Description
Features, benefits and product information
High-Strength Acoustic Sealant & Plasterboard Adhesive for Professional Dry Lining
Reduce noise transfer while creating a strong, flexible bond with Everbuild Everflex AC50 Acoustic Sealant & Adhesive 900ml. Designed specifically for dry lining, plasterboard installation and acoustic sealing, AC50 forms an effective sound barrier by sealing joints, gaps and perimeter details in walls, ceilings and floors.
Ideal for professional builders, plasterers, contractors and DIY installers, Everbuild AC50 combines the performance of an acoustic sealant with the holding power of a high-grab adhesive, making installation quicker while helping improve the acoustic performance of partition walls and ceiling systems. It is independently tested to BS EN ISO 140-3 and complies with EN 15651-1 and EN 13963 standards.
Unlike rigid fillers that can crack over time, AC50 remains permanently flexible after curing, maintaining an effective acoustic seal even as buildings naturally expand and contract.
Why Choose Everbuild AC50?
✔ Creates an effective acoustic barrier to help reduce airborne sound transmission
✔ High grab adhesive for fixing plasterboard and insulation boards
✔ Permanently flexible to resist cracking and maintain performance
✔ Excellent adhesion to plasterboard, timber, metal studwork and masonry
✔ Easy to apply with smooth tooling and simple clean-up
✔ Mould resistant formulation
✔ Non-flammable
✔ Can be painted once fully cured
✔ Professional 900ml foil sausage for faster coverage and fewer cartridge changes
Ideal Applications
Everbuild AC50 has been developed for both new-build and refurbishment projects, making it suitable for:
- Dry lining systems
- Plasterboard partitions
- Metal stud walls
- Timber stud walls
- Ceiling installations
- Floor perimeter sealing
- Acoustic wall systems
- Commercial fit-outs
- Residential renovations
- Office and apartment soundproofing projects
It is also ideal for sealing service penetrations, movement joints and perimeter gaps where maintaining an acoustic barrier is essential.
Suitable Substrates
Everflex AC50 bonds securely to a wide range of common building materials, including:
- Plasterboard
- Timber
- Metal studding
- Blockwork
- Brick
- Concrete
- Kraft-faced insulation boards
- Most common construction materials
Technical Information
- Colour: White
- Size: 900ml
- Application: Acoustic sealing and bonding
- Finish: Overpaintable after full cure
- Movement Capability: ±5%
- Service Temperature: -15°C to +70°C
- Standards: BS EN ISO 140-3, EN 15651-1, EN 13963