Polyurethane - 2 Component Pedestrian Traffic Coatings - Sikalastic®-745 AL

Two-component, aliphatic, fast-curing, solvent free, traffic bearing wear and top coat

Sikalastic®-745 AL is a two-component, aliphatic, chemically cured, elastomeric polyurethane coating intended for use as the traffic bearing wear and top coat over polyurethane waterproofing membrane for pedestrian and vehicular traffic bearing applications, and as a protective top coat over polyurethane waterproofing membrane under a separate wearing course such as concrete or asphalt pavement, and tile in a setting bed.

• Low odor and fast turnaround
• Excellent crack-bridging properties and flexibility, even at low temperatures
• Resistant to water and de-icing salts
• Alkaline resistant
• Range of standard colors
• UV stable

Usage

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

Advantages

• Low odor and fast turnaround
• Excellent crack-bridging properties and flexibility, even at low temperatures
• Resistant to water and de-icing salts
• Alkaline resistant
• Range of standard colors
• UV stable

Packaging

17.6 gal. kit - four 5 gal. pails (net 4 gal. each)

Part A and four 1 gal. cans (net 0.4 gal. each) Part B

Color

Gray, Charcoal and Tan; custom colors available (min. 150gal.)

Product Details

Product Information

12 months in original, unopened containers

Store dry at 40-95 °F (4-35 °C).

Condition material to 65-85 °F (18-30 °C) before using.

Technical Information

Resistant to de-icing salts, and alkaline concrete and cementitious mortars/tile adhesives.

Application

Application Information

20-30 minutes

Consumption

133 ft²/gal. at 12 wet mils (12 dry mils)

115 ft²/gal. at 14 wet mils (14 dry mils)

100 ft²/gal. at 16 wet mils (16 dry mils)

90 ft²/gal. at 18 wet mils (18 dry mils)

Coverage rates provided are intended to achieve required wet film thickness under optimal conditions. Additional material may be required depending on substrate surface roughness and porosity, material and substrate temperatures, and other site-dependent factors. This will result in a lower coverage rate.

Application Steps

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.

Apply at the recommended coverage rate (see appropriate System Guide) using a notched squeegee or trowel, and backroll using a phenolic resin core roller. Apply aggregate evenly distributed at the appropriate rate immediately into wet coating and backroll if required (see appropriate System Guide). Allow coating to cure a minimum of 3-4 hours at 70 °F and 50 % R.H. or until tack fee between coats. Allow coating to cure for a minimum of 36 hours before opening to vehicular traffic or installing separate wear course.

Aggregate: Use clean, rounded or semi-angular oven dried quartz sand with a size gradation of 16-30 mesh for vehicular traffic and 20-40 mesh for pedestrian traffic, and a minimum hardness of 6.5 per the Moh’s scale. It should be supplied in pre-packaged bags and free of metallic or other impurities. Seeding of aggregate means an even, light broadcast short of refusal. A full broadcast of aggregate means a heavy application to refusal. Any loose aggregate must be removed prior to recoating. Backroll aggregate where indicated.

Removal

Remove liquid coating immediately with dry cloth. Once cured, coating can only be removed by mechanical means.

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