Underlayments

Underlayment - Standard
Underlayment - Standard is a high-strength, flexible, trowel grade, two-component, polymer reinforced, cementitious underlayment formulated to provide a durable, uniform sub-surface for a wide variety of surface finishes.
It offers exceptional bond strength and crack resistance and is pre-packaged for easy on-site mixing with water. This fire retardant material also provides good thermal and acoustical insulation making it suitable for use in many occupied space environments.

Underlayment - Rapid Set
Underlayment - Rapid Set is a fast-setting, trowel grade, two-component, polymer reinforced, cementitious underlayment formulated to provide a durable, uniform sub-surface with exceptional bond strength and crack resistance.
It is pre-packaged for easy on-site mixing with water. Rapid Set is specifically formulated to cure in less time than traditional underlayments, allowing finished overlayments to be installed in three (3) to four (4) hours*, making it an ideal solution for occupied space where "walk on" time is critical. This fire retardant material also provides good thermal and acoustical insulation making it suitable for use in many occupied space environments.

Underlayment - High Build
Underlayment - High Build is a high-strength, flexible, trowel grade, two-component, polymer reinforced, cementitious underlayment formulated to provide a durable, uniform sub-surface for applications requiring high depth underlayment or thick bed mortars.
It offers exceptional bond strength and crack resistance and is packaged for easy on-site mixing with Mer-Ko's High Build Emulsion. This fire retardant material also provides good thermal and acoustical insulation making it suitable for use in many occupied space environments.

Underlayment - Thin Slope
Underlayment - Thin Slope is a flexible, trowel grade, two-component, polymer reinforced, cementitious underlayment formulated to provide a durable, uniform sub-surface for applications requiring a thin build, high-performance underlayment or smoothing material.
It offers exceptional bond strength and crack resistance and is ideal for heavy loads over 5,000 lbs (2,268 kg). This fire retardant material also provides good thermal and acoustical insulation making it suitable for use in many occupied space environments.