KOVARA® DOUBLE-SIDED TAPE

Alkalinity and moisture-resistant pressure sensitive tape

Product description

KOVARA® DOUBLE-SIDED TAPE is a specially formulated, highly aggressive two-sided pressure-sensitive tape.

Product use

KOVARA® DOUBLE-SIDED TAPE is a 4 in. wide tape suited for the following uses:

  • Sealing the seams between cuts of KOVARA® MBX by bonding to the smooth bottom surface of the membrane, to create a monolithic barrier against moisture and alkalinity
  • Adhering KOVARA® 95 or KOVARA® MBX to the concrete substrate using the Box Grid Installation Method when moderate or heavy traffic or rolling loads are expected
  • Anchoring at doorways and transition points, thresholds and/or reducers

KOVARA® DOUBLE-SIDED TAPE can be used over concrete slabs with a maximum relative humidity of 99.5% and maximum pH of 12.

Application

Preparation

Prior to application of KOVARA® DOUBLE-SIDED TAPE, all slab RH testing, pre-installation requirements, and concrete substrate preparation should be completed in accordance with the KOVARA® MBX or KOVARA® 95 product page installation guidelines on gcpat.com.

KOVARA® MBX Installation

Evaluate the KOVARA® MBX seam layout by measuring across the room and laying chalk lines to clearly identify the seam line locations. These lines will serve as a guide for setting the required 4” double-sided tape correctly. Begin by setting the first chalk line 4’10” away from one wall, and then measure all subsequent lines at 5’ intervals way from the first chalk line. Continue this pattern across the entire room

Begin placing the tape by anchoring the double-side tape along the first chalked line. The edge of the tape closest to the first wall should sit right along the chalk line. Pull the tape across the entire length of the seam line. Set the KOVARA® DOUBLE-SIDED TAPE in place and roll the KOVARA® DOUBLE-SIDED TAPE, ensuring that you have removed any wrinkles and the tape is flat. DO NOT REMOVE THE RELEASE FILM FROM THE KOVARA® DOUBLE-SIDED TAPE AT THIS TIME. Continue the process by placing tape at each of the newly snapped chalk lines, with the edge of the tape closest to the first wall sitting along the chalk line.

Unroll the KOVARA® MBX material starting at a wall, ensuring that the first piece falls exactly centered across the installed KOVARA® DOUBLE-SIDED TAPE. The smooth, glossy side of the KOVARA® MBX should be facing the substrate (down) and the rough, textured side should be facing up. Net fit to walls and trim to fit. Individual cuts should not exceed 30 linear feet in length.

Repeat the previous step to complete the layout of subsequent pieces, ensuring that the end cuts are staggered to allow the offset of cross seams.

Working from one side of the room, lightly butt the first two adjacent pieces of KOVARA® MBX together ensuring that both sheets fall centered over the previously placed KOVARA® DOUBLE-SIDED TAPE. Continue by removing the release film through the seam, while at the same time setting the KOVARA® MBX membrane into the tape. Continue this process across the entire installation, and roll all seams with either a hand roller or 75-100 pound resilient roller. NEVER OVERLAP SEAMS as it may telegraph through the finished flooring, and NEVER USE COMRESSION METHOD at any seams.

Complete the installation by setting the blue KOVARA® MBX seam tape across the top of all side seams and cross seams. Sweep the KOVARA® MBX membrane to remove any installation debris, dust or dirt that may have accumulated during the application. Complete the finished flooring installation in accordance with all manufacturer guidelines.

When installing around floor monuments, columns, or poles, splice the KOVARA® MBX to fit around the obstructions. Apply KOVARA® DOUBLE-SIDED TAPE to the concrete substrate across the entire length of each seam, and roll with either a hand roller or a 75-100 pound resilient roller. Once the KOVARA® MBX is in place, remove the release film through the seam, while at the same time setting the KOVARA® MBX membrane into the tape. Roll all seams again with either a hand roller or a 75-100 pound resilient roller.

KOVARA® Box Grid Installation Method

KOVARA® MBX and KOVARA® 95 are affixed to the concrete slab using KOVARA® DOUBLE-SIDED TAPE:

  • For a 5-foot x 5-foot box grid, 3 rolls of KOVARA® DOUBLE-SIDED TAPE are required per roll of KOVARA® MBX or KOVARA® 95
  • For a 2.5-foot x 2.5-foot box grid, 6 rolls of KOVARA® DOUBLE-SIDED TAPE are required per roll of KOVARA® MBX or KOVARA® 95

Determine the required layout of the KOVARA® DOUBLE-SIDED TAPE to form the box grid. Using a chalk line or straight edge, mark the floor where the KOVARA® DOUBLE-SIDED TAPE box grid will be positioned.

Begin placing the tape by anchoring it centered across one chalk line and pull the tape across the entire length of the line. Set the KOVARA® DOUBLE-SIDED TAPE in place and roll the tape, ensuring that you have removed any wrinkles and the tape is flat. Continue to install KOVARA® DOUBLE-SIDED TAPE centered over each box grid line marked on the floor. Roll all tape lines with either a hand roller or a 75-100 pound resilient roller.

DO NOT OVERLAP KOVARA® DOUBLE-SIDED TAPE. DO NOT REMOVE THE TOP RELEASE FILM FROM THE KOVARA® DOUBLE-SIDED TAPE AT THIS TIME.

Upon completion of the box grid, refer to the installation instructions on the KOVARA® MBX or KOVARA® 95 product pages on gcpat.com. When the KOVARA® MBX or KOVARA® 95 is positioned over the grid, sequentially remove the top release paper of the KOVARA® DOUBLE-SIDED TAPE to affix the KOVARA® MBX or KOVARA® 95 to the concrete. Roll all membrane with a 75-100 pound resilient roller before continuing with the finished flooring installation.

KOVARA® DOUBLE-SIDED TAPE Details

Roll Size 4 in. x 100 ft.
Roll Weight 1.8 lb
Packaging 12 rolls / carton

gcpat.com | North America Customer Service: 1 877-4AD-MIX1 (1 877-423-6491)

We hope the information here will be helpful. It is based on data and knowledge considered to be true and accurate, and is offered for consideration, investigation and verification by the user, but we do not warrant the results to be obtained. Please read all statements, recommendations, and suggestions in conjunction with our conditions of sale, which apply to all goods supplied by us. No statement, recommendation, or suggestion is intended for any use that would infringe any patent, copyright, or other third party right.

KOVARA is a trademark, which may be registered in the United States and/or other countries, of GCP Applied Technologies Inc. This trademark list has been compiled using available published information as of the publication date and may not accurately reflect current trademark ownership or status.

© Copyright 2018 GCP Applied Technologies Inc. All rights reserved.

GCP Applied Technologies Inc., 62 Whittemore Avenue, Cambridge, MA 02140 USA.

This document is only current as of the last updated date stated below and is valid only for use in the United States. It is important that you always refer to the currently available information at the URL below to provide the most current product information at the time of use. Additional literature such as Contractor Manuals, Technical Bulletins, Detail Drawings and detailing recommendations and other relevant documents are also available on www.gcpat.com. Information found on other websites must not be relied upon, as they may not be up-to-date or applicable to the conditions in your location and we do not accept any responsibility for their content. If there are any conflicts or if you need more information, please contact GCP Customer Service.

Last Updated: 2018-11-29

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