Lucas 1000BC Elastomeric Base Coating – Multi-Surface – 5 Gallon
Mechanically mix before using. Do not store above 90ºF. Apply only at temperatures above 40ºF and rising with less than 90% humidity and no threat of rain for 48 hours. Surface temperatures should be under 100ºF to avoid premature curing. If roof surface is hot, apply a light water spray to reduce its temperature.
The roof must be cleaned with Lucas #115 Universal Wash. All fasteners should be inspected and loose, broken or missing fasteners replaced. All seams, fasteners, curbs and penetrations should be sealed with Lucas #1500 Acrylic Roof Mastic. When applied to areas that retain water more than 48 hours service life will be severely diminished and adhesion failure can be expected.
Apply with a roller or suitable spray equipment at the rate of 1.25 to 1.5 gallons per 100 sq. ft. A top coat of Lucas #1000TC is required to achieve a consistent, pin-hole free, surface. Drying time to first top coat @ 70ºF is 2 to 4 hours.
Lucas #1000BC may be used for complete restoration of most roofs when combined with polyester fabric reinforcement. For complete encapsulation or the roof, 40 inch widths of fabric should be embedded in 2 gallons per 100 sq. ft. of 1000BC. An additional two coats of Lucas #1000TC at 1.5 gallons per 100 sq. ft., totaling 3 gallons, should be applied to the top surface after the first coat has dried. All laps should be a minimum of 4 inches.
Clean up: Soap and water (wet coating).
Shelf Life: One year from the date of manufacture.