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Gold Bond® SoundBreak XP 1/2" Wall™ Board


Gold Bond® BRAND 1/2" SoundBreak XP Wall™ Board with Sporgard™* has an acoustically enhanced, high density gypsum core encased in a heavy, abrasion and mold/mildew/moisture resistant, 100% recycled, PURPLE® paper on both sides. Used in the construction of high rated STC wall assemblies, this 1/2" thick gypsum board consists of a layer of viscoelastic damping polymer sandwiched between two pieces of high density mold resistant gypsum board, providing constrained layer damping.

Tapered edges allow joints to be reinforced with ProForm® BRAND Joint Tape and concealed with ProForm® BRAND Ready Mix or ProForm® BRAND Quick Set Setting Compounds. For optimum mold and mildew performance, ProForm® BRAND XP Ready Mix is recommended for use.

Basic Uses

For use as single-layer application or as a component of multi-layered wall assemblies where sound transmission between rooms or dwelling units is a concern.


  • Resists the growth of mold per ASTM G 21 with a score of 0, the best possible score.
  • Resists the growth of mold per ASTM D 3273 with a score of 10, the best possible score.
  • Use of SoundBreak XP Wall Board results in wall partitions with high rated STC values that are thinner than traditionally built high rated STC wall partitions, providing increased usable floor space.
  • Superior sound damping, cost-efficient material that is easily finished and decorated in the same manner as standard gypsum board.
  • All SoundBreak XP Wall Board designs were tested by an independent third-party acoustical laboratory using the full scale ASTM E90 test procedure.
  • SoundBreak XP Wall Board is installed like traditional gypsum board, offering a more reliable and less complicated solution than alternative methods requiring clips and/or channels.
  • SoundBreak XP Wall Board can be cut by scoring deeply from both sides of the board before snapping, or with the use of a hand or power saw.
  • Provides greater resistance to surface abuse and indentation over standard gypsum board.
  • Heavy abrasion resistant paper and denser core provide greater resistance to surface abuse and indentation when tested in accordance with ASTM C 1629.

To View 5/8" SoundBreak XP Wall Board - click here.


*Sporgard is a trademark of LANXESS Corporation

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Technical Data
CSI 3 Part Specifications   PDF  DOC
GuideSpec   PDF  DOC
Literature   PDF  PDF
SDS   PDF  PDF (espaƱol)
Submittal   PDF
Checked items above will be available for email and download on the Submittal Builder page.

Other Resources

1/2" SoundBreak XP Tools