A. Concrete Placement
1. Slab-on-grade or on the ground
a. A 10 mil minimum vapor barrier is necessary to prevent moisture vapor transmission. An efficient puncture proof barrier is recommended.
b. Proper jointing will minimize cracking which could transmit through the resinous flooring system.
2. Elevated Slabs
a. Pan construction should be vented.
b. Metal deck construction should be properly jointed to minimize cracking.
B. Curing and Finishing Techniques
1. Curing compounds, if used, must be
mechanically removed from the concrete surface prior to all resinous flooring applications.2. Recommended techniques:
a. Wet cure
b. Light steel trowel finish to minimize laitance and provide hard surface
C. Age of Concrete
Concrete must be a minimum of 30 days old for resinous flooring applications. Primers are now available which can be used on fresh (green) concrete on some installations. Contact the technical department for details.
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