---
product_id: 70544789
title: "Soundsulate LAG Mass Loaded Vinyl with Fiberglass Decoupler 1\" Thick Fiberglass"
brand: "soundsulate"
price: "₨456892"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/70544789-soundsulate-lag-mass-loaded-vinyl-with-fiberglass-decoupler-1-thick
store_origin: LK
region: Sri Lanka
---

# Class 1/A fire rating ASTM E84 1" thick quilted fiberglass decoupler 1lb/sf mass loaded vinyl barrier Soundsulate LAG Mass Loaded Vinyl with Fiberglass Decoupler 1" Thick Fiberglass

**Brand:** soundsulate
**Price:** ₨456892
**Availability:** ✅ In Stock

## Summary

> 🔇 Silence is the new luxury—upgrade your space with Soundsulate!

## Quick Answers

- **What is this?** Soundsulate LAG Mass Loaded Vinyl with Fiberglass Decoupler 1" Thick Fiberglass by soundsulate
- **How much does it cost?** ₨456892 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/70544789-soundsulate-lag-mass-loaded-vinyl-with-fiberglass-decoupler-1-thick)

## Best For

- soundsulate enthusiasts

## Why This Product

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

## Key Features

- • **Certified Fire Safety:** Class 1/A fire rating ensures peace of mind in any installation
- • **Versatile Installation:** Perfect for walls, ceilings, floors—wherever sound control meets insulation
- • **Thermal & Vapor Barrier:** Foil scrim kraft layer adds moisture resistance and thermal insulation
- • **Next-Level Soundproofing:** Combines dense MLV with thick fiberglass for superior noise blocking
- • **Dual-Action Acoustic Defense:** Fiberglass absorbs sound; MLV blocks transmission—double the protection

## Overview

Soundsulate LAG Mass Loaded Vinyl with Fiberglass Decoupler is a premium 1" thick composite soundproofing panel combining 1lb/sf foil-faced mass loaded vinyl with quilted fiberglass. It delivers an STC rating up to 29, superior sound absorption and blocking, thermal insulation, vapor barrier protection, and a Class 1/A fire rating per ASTM E84, making it ideal for professional-grade acoustic and thermal control in residential and commercial spaces.

## Description

Soundsulate Fiberglass Backed Mass Loaded Vinyl is a multi-purpose composite material featuring a flexible barrier laminated to an insulating and acoustical quilted fiberglass and finished with protective layer of Foil Scrim Kraft. This combination forms a thin acoustical product that provides superior sound transmission loss. Sound waves originating from the source will be initially absorbed by the fiberglass and then blocked by the mass loaded vinyl. Any reflected sound wave components will be dissipated into the fiberglass absorber. The addition of the foil scrim kraft outer layer provides a vapor-barrier and fire rated product.

## Features

- Combines 1lb/sf, 1/8" thick foil-faced mass loaded vinyl with a 1" quilted fiberglass decoupler.
- Significantly higher performance than 1 LB MLV
- Use anywhere that you would install fiberglass insulation and require sound control
- Excellent thermal and acoustical performance, STC rating up to 29
- Fire Rating: Class 1 or A per ASTM E84

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | BRB Products |
| UPC | 680226218214 |
| Part Number | I2-FPE9-3RUR |
| Item Weight | 50 pounds |
| Product Dimensions | 25 x 48 x 14 inches |
| Is Discontinued By Manufacturer | No |
| Size | 24" x 48" x 1" (5 pieces, 40 sf) |
| Color | Black |
| Item Package Quantity | 1 |
| Coverage | 2 square feet (per panel), STC rating up to 29 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Vinyl
- **Brand:** Soundsulate
- **Item Thickness:** 0.13 Inches
- **Recommended Uses For Product:** Soundproofing, HVAC, Pipes, Ceiling Insulation
- **Product Dimensions:** 48"L x 24"W

## Images

![Soundsulate LAG Mass Loaded Vinyl with Fiberglass Decoupler 1" Thick Fiberglass - Image 1](https://m.media-amazon.com/images/I/41gR-b4-MrL.jpg)
![Soundsulate LAG Mass Loaded Vinyl with Fiberglass Decoupler 1" Thick Fiberglass - Image 2](https://m.media-amazon.com/images/I/81mqHZXXpGL.jpg)
![Soundsulate LAG Mass Loaded Vinyl with Fiberglass Decoupler 1" Thick Fiberglass - Image 3](https://m.media-amazon.com/images/I/91HNlbENLBL.jpg)
![Soundsulate LAG Mass Loaded Vinyl with Fiberglass Decoupler 1" Thick Fiberglass - Image 4](https://m.media-amazon.com/images/I/61d-Icb5xxL.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.lk/products/70544789-soundsulate-lag-mass-loaded-vinyl-with-fiberglass-decoupler-1-thick](https://www.desertcart.lk/products/70544789-soundsulate-lag-mass-loaded-vinyl-with-fiberglass-decoupler-1-thick)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-07*