---
product_id: 48117682
title: "12 x Everbuild AC50 Acoustic Sealant and Adhesive - C4 380ml"
brand: "everbuild"
price: "$76.51"
currency: USD
in_stock: true
reviews_count: 8
category: "Everbuild"
url: https://www.desertcart.us/products/48117682-12-x-everbuild-ac50-acoustic-sealant-and-adhesive-c4-380ml
store_origin: US
region: United States of America
---

# High strength & permanent flexibility Water resistant for lasting durability 12 tubes per pack for bulk projects 12 x Everbuild AC50 Acoustic Sealant and Adhesive - C4 380ml

**Brand:** everbuild
**Price:** $76.51
**Availability:** ✅ In Stock

## Summary

> 🔊 Seal the silence, stick with strength!

## Quick Answers

- **What is this?** 12 x Everbuild AC50 Acoustic Sealant and Adhesive - C4 380ml by everbuild
- **How much does it cost?** $76.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/48117682-12-x-everbuild-ac50-acoustic-sealant-and-adhesive-c4-380ml)

## Best For

- everbuild enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Power Pack:** 12 x 380ml tubes to keep your projects flowing without interruption
- • **Flexible Strength:** Stays permanently flexible to absorb vibrations and prevent cracks—ideal for dynamic environments
- • **Acoustic Precision:** Specifically formulated for sealing and bonding plasterboard & insulation boards, perfect for soundproofing walls and ceilings
- • **Water Resistant Formula:** Built to withstand moisture, ensuring long-lasting seals in any room condition
- • **Professional Grade Sealant:** Trusted by pros for dry lining and acoustic applications, delivering a clean white finish every time

## Overview

Everbuild AC50 Acoustic Sealant and Adhesive comes in a convenient 12-pack of 380ml tubes, offering a high-strength, permanently flexible, and water-resistant solution designed specifically for sealing and bonding plasterboard and insulation boards. Ideal for walls, ceilings, and dry lining, it ensures professional-grade acoustic performance and durability.

## Description

Size C4 380ml. 12 tubes per pack. Colour white. AC50 Acoustic Sealant and Adhesive has a high strength Stays permanently flexible sealant and adhesive specifically formulated for sealing and bonding plasterboard and lined insulation boards. Ideally used for walls, ceilings and dry lining applications.

Review: Don't underestimate how much you need - Added sound treatment to a room for a music studio. MLV underlay, double skinned plasterboard knauff sound panels, rock wool, and sealed literally everywhere with this. Very good stuff but this entire pack just covered a 3.5m sq room.
Review: Flexible not strong grab - Great price with multi but tubes longer than standard need to be cut down . Not a great grab strength . Used these to glue acoustics rubber to plaster board . Probably would use adhesive next time depending on price difference

## Features

- 12 tubes per pack.
- Size C4 380ml.
- Colour white.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006SV7PPS |
| Best Sellers Rank | 10,957 in DIY & Tools ( See Top 100 in DIY & Tools ) 238 in Sealers |
| Brand | Everbuild |
| Colour | White |
| Compatible Material | Cardboard |
| Container Type | Tube |
| Customer Reviews | 4.5 out of 5 stars 134 Reviews |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 400 Millilitres |
| Item form | Liquid |
| Manufacturer | Everbuild |
| Manufacturer Part Number | EVBAC50C4X12 |
| Material | Silicone |
| Model Number | EVBAC50C4X12 |
| Number of Pieces | 12 |
| Other Special Features of the Product | High Strength, Water Resistant |
| Special feature | High Strength, Water Resistant |
| Specific Uses For Product | walls |
| Specific uses for product | walls |
| UPC | 610708898467 |
| Unit Count | 4560 millilitre |
| Viscosity Level | High |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Everbuild
- **Item form:** Liquid
- **Material:** Silicone
- **Special feature:** High Strength, Water Resistant
- **Specific uses for product:** walls

## Images

![12 x Everbuild AC50 Acoustic Sealant and Adhesive - C4 380ml - Image 1](https://m.media-amazon.com/images/I/819tWTQff4L.jpg)

## Questions & Answers

**Q: What sealant gun size is needed for this? Our standard sealant gun doesn't fit.**
A: Right I have two sealant guns, a cheaper one that is small and one little bit more expensive and it fits this sealant tube.  Another thing I done is cut the nozzle and push some sealant out the tube with a broom stick, then take a little hand saw and shorten the tube. Kaz krav maga

## Customer Reviews

### ⭐⭐⭐⭐⭐ Don't underestimate how much you need
*by C***E on 3 December 2025*

Added sound treatment to a room for a music studio. MLV underlay, double skinned plasterboard knauff sound panels, rock wool, and sealed literally everywhere with this. Very good stuff but this entire pack just covered a 3.5m sq room.

### ⭐⭐⭐⭐ Flexible not strong grab
*by J***S on 29 April 2024*

Great price with multi but tubes longer than standard need to be cut down . Not a great grab strength . Used these to glue acoustics rubber to plaster board . Probably would use adhesive next time depending on price difference

### ⭐⭐⭐⭐⭐ Great value, Worked very well
*by C***L on 19 March 2026*

Used these when building my recording studio. Worked very well and helped a great deal! used for sealing joints for noise reduction but additionally as a no more nails for some parts that were also acoustically weaker.

## Frequently Bought Together

- 12 x Everbuild AC50 Acoustic Sealant and Adhesive - C4 380ml
- Advanced Acoustics Premium Mass Loaded Vinyl Soundproofing Mat - 1.25m x 3m - 5kg/sqm - 2mm Thin

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/48117682-12-x-everbuild-ac50-acoustic-sealant-and-adhesive-c4-380ml](https://www.desertcart.us/products/48117682-12-x-everbuild-ac50-acoustic-sealant-and-adhesive-c4-380ml)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-11*