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Call us on 0208 123 9710 | Email us at info@soundstop.co.uk
Call us on 0208 123 9710 | Email us at info@soundstop.co.uk

Phonestar SBx Boards - 10mm

£21.95
Original price £21.95 - Original price £21.95
Original price
£21.95
£21.95 - £21.95
Current price £21.95


  • Superb performance backed by laboratory testing

  • Highly-engineered German acoustic boards with CE Mark

  • Can be used for walls and ceilings

These 1200mm x 800mm boards are a superior performance alternative to one of the layers of standard acoustic plasterboard.


The 10mm Phonestar SBX boards is the slim line cousin of the 15mm Phonestar Sbx board it is designed as a high performance addition to all soundproofing systems. It is used to upgrade wall and ceiling soundproofing systems as an alternative to one of the layers of plasterboard.


10mm SBx boards can be used for soundproofing walls and ceilings whether constructed from timber, steel or solid substrate, in new builds, conversions, remedial and refurbishment projects.

SBx boards are an excellent product designed to reduce the transmission of impact and airborne sound between two spaces. The product is our number one choice when trying to improve the soundproofing from noisy neighbours next door or upstairs.

Product Application

SBx Board main applications are in the following:

  • Soundproofing ceilings
  • Soundproofing separating walls
  • Soundproofing party walls
  • Soundproofing music, cinema and entertainment rooms



SBx Boards are a cross fluted engineered card and hardboard carcass containing a finely mixed and compacted loose quartz sand mixture, which exhibits high mass and density with unique self-decoupling properties.

SBx Boards are a natural product which are breathable, pollutant free and odourless, whilst they are only 10mm thick saving space versus a standard 12.5mm plasterboard. They are easy to cut and install with simple butt joints and does not require flanking strips. This makes for a speedy installation time and low cost of labour, or can easily be completed yourself.

SBx boards offer acoustic insulation which also adds thermal mass to lightweight structures.

Sound insulation performance actually improves by 3dB when a hard surface is fitted on to it and it supports 5kN loading.

This product can be used to very effectively soundproof a wall or ceiling. Ideally it should be used in combination with 60kg/m3 acoustic mineral wool.

Technical Data

Phonestar SBx board has been rigorously assessed by various European laboratories and it has a European Technical Approval – ETA 13/0411 – ensuring compliance with Building Regulations Part E for The Resistance to the Passage of Sound. Please note that this is not the case with a number of similar products for which the manufacturer often has done no testing themselves.


Here are the main details for this product:

Dimensions: 1200mm x 800mm

Thickness: 10mm

Pack Size: 1 Board

Weight: 12.0kg/m2

Density: TBC

Coverage: 0.96 sqm

Fire rating: Reaction to fire Class E under EN 13501-1

View Product Information Guide

Visit our Fitting Instructions section for more detailed instructions relating to your specific application.

Please contact our team if you have any questions on this product.

Looking for a complete soundproofing solution?

If your looking for soundproofing for a particular situation or application, then the best place to start is with our soundproofing solutions that cover walls, floors, ceilings and reducing echo. Select the relevant application below to find out more.

Wall Solutions

Floor Solutions

Ceiling Solutions

Echo Solutions

Check out our Echo solutions

If your looking for echo reduction for a particular situation or application, then the best place to start is with our echo solutions.

Echo Solutions

Instructions for use

The SBX board is used in place of a 12.5mm acoustic plasterboard. The product can be screwed in the same way as plasterboard. Cutting and sealing is done in the same way on both 10mm and 15mm SBx boards.

The boards are labelled with a particular side to be facing outwards. This ensures the product lies consistently from board to board.

Cutting SBx Boards to size

  • Ensure careful handling to minimise filler spillage – otherwise the final performance may be compromised
  • Only cut the SBx boards while it is laid flat
  • Use a straight edge for guidance
  • Cut with a jigsaw, hand saw, Stanley knife or circular saw (ceramic tile tungsten carbide grit jigsaw blade, or general purpose tungsten carbide fine tooth circular saw blade, for longevity)
  • Immediately seal all cut edges with PhoneStar SBx Tape while holding the board upright - See below for more details on using SBx Tape

Watch the SBx boards being installed by professionals:


Sealing a Cut SBx Board

Whenever the cut edge of the board is exposed the SBX sealing tape should be used to prevent silica leakage, here are basic instructions for sealing the cut boards:




Visit our Fitting Instructions section for more detailed instructions relating to your specific application.

Check out our Soundproofing Guides for more information, advice and tips on all aspects of soundproofing.

Don’t forget your SBx Board Sealing Tape!

Don’t forget your SBx Board Sealing Tape!

Whenever the cut edge of the board is exposed the SBX sealing tape should be used to prevent silica leakage.

Shop SBx Tape