---
product_id: 51302969
title: "Everbuild Everflex AC50 Contract Acoustic Sealant and Adhesive, White, 380 ml"
brand: "everbuild"
price: "10134 Ft"
currency: HUF
in_stock: true
url: https://www.desertcart.hu/products/51302969-everbuild-everflex-ac50-contract-acoustic-sealant-and-adhesive-white-380
store_origin: HU
region: Hungary
---

# Acoustic barrier certified High strength adhesive Mould resistant Everbuild Everflex AC50 Contract Acoustic Sealant and Adhesive, White, 380 ml

**Brand:** everbuild
**Price:** 10134 Ft
**Availability:** ✅ In Stock

## Summary

> 🔊 Seal the Deal with Everflex AC50!

## Quick Answers

- **What is this?** Everbuild Everflex AC50 Contract Acoustic Sealant and Adhesive, White, 380 ml by everbuild
- **How much does it cost?** 10134 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/51302969-everbuild-everflex-ac50-contract-acoustic-sealant-and-adhesive-white-380)

## 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

- • **Easy to Use:** Designed for seamless application with a caulk gun for a professional finish every time.
- • **Acoustic Excellence:** Achieve superior sound insulation with our S EN ISO 140/3 certified formula.
- • **Versatile Application:** Perfect for bonding plasterboard, wood, metal, and more—one product, endless possibilities!
- • **Mould & Fire Resistant:** Stay safe and stylish with a sealant that resists mould and is non-flammable.
- • **Seal & Bond with Confidence:** Experience the ultimate in flexibility and strength with Everbuild Everflex AC50.

## Overview

The Everbuild Everflex AC50 Contract Acoustic Sealant and Adhesive is a high-strength, permanently flexible solution designed for both sealing and bonding applications. With a capacity of 380 ml, this white acrylic sealant is mould resistant, non-flammable, and over-paintable, making it ideal for creating acoustic barriers in various substrates. Its versatility and ease of use make it a must-have for any professional or DIY enthusiast.

## Description

Everbuild Everflex AC50 Contract Acoustic Sealant and Adhesive, White, 380 ml

## Features

- High strength, permanently flexible acoustic sealant and adhesive
- When used as an adhesive the formula bonds plasterboard to plasterboard and other common substrates including blockwork, wood and metal studding
- When used as a sealant this formula remains permanently flexible whilst being resistant to mould, non flammable and over paintable
- Using Everbuild Everflex AC50 as both a sealant and a adhesives in a area creates an acoustic barrier to S EN ISO 140/3 standard when applied correctly
- Apply using a caulk, sealant / adhesive cartridge application gun, we recommend the Everbuild Power Pro Heavy Duty Sealant / Adhesive Cartridge Applicator Gun

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Sika Everbuild |
| Part Number | AC50C4 |
| Product Dimensions | 3.2 x 3.81 x 25.4 cm; 639.56 g |
| Item model number | AC50C4 |
| Size | 380ml |
| Colour | White |
| Style | Compact |
| Material | Acrylic |
| Item Package Quantity | 1 |
| Included Components | 1 x cartridge |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 640 g |

## Product Details

- **Material:** Acrylic
- **Brand:** Everbuild
- **Style:** Compact
- **Item weight:** 0.64 Kilograms
- **Item dimensions L x W x H:** 32 x 38 x 254 millimetres

## Images

![Everbuild Everflex AC50 Contract Acoustic Sealant and Adhesive, White, 380 ml - Image 1](https://m.media-amazon.com/images/I/51EMqYoGsUL.jpg)

## Questions & Answers

**Q: Is the can 400 ml or 900 ml?**
A: This is the C4 400ml tube.

**Q: Could I use this to attach sound proofing matt directly to a plaster board wall? Thanks in advance for any help offered**
A: Yes, it's not only a flexible sealant but it's also an adhesive specifically formulated for sealing and bonding plasterboard and other Kraft lined insulation boards.

**Q: Is this 100% silicone?**
A: Not like any 100% silicone I have ever used.     It is more like a mud  but unlike silicone does not cure throughout the bead.      It has a cure on the outside crust but has an elastic type slower cure in the middle to allow for acoustic bounce and absorption.    I have removed some previous acoustic work and the beading is still tacky on the thicker beads after many months following installation.    It does grab however I would not trust it to hold any weighty objects

**Q: Can i use on the outside of my shed to seal gaps between wood joints?**
A: No. Sorry it will dissolve and run off in rain.

## Frequently Bought Together

- Everbuild Everflex AC50 Contract Acoustic Sealant and Adhesive, White, 380 ml
- Advanced Acoustics Premium Mass Loaded Vinyl Soundproofing Mat - 1.25m x 3m - 5kg/sqm - 2mm Thin
- Everbuild Stick 2 All Purpose High Bond Strength Contact Spray Adhesive, 500 ml, Beige

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**Shop now:** [https://www.desertcart.hu/products/51302969-everbuild-everflex-ac50-contract-acoustic-sealant-and-adhesive-white-380](https://www.desertcart.hu/products/51302969-everbuild-everflex-ac50-contract-acoustic-sealant-and-adhesive-white-380)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-01-23*