NAC TAC is a non-flammable, neoprene-based primer for use in interior OR exterior applications. NAC TAC is a pre-mixed formula that requires no thinning, establishes a permanent bond in 48 hours and will not re-emulsify.
Substrate temperature must be a minimum of 18°C for 24 hours prior to application.
NAC TAC can be applied with a short nap roller, brush, trowel or sprayer. Allow NAC TAC to dry until tacky to touch, but non-transferable to finger. This may take as little as 10 minutes, but usually no more than 45, depending upon temperature, humidity, internal moisture level/porosity of substrate and application thickness.
Tile may be set immediately after membrane is installed on horizontal surfaces.
See the label on NAC TAC container or the specified membrane installation sheet for complete application instructions. Please refer to the Primer Reference chart to ensure appropriate substrate grade for the application.