--- product_id: 308868767 title: "Everbuild AC50 | High Strength Acoustic Sealant & Adhesive for Sealing and Bonding Plasterboards and Insulation Boards - 380ml - White" brand: "sika" price: "VT13045" currency: VUV in_stock: true reviews_count: 5 category: "Sika" url: https://www.desertcart.vu/products/308868767-everbuild-ac50-high-strength-acoustic-sealant-and-adhesive-for-sealing store_origin: VU region: Vanuatu --- # Acoustic barrier sealant High strength bonding Mould resistant & non-flammable Everbuild AC50 | High Strength Acoustic Sealant & Adhesive for Sealing and Bonding Plasterboards and Insulation Boards - 380ml - White **Brand:** sika **Price:** VT13045 **Availability:** ✅ In Stock ## Summary > 🔇 Seal the silence, bond the future. ## Quick Answers - **What is this?** Everbuild AC50 | High Strength Acoustic Sealant & Adhesive for Sealing and Bonding Plasterboards and Insulation Boards - 380ml - White by sika - **How much does it cost?** VT13045 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/308868767-everbuild-ac50-high-strength-acoustic-sealant-and-adhesive-for-sealing) ## Best For - sika enthusiasts ## Why This Product - Trusted sika brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multi-Surface Adhesion:** Bonds plasterboard, wood, metal studding, and blockwork with superior strength for versatile applications. - • **Acoustic Barrier Creation:** Seals gaps to reduce noise transmission, perfect for quiet, professional spaces. - • **Overpaintable & Solvent-Free:** Seamlessly integrates with your interior design without harmful fumes or visible residue. - • **Permanently Flexible Sealant:** Maintains flexibility to prevent cracks and gaps over time, ensuring lasting acoustic performance. - • **Mould Resistant & Non-Flammable:** Safe for indoor use with added protection against mould growth and fire hazards. ## Overview Everbuild AC50 is a 380ml high strength, permanently flexible acoustic sealant and adhesive designed for sealing and bonding plasterboards and insulation boards. It creates an effective acoustic barrier by sealing gaps, remains mould resistant, non-flammable, and is overpaintable for a clean finish. Compatible with multiple substrates including wood, metal, and blockwork, it’s the go-to solution for professional-grade interior finishing and noise control. ## Description Everbuild Everflex AC50 Contract Acoustic Sealant and Adhesive is a high strength, permanently flexible acoustic sealant and adhesive. As an adhesive the formula is designed to bond plasterboard to plasterboard and other common substrates including blockwork, wood and metal studding . Also for sealing and bonding most Kraft lined insulation boards. The sealant properties of this formula enable it to remain permanently flexible whilst being resistant to mould, non flammable and over paintable. The combination of these two elements of the Everflex AC50 Contract Acoustic Sealant and Adhesive formula create an acoustic barrier when used correctly. Review: Lo compre sabiendo lo que era. Cumple con su función.Lo utilice para sellar marcos de ventanas que venían sin sellar de obra. Review: I had some hesitation because other reviewers said it didn't fit in a culking gun - they do in fact fit in a normal size skeleton/caulking gun. Someone else mentioned not getting nozzles, i got 3 nozzles with 3 tubes as expected. The sealant itself was easy to use when sealing round insulated plasterboard. I also used it as frame sealant around the window/plasterboard joints and round sill. Tooled off and cured really nicely. Between this sealant and insulated plasterboard the room is warmer and a little quieter. Will use again ## Features - C50 is a high strength, permanently flexible acoustic sealant and adhesive specifically formulated for sealing and bonding plasterboard and other kraft lined insulation boards to common substrates. - To form an acoustic barrier by sealing gaps between plasterboard walls, floors and ceilings and in dry lining applications. - When used as a sealant this formula remains permanently flexible whilst being resistant to mould, non flammable and over paintable. - As an adhesive to bond plasterboard to plasterboard, wood and metal studding and direct to blockwork. For sealing and bonding most other Kraft lined insulation boards. - All surfaces must be clean and dust free. All loose or flaking surface coatings, and old sealant and mastic joints, should be removed before application. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0012RLYJ6 | | ASIN | B0012RLYJ6 | | Best Sellers Rank | #91,255 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #413 in Cyanoacrylate Adhesives #535 in Hardware Sealers | | Brand Name | SIKA | | Color | White | | Compatible Material | Metal | | Customer Reviews | 4.3 4.3 out of 5 stars (489) | | Customer reviews | 4.3 4.3 out of 5 stars (489) | | Date First Available | 6 August 2012 | | Global Trade Identification Number | 05029347600358, 05029347903268 | | Included Components | 1 x cartridge | | Is Discontinued By Manufacturer | No | | Item Dimensions | 32 x 38 x 254 millimeters | | Item Form | Paste | | Item Type Name | Acoustic Sealant | | Item Weight | 0.64 Kilograms | | Item model number | AC50C4 | | Manufacturer | Sika Everbuild | | Manufacturer | Sika Everbuild | | Material Type | Acrylic | | Model | AC50C4 | | Number of Items | 12 | | Part Number | AC50C4 | | Product Dimensions | 3.2 x 3.81 x 25.4 cm; 639.56 g | | Style Name | Compact | | Surface Recommendation | Wall | | Unit Count | 380.0 Milliliters | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** SIKA - **Item dimensions L x W x H:** 32 x 38 x 254 millimeters - **Item weight:** 0.64 Kilograms - **Material:** Acrylic - **Style:** Compact ## Images ![Everbuild AC50 | High Strength Acoustic Sealant & Adhesive for Sealing and Bonding Plasterboards and Insulation Boards - 380ml - White - Image 1](https://m.media-amazon.com/images/I/71SM3q2goQL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***L on 5 January 2016* Lo compre sabiendo lo que era. Cumple con su función.Lo utilice para sellar marcos de ventanas que venían sin sellar de obra. ### ⭐⭐⭐⭐⭐ Review *by A***R on 10 May 2023* I had some hesitation because other reviewers said it didn't fit in a culking gun - they do in fact fit in a normal size skeleton/caulking gun. Someone else mentioned not getting nozzles, i got 3 nozzles with 3 tubes as expected. The sealant itself was easy to use when sealing round insulated plasterboard. I also used it as frame sealant around the window/plasterboard joints and round sill. Tooled off and cured really nicely. Between this sealant and insulated plasterboard the room is warmer and a little quieter. Will use again ### ⭐⭐⭐⭐ Review *by A***R on 4 October 2020* A good item which did the job just what I expected. ## 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 --- ## 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.vu/products/308868767-everbuild-ac50-high-strength-acoustic-sealant-and-adhesive-for-sealing](https://www.desertcart.vu/products/308868767-everbuild-ac50-high-strength-acoustic-sealant-and-adhesive-for-sealing) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-07*