Dryvit EPS Adhesive Dry blend adhesive and leveling coat specifically formulated to adhere Dryvit EPS Adhesive foam over stucco applications. EPS Adhesive is used to adhere architectural expanded polystyrene (EPS) foam shapes to cementitious substrates and to embed reinforcing mesh on architectural EPS foam shapes in stucco applications only. EPS Adhesive can also be used as a leveling coat and base coat for cementitious or acrylic finishes in stucco applications only. Questions? Contact Us.
Working Time: After mixing, the working time of EPS Adhesive is approximately 1 to 3 hours, depending on ambient conditions.
Drying Time: When used to bond EPS board or EPS shapes to an approved substrate, allow 24 hours to elapse before working on the surface. Drying time is dependent on the air temperature and relative humidity. Under average drying conditions [70 °F (13 °C) 55% RH] protect work from rain for at least 24 hours.
Job Conditions: – Air and surface temperature for application of EPS Adhesive must be 40 °F (4 °C) or higher and must remain so for a minimum of 24 hours.
Temporary Protection: Shall be provided at all times until permanent flashings, sealants, etc. are completed to protect the wall from weather and other damage.
Substrate Preparation: EPS Adhesive is applied to clean unpainted stucco. The substrate must be flat within 1/4 in (6.4 mm) in any 4 ft (1.2 m) radius.
For application of EPS foam shapes using EPS Adhesive over stucco, level the substrate and rough lightly with a rubber float. Apply the EPS Adhesive to the back surface of the EPS foam shape using a notched trowel and immediately place into position on the wall. CAUTION: Do not allow the surface of the EPS Adhesive to form a skin before positioning. For use as a base coat on architectural EPS foam shapes for stucco work, apply the EPS Adhesive mixture to the entire surface of the EPS foam shape at 1/8 in (3.2 mm). Fully embed the reinforcing fabric in the wet material troweling from the center to the edge of the reinforcing fabric so as to avoid wrinkles. A second thin coat of EPS Adhesive mixture should then be applied to completely embed the reinforcing mesh. The reinforcing fabric shall be
continuous at all corners and extended a minimum 2 1/2 in (64 mm) onto the stucco surface. When used as a leveling coat on stucco applications, apply the EPS Adhesive mixture to a maximum thickness of 1/4 in (6.4 mm).