KOVARA® MBX Moisture Barrier Flooring Underlayment
KOVARA® MBX moisture barrier is 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 99.5% 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.
Product Advantages - Installation in a fraction of the time of epoxy-based moisture barriers
- 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
- Does not support mold or mildew growth
- 10-year product warranty
WarrantyKOVARA® moisture barriers are backed by a limited 10-year replacement warranty. You can find the entire KOVARA® MBX warranty information at gcpat.com, or contact your GCP Applied Technologies sales representative for details.
Technical ServicesKOVARA® MBX customers benefit from GCP’s Technical Service team, providing field support for successful job completion.
Product UsesKOVARA® MBX can be used under any of these approved floor coverings:
- Carpet tile
- VCT-vinyl composition tile
- SVT-solid vinyl tile
- LVT/LVP-luxury vinyl tile/luxury vinyl plank
- SDT-static dissipative tile
- Laminate flooring
- Ceramic tile
- Porcelain tile
- Natural stone
- Broadloom carpet
- Woven synthetic-backed stretch-in, double glue and direct glue carpet
- PVC backed carpet
- Urethane foam backed carpet
- Compressed urethane backed carpet
- Recycled backed carpet
- Engineered wood-floating or direct glue
- Bamboo
The following specialty floors require review to verify existing conditions and use to ensure the best installation; please contact your local GCP flooring sales rep or GCP Technical Services for a warranty registration form or any other questions.
- Commercial and residential sheet vinyl flooring
- Rubber flooring
- Resilient sports flooring
- Wood court flooring
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