. Durable, easy to install, and lightweight, SEALTECH offers insulation solutions in various sizes and 3 thickness levels (3mm, 5mm and 10mm), catering to your specific needs.
- EXPERIENCE ADVANCED SOUNDPROOFING TECHNOLOGY: Elevate your living spaces with SEALTECH's Radiant Barrier. Beyond exceptional insulation, our advanced soundproofing technology enhances acoustic comfort, creating a tranquil and quiet environment in your home.
- NON-TOXIC AND LONG-LASTING BUILD: Invest in peace of mind with SEALTECH. Our insulation is fire retardant, non-irritating, non-allergenic, and built with commercial-grade quality. Ensure lasting durability and a healthier indoor environment for you and your loved ones. Upgrade to SEALTECH and redefine your insulation experience!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CS27NCR6 |
| Best Sellers Rank | #90,481 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #55 in Weatherproofing Window Insulation Kits |
| Brand | SEALTECH |
| Brand Name | SEALTECH |
| Coverage | 1200 square inches |
| Customer Reviews | 4.7 out of 5 stars 176 Reviews |
| Item Dimensions L x W | 48"L x 9.4"W |
| Item Thickness | 5 Millimeters |
| Item Type Name | Tarp |
| Item Weight | 4.61 Pounds |
| Manufacturer | SEALTECH |
| Manufacturer Part Number | ST-301-48X25 |
| Material | Polyethylene (PE) |
| Material Type | Polyethylene (PE) |
| Model Number | ST-301-48X25 |
| Product Dimensions | 48"L x 9.4"W |
| Recommended Uses For Product | Garage, Roof, Soundproofing, Wall, Warehouse |
| UPC | 810152573341 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** SEALTECH
- **Item Thickness:** 5 Millimeters
- **Material:** Polyethylene (PE)
- **Product Dimensions:** 48"L x 9.4"W
- **Recommended Uses For Product:** Boating, Camping

## Images

![Heavy Duty 5mm Reflective Insulation Roll - Premium Foam Core Radiant Barrier for Energy Conservation -Commercial Grade Soundproofing Thermal Shield for Indoor and Outdoor Use (48" X 25') - Image 1](https://m.media-amazon.com/images/I/71Q6jPcKopL.jpg)
![Heavy Duty 5mm Reflective Insulation Roll - Premium Foam Core Radiant Barrier for Energy Conservation -Commercial Grade Soundproofing Thermal Shield for Indoor and Outdoor Use (48" X 25') - Image 2](https://m.media-amazon.com/images/I/81OtUE4ExxL.jpg)
![Heavy Duty 5mm Reflective Insulation Roll - Premium Foam Core Radiant Barrier for Energy Conservation -Commercial Grade Soundproofing Thermal Shield for Indoor and Outdoor Use (48" X 25') - Image 3](https://m.media-amazon.com/images/I/71mxPrjMieL.jpg)
![Heavy Duty 5mm Reflective Insulation Roll - Premium Foam Core Radiant Barrier for Energy Conservation -Commercial Grade Soundproofing Thermal Shield for Indoor and Outdoor Use (48" X 25') - Image 4](https://m.media-amazon.com/images/I/71Sef7Ok-kL.jpg)
![Heavy Duty 5mm Reflective Insulation Roll - Premium Foam Core Radiant Barrier for Energy Conservation -Commercial Grade Soundproofing Thermal Shield for Indoor and Outdoor Use (48" X 25') - Image 5](https://m.media-amazon.com/images/I/81L6z+oHwgL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Insulation Worked Well!
*by J***N on May 14, 2025*

This was an awesome product and great for keeping the 100F plus heat out of the house! We used it in a bay window and it cooled down the room tremendously by keeping the heat outside! I’d definitely recommend it for that easy DIY project of insulating your house or apartment with very little effort. All I needed was a good pair of scissors and a tape measure. It was easy to measure, cut and install! It’s worth the price in saving on utilities for your home. I’d recommend getting some because it’s easy to install and take down if needed!

### ⭐⭐⭐⭐⭐ It works!keeps almost all cold out and all heat in.blocks all wind.10/10
*by I***9 on November 2, 2025*

This stuff is amazing!!!!10/10 was super easy to wrap my trailer with cuts easy but very strong.keeps out all wind and most cold better then anything else I’ve tried..(I’ve tried double thick plastic on inside and out…)and this is 10x better and easier.and it goes a long way I measured and everything and it went close to double what I had expected so you also get more then your think.if you live where there’s winter this stuff is a no brainer do yourself a favor get it and thank me later

### ⭐⭐⭐⭐⭐ Wonderful chicken coop insulator
*by S***N on April 30, 2026*

Used to insulate chicken coops during cooler weather here in South Carolina and it worked great! Much thicker than other brands, is not flimsy, worth the extra bit of money for the thickness. Definitely recommend.

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**Shop now:** [https://www.desertcart.co.za/products/808096281-heavy-duty-5mm-reflective-insulation-roll-premium-foam-core-radiant](https://www.desertcart.co.za/products/808096281-heavy-duty-5mm-reflective-insulation-roll-premium-foam-core-radiant)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-06-02*