KOVARA™ MBX Moisture Barrier

KOVARA™ MBX is a moisture barrier designed to be laid down above concrete floor slabs and below floor coverings to protect these materials — as well as their adhesives — from any staining, warping or mold that may result from water vapor emissions and alkaline salts infiltrating through the concrete slab up to 100% relative humidity. KOVARA™ MBX consists of a three-layer composite construction, with a HDPE bottom layer for moisture protection, glass mat middle layer for dimensional stability, and dark blue mineral top layer to enhance adhesive bond.

 
KOVARA™ MBX is installed with KOVARA™ Double Sided Tape and KOVARA™ MBX Seam Tape to protect the seams above and below the membrane respectively. When moderate or heavy rolling loads are expected, additional application of KOVARA™ Double Sided Tape is required in a 5’ x 5’ or 2.5’ x 2.5’ box grid configuration. Refer to the KOVARA™ Box Grid Application Method on gcpat.com for additional information. 

features 

• Installation in a fraction of the time of epoxy-based moisture barrier 

• Reduced labor costs and improved project capacity for contractors

• Reduced downtime and business disruption for building owners

• No shotblasting required

• Resistant to heavy rolling loads

• No VOCs (per California Specification 01350)

• Does not support mold or mildew growth

• 10 Year Limited Replacement Warranty  

Suggested Applications

Hospitality                    Government

Corporate Offices         Education
            
Retail 

Specifications

                                                          US Units                                                 Metric

Roll Size                                              5 x 144 ft                                               1.52 x 43.89 m

Thickness                                            0.028 in                                                 0.71 mm

Roll Weight                                          82.8 lbs                                                  37.56 kg

Construction                                        3 ply composite

Application                                          carpet tile, LVT/P, engineered, laminate, static dissipative tile, ceramic (5'x5' box grid installation)                                                                                                       

Installation                                           loose lay with appropriate tape at seams
 

Performance Testing

Radiant panel                                                       passed

Smoke density                                                     passed

Impact insulation class                                        51 dB*

Sound transmission class                                    52 dB*

*acoustical rating using 6” concrete and 1/2" engineered wood, no suspended ceiling assembly