Sikalastic 720 Base Coat Summer Grade per 5 Gallon Pail - Gray

Sikalastic 720 Summer Grade (SG) Base is a two-component, aromatic, chemically cured, elastomeric polyurethane coating intended for use as the waterproofing base coat under polyurethane or epoxy wearing surfaces for pedestrian and vehicular traffic bearing applications, and as the waterproofing base coat under a separate wearing course such as concrete, and tile in a setting bed.

• Low odor and fast turnaround
• Extended working time in warmer weather conditions
• Excellent crack-bridging properties and flexibility, even at low temperatures
• Resistant to water and de-icing salts
• Alkaline resistant

Usage

• Multi-story parking garages
• Parking decks and ramps
• Foot bridges and walkways
• Mechanical rooms
• Stadiums and arenas
• Plaza and rooftop decks
• Balconies

Mixing

Premix Part A and Part B components using a mechanical mixer (Jiffy) at slow speed to obtain uniform color, making sure to scrape the solids from the bottom and sides of the pail. Pour part B into Part A slowly and while mixing scrape the side of the container, Mix the combined material thoroughly until a homogenous mixture and uniform color is obtained (typically 3 minutes). Use care not to allow the entrapment of air into the mixture.

Application

Apply at the recommended coverage rate (see appropriate System Guide) using a notched squeegee or trowel, and backroll using a phenolic resin core roller. Extend base coat over entire area including previously detailed cracks and joints. Allow coating to cure a minimum of 3–4 hours at 70 °F and 50 % RH or until tack fee before top coating. Allow coating to cure for a minimum of 36 hours before installing separate wear course.