Vinyl Muddable J-Bead (MJB)

Used to finish drywall edges when dissimilar materials and door and window encasements meet gypsum

Vinyl muddable J-Bead is designed to cover raw edges of drywall when butting up to other materials such as masonry, glass, door frames and window trims.

Description

Raised shoulder and extensive perforations along flange ensure excellent finishing compound adhesion and flush finish. Moisture- and  thermal-resistant properties of rigid vinyl trims make for ideal use around bathtubs, showers, windows and skylights. Rust proof and dent resistant. Easy to cut and install. Available in 1/2" and 5/8" depths.

  • Moisture and dent resistant.
  • Raised shoulder and perforations enhance compound adhesion.
  • Produces finished edges at panel terminations.
Installation

Watch how the muddable J-Bead is installed in a Armstrong® module perimeter acoustical drywall system:

Resources

ASTM & Code Standards

  • ASTM C1047 - Standard Specification for Accessories for Gypsum Wallboard and Gypsum Veneer Base
  • ASTM D3678 - Standard Specification for Rigid Poly Vinyl Chloride (PVC) Interior Profile Extrusions
  • Installation: ASTM C840 - Standard Specification for Application and Finishing of Gypsum Board
  • SDS & Product Certification Information

Storage:

All stored materials shall be kept dry.  Materials shall be stacked off the ground, supported on a level platform, and protected from the weather.

Submittals

PRoduct submittal SHeets

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Product Code Description
MJB Vinyl Muddable J-Bead

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