Durock® Setting Type Basecoat

Durock® Setting Type Basecoat features
For interior and exterior Durock® boards and cement boards applications.
Specially formulated for Durock® system.
High flexibility.
Exceptional bond to the substrate.
High performance designed for use in EIFS system.
Asbestos-free product.
Durock® Setting Type Basecoat application
Place 5 liters of water in a container. Start the mixer; slowly add Basecoat and mix until to obtain a homogeneous mixture. Add more water if is necessary. Approximate water-cement ratios for Basecoat (hand or machine application) are 6 liters per bag. Mix plaster with a cage-type paddle driven by a heavy-duty drill capable of producing 300 to 450 rpm.
When the mixture is smooth and free of lumps, let stand 15 minutes, and then re-mix to a smooth paste. The surface where you will apply the cement must be completely clean, dry and free of dust, ice, grease, oil or other substances that may prevent adhesion.
Fill joints with Durock®® Basecoat with a Hammer-End Joint Knife and then place the reinforcing exterior tape DUROCK® brand, retroweling removing excess of Basecoat in order to embed the tape. Cover corners and vinyl beads. The thickness of the Durock® Basecoat must be thin, no more than 1 mm. Remove excess with a flat metal wool or polystyrene wet. Allow dry at least 4 hours.
Once the joints are dry, apply a uniform layer of 2 mm thick over the entire surface of Basecoat Durock® brand with a flat trowel. Allow dry at least 24 hours before applying any seal or finish

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