---
product_id: 78893713
title: "100mm Rockwool RWA45 (Formerly Known as ProRox SL920) Acoustic Slab (8 x 2.88m2 Packs)"
brand: "buildershop uk"
price: "A$2513"
currency: AUD
in_stock: true
category: "Buildershop Uk"
url: https://www.desertcart.com.au/products/78893713-100mm-rockwool-rwa45-formerly-known-as-prorox-sl920-acoustic-slab
store_origin: AU
region: Australia
---

# 45kg/m³ density for superior soundproofing Fire-resistant resin bonded wool 100mm thickness for robust insulation 100mm Rockwool RWA45 (Formerly Known as ProRox SL920) Acoustic Slab (8 x 2.88m2 Packs)

**Brand:** buildershop uk
**Price:** A$2513
**Availability:** ✅ In Stock

## Summary

> 🔇 Silence the noise, amplify your comfort.

## Quick Answers

- **What is this?** 100mm Rockwool RWA45 (Formerly Known as ProRox SL920) Acoustic Slab (8 x 2.88m2 Packs) by buildershop uk
- **How much does it cost?** A$2513 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/78893713-100mm-rockwool-rwa45-formerly-known-as-prorox-sl920-acoustic-slab)

## Best For

- buildershop uk enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Quality:** Resin bonded for durability and long-lasting performance
- • **Generous Coverage:** Each pack covers 2.88m² for efficient installation
- • **Flexible & Easy Fit:** Adaptable slabs perfect for walls and floors
- • **Thermal & Fire Shield:** Dual-action insulation keeps spaces safe and cozy
- • **Premium Noise Reduction:** Cut airborne sound with 45kg/m³ dense Rockwool

## Overview

Rockwool RWA45 is a 100mm thick, 45kg/m³ density resin bonded insulation slab designed for superior acoustic, thermal, and fire protection. Ideal for partition walls and floors, it effectively reduces airborne noise while providing durable, flexible installation coverage of 2.88m² per pack.

## Description

Rockwool RWA45 (formerly known as ProRox SL920) is a flexible high quality resin bonded Rockwool insulation Slab that can be used for thermal, acoustic and fire insulation. Rockwool RWA45 is 45KG/M3 density. Most commonly used when the reduction of noise is required. RWA45 is perfect for partition walls and floors to help stop airbourne sound.

## Features

- Rockwool RWA45 is a flexible high quality resin bonded Rockwool insulation Slab.
- Thermal, acoustic and fire insulation most commonly used when the reduction of noise is required.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01L4Q2VGE |
| Best Sellers Rank | 821,906 in DIY & Tools ( See Top 100 in DIY & Tools ) 124 in Insulation Wool |
| Coverage | 2.88 square meters |
| Date First Available | 11 Feb. 2013 |
| Item Package Quantity | 1 |
| Manufacturer | Buildershop UK |
| Manufacturer reference | 0226253 |
| Material | Wool |
| Part Number | 0226253 |
| Thickness | 1E+2 Millimetres |

## Product Details

- **Brand:** Buildershop UK
- **Item thickness:** 1E+2 Millimetres
- **Manufacturer:** Buildershop UK
- **Material:** Wool
- **Product dimensions:** 8L x 2.88W metres

## Images

![100mm Rockwool RWA45 (Formerly Known as ProRox SL920) Acoustic Slab (8 x 2.88m2 Packs) - Image 1](https://m.media-amazon.com/images/I/31IApuQ9lmL.jpg)

## Frequently Bought Together

- Buildershop UK 100mm Rockwool RWA45 (Formerly Known as ProRox SL920) Acoustic Slab (8 x 2.88m2 Packs)
- Bostik Fire & Acoustic Sealant, Up to 4 Hours of Fire Resistance, Sound Deadening Properties, Colour: White, Size: 290ml
- 12 x Everbuild AC50 Acoustic Sealant and Adhesive - C4 380ml

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**Shop now:** [https://www.desertcart.com.au/products/78893713-100mm-rockwool-rwa45-formerly-known-as-prorox-sl920-acoustic-slab](https://www.desertcart.com.au/products/78893713-100mm-rockwool-rwa45-formerly-known-as-prorox-sl920-acoustic-slab)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-20*