ClarkDietrich Sound Clip (CDSC)

Sound isolation and dampening clip

The ClarkDietrich Sound Clip is used in conjunction with 18mil (25ga) 7/8" deep drywall furring channel. It is used to fasten gypsum wallboard in various wall and floor-ceiling applications, while simultaneously providing acoustical separation. This significantly reduces the amount of airborne sound filtering from room to room. The ClarkDietrich Sound Clip adds notable STC points to most assemblies while reducing sound transfer.

  • Ideal for use in multi-family dwelling, hotels, theaters and hospitals
  • Used in conjunction with 7/8" 25 ga Furring Channel with a total standoff from stud of 1-5/8"
  • UL fire rated for most common assemblies
  • Complies to UL 263 test standards. See full list of UL® design assemblies in UL R19331
  • Maximum spacing 48" o.c. (laterally) x 24"o.c. (vertically)
  • Maximum acoustical design load is 36 lbs.
  • SOUND TESTING FOR TYPE X & TYPE C BOARDS

     

Product Data & Ordering Information

Thickness:   43mil (18ga)
Yield Strength:   33ksi
Coating:   G60
Dimensions:   3" x 1-1/4" (Clip only)
Packaging:   (100) pieces per box



attachment to framing studs:

  • Fasteners for Wood Framing Studs:
    #8 x 2-1/2" minimum size coarse thread screw
    (Recommended #12 or #10 x 2-1/2" hex head)
  • Fasteners for Steel Framing Studs:
    #8 x 1-1/2" minimum size fine thread screw
    (Recommended #12 or #10 x 1-5/8" hex head)
  • DO NOT attach CDSC to framing members with nails.
    (Only use approved screws)

     

Wall Sound Assemblies are certified by Western Electro-Acoustical Laboratories

Floor Sound Assemblies are certified by Intertek Building & Construction (B&C)

NVLAP Accredited for ASTM E90 & E413, ISO Certified

See test reports (in below links) for detailed requirements of construction of assembly.


 

CDSC STC Sound Assemblies on 3-5/8" ProSTUD

Wall Framing Stud Spacing Wall Board (Side1/Side2) Insulation STC Rating Test Report
3-5/8" ProSTUD 20 (33mil) 24"o.c. (1) layer / (1) layer - Type C R-19 60 TL18-291
3-5/8" ProSTUD 20 (33mil) 24"o.c. (1) layer / (2) layers - Type C R-19 62 TL18-292
3-5/8" ProSTUD 20 (33mil) 24"o.c. (2) layers / (2) layers - Type C R-19 63 TL18-293
3-5/8" ProSTUD 25 (15mil) 16"o.c. (1) layer / (1) layer - Type X R-11 56 TL18-199
3-5/8" ProSTUD 25 (15mil) 16"o.c. (1) layer / (2) layers - Type X R-11 60 TL18-197
3-5/8" ProSTUD 25 (15mil) 16"o.c. (2) layers / (2) layers - Type X R-11 62 TL18-194


CDSC STC Sound Assemblies on 2x4 Wood Studs

Wall Framing Stud Spacing Wall Board (Side1/Side2) Insulation STC Rating Test Report
2x4 Wood Studs 16"o.c. (1) layer / (1) layer - Type X R-19 53 TL18-201
2x4 Wood Studs 16"o.c. (1) layer / (1) layer - Type C R-19 60 TL18-288
2x4 Wood Studs 16"o.c. (1) layer / (2) layers - Type X R-19 57 TL18-204
2x4 Wood Studs 16"o.c. (1) layer / (2) layers - Type C R-19 61 TL18-289
2x4 Wood Studs 16"o.c. (2) layers / (2) layers - Type X R-19 61 TL18-205
2x4 Wood Studs 16"o.c. (2) layers / (2) layers - Type C R-19 62 TL18-290

 

 


Wall Tests:
The test was performed in accordance with ASTM E 90-09 (2016), Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and ASTM E2235-04 (2012), Standard Test Method for Determination of Decay Rates for Use in Sound Insulation Test Methods.

 

 

Floor/Ceiling Tests:
Available from ClarkDietrich Technical Services and will be posted online soon.