Stauf has introduced the XBL 12 for sound and moisture control. The cost of Stauf's #12 trowel has been greatly reduced by replacing the #12 trowel with the XBL 12 clip-on blade.
The XBL 12 clip-on blade is the exact same profile as the #12 trowel but has the capability of clipping on any existing trowel that installers may have.  
The XBL 12's may be ordered in individual boxes of 25 from Stauf for the use with PUM 950 and SMP 940, or they are included in the bucket of all 960 products moving forward.
For more information call 1-800-GLUE-USA or visit