Butyl-Lastic

#122 Butyl-Lastic Roof Coating is a premium quality, asbestos free cold process roof coating manufactured with specially selected asphalts and raw materials. Butyl-Lastic is formulated with a high concentration of butyl rubber that imparts exceptional flexibility to the cured coating. Butyl-Lastic is also reinforced with select high tensile strength fibers to provide a tough, weatherproof roof surface for all seasons. This unique combination of elasticity and durability makes Butyl-Lastic superior to conventional fibered roof coatings.

Uses
#122 Butyl-Lastic Roof Coating forms a resilient, weatherproof surface coating for built up roofs. It is also a resilient, weatherproof surface coating for metal and concrete roofs.

Advantages
#122 Butyl-Lastic Roof Coating is excellent for use with polyester fabric for the ultimate cold process roof system. Butyl-Lastic forms flexible and tough for long lasting roof protection. It applies smoothly and easily.

Installation
Coverage
Product yield to achieve desired rate will be from 2.5 to 7 gallons per 100 square feet. The yield varies according to the existing surface texture. As a general rule, the smoother the surface, the less material is required. Recommended application rate is 40 to 112 mils wet film thickness that will produce 28 to 79 mils dry. A mil is 1 /1000 of an inch.

Surface Preparation
Remove all dirt, dust, debris and standing water by brooming and by forced air where necessary and where no danger or nuisance is caused to areas adjacent to work. All loose gravel must be removed from ballasted roofs. Scrape back to a hard edge all loose or scaled coating. Make all necessary repairs to existing surface prior to coating. Split seams, blisters, and cracks in existing surface should be repaired with GlobalShield Roof Cement and reinforced with GlobalShield Polyester. Heavily weathered or exposed felt surfaces, as well as concrete, masonry, or rusted metal should first be primed with #101 Asphalt Primer.

Application
Apply by pouring directly from the container and spreading with a standard roofing brush. Be sure to spread product evenly. For polyester fabric installation, apply a first coat of Butyl-Lastic to roof surface at 2 to 4 gallons per 100 square feet. Imbed the fabric in wet material, taking care to smooch out any wrinkles. Overlap 4" on parallel seams and 6" on end seams. Apply a finish coat of Butyl-Lastic at 2.5 to 4 gallons per 100 square feet.

#122 Butyl-Lastic Roof Coating cleans up with mineral spirits, but do not thin the product with this or any other solvents.

For the easiest workability in cold temperatures, warm containers by storing them overnight in a room at 65° to 75° F.

Drying Time: Four hours to touch at 70° F. & 50% relative humidify. Allow 7 to 14 days before any exposure to foot traffic.

Restrictions
Do not use with PVC film. Do not use where material, once applied, may come into contact with potable water. Not for use on or with products containing coal tar. Do not use on slate shingles or apply directly to wood surfaces. Surfaces to be dry and clean and must remain so for 24 to 48 hours after application. Not for use over rubber or plastic membranes - asphalt modified only. For exterior use only.

Cautions
This product is combustible. Keep away from heat, sparks and open flame. Avoid repeated or prolonged contact with skin. If swallowed, do not induce vomiting, Contact Physician Immediately. Keep container closed when not in use. KEEP AWAY FROM CHILDREN. Product label and Material Safety Data Sheet contain further information on the safe use of this product and precautions for the safe disposal of the container. They should be read and understood prior to use.

Percent Solids by Weight	70%
Percent Solids by Volume	70%
Weight Per Gallon: Pounds	7.7
Flash Point	105° F (Seta C.C.)
P.H.	N/A
Viscosity at 77° F.	40,000 cps.
Long-Term Service Temperature	-60° F. to +180° F.
Water Resistance: Intermittent Exposure	Excellent
Water Resistance: Ponded	Good
Solvent Resistance	Poor
U.V. Resistance	Good

Product Number	Size	Quantity	Weight
122-055	55 gal.	Each	500 lbs.
122-005	5 gal.	Each	45 lbs.

Technical Services: GlobalShield Technical Services Department provides problem analysis and assistance in developing recommendations for special applications. Warranty systems require inspection by GlobalShield prior to installation. Progress and final inspections are also required.

GlobalShield takes responsibility for the furnishing of quality materials, and providing specifications and recommendations for their proper installation. GlobalShield does not, either itself or through its representative, practice architecture or engineering. GlobalShield offers no opinion on, and expressly disclaims any responsibility for, the structural soundness of any roof deck on which its products may be applied. Opinions of competent structural engineers should be obtained by the owner as to the structural soundness of the roof deck, or its ability to properly support the contemplated roof installation. GlobalShield accepts no liability for any failure of the roof deck or resultant damages, and no GlobalShield representative is authorized to vary this disclaimer.

Product Information and Technical Data

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