Product Information and Technical Data

#128 SBS Roof Coating is a specially formulated modified bitumen (SBS) coating and adhesive that is a blend of select asphalts, styrene-butadiene-styrene modifiers, mineral fibers, solvent and cohesive materials. Manufactured to a thick, brushable or spray consistency that provides lasting adhesion and a watertight seal to layers of cold applied, asphalt coated, fiberglass rolled roofing or polyester roofing plies. This is a cold applied, interply adhesive and weather resistant top surface coating. When used as an adhesive, it penetrates each ply layer to create a fused, well-bonded roof system. Unlike hot-applied materials, rapid cooling, wind, and improper heating do not influence the installation.

Uses 
#128 SBS Roof Coating may be used as a cold process adhesive for modified bitumen built-up roof assemblies. It may be used as an interply adhesive and surface coating for construction of fiberglass or polyester roof systems. May also be used as surfacing bitumen over existing or new built-up asphalt based roofs systems. Roof assemblies may be constructed using GlobalShield’s Type II Glass Base Sheet, Polyester Coated Base Sheet, Spun Bonded Polyester, or Stitch Bonded Polyester roofing plies.

Advantages 
#128 SBS Roof Coating is easy to apply and provides excellent substrate adhesion and strong lap bonds. May be used with, coated fiberglass, or polyester ply sheets. #128 SBS Roof Coating offers an unusual combination of controlled action and high adhesion strength. This unique modified asphalt adhesive is suitable for application by spray, brush, or squeegee. While the quality and performance of hot applied bitumen can vary a great deal, only select grades of asphalt are used. The result is a consistently high performance and weather capability. Our rigid quality controls are exercised through every step of manufacturing.

Cold process application means greater productivity on the roof. The system eliminates hot kettles, minimizes fumes and pollution. The traditional set-up and cleanup time on the roof is dramatically shortened. The risk of damage to the building, fire hazards and injury to personnel is greatly reduced.

Installation 
Coverage 
Interply Adhesive: Apply material at a minimum rate of 3 gallons per 100 square feet per ply.

Surface Preparation
Substrate and all ply sheets must be dry. When used as a surface coating, remove all loose gravel, silt and other contaminates, preferable with roof vacuum. Repair all surface defects. Upgrade flashings and surrounding masonry. Prime porous surfaces with #101 Asphalt Primer.

Application 
The following application information is designed to serve as a general guide. Depending upon your needs, detailed recommendations and design must be based on your roof’s existing set of conditions. The existing deck must be properly designed to support and secure the roof system. Ponding conditions are unacceptable and will adversely affect the performance of any roof system. Where positive drainage does not exist, water removal must be facilitated by lowering drains and/or installing tapered insulation, and/or installing additional drains. When adhesive is used with fiberglass plies, the adhesive must be sprayed to prevent ridging of ply sheet. Fiberglass plies must be cut in 18-20 foot lengths and allowed to relax a minimum of 30 minutes at 72°F or above, 45 minutes below 72°F, before installation into the adhesive. Do not re-roll relaxed lengths before placement. When installing GlobalShield Polyester Roofing Plies, the plies do not have to be pre-cut and adhesive may be spray, brush, or squeegee applied. Backnailing is required when slope exceeds 2 inches per foot. Adhesive 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.

Restrictions
Do not use lightweight roofing felts such as Type IV or Type VI fiberglass roofing felt. 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. 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.

SPECIFICATIONS

PACKAGING INFORMATION

Availability: Products are immediately available from GlobalShield, Inc. throughout the United States.

Cost: Cost data is available from your local GlobalShield representative.

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.

Statement of Policy and Responsibility:

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.

GlobalShield, Inc.
320-P North Point Parkway
Acworth, GA 30102
800-374-7663
770.974.2499
Fax: 770.974.2723
Email: solov@global-shield.com
Web site: www.global-shield.com