Dilution allows the material to be sprayed at a higher rate, promoting uniform coverage while still maintaining minimum residual rates. Slow setting and quick setting asphaltic emulsions used as a tack coat can be diluted up to 1 part added water to 1 part original emulsion.
The residual rate is the amount of bituminous material that remains on the pavement after water and emulsifying or stabilizing agents evaporate it is not the application rate from the distributor truck. When asphaltic emulsions are used as a tack coat for asphalt concrete, the application rate is specified in terms of a residual rate. In addition to the specifications for asphaltic emulsions in Section 94, of the Standard Specifications, refer to the requirements for asphaltic emulsions in other sections of the Standard Specifications-Sections 18, 24, 27, 37, 39, 54, 66 and 86-covering work in which asphaltic emulsions are used.Īsphaltic emulsions are composed of a bituminous material uniformly emulsified with water and an emulsifying or a stabilizing agent. Asphaltic emulsions are also used for other purposes, such as curing seals for lime stabilization and cement-treated base and for coating the surface of cement-treated permeable base to facilitate measuring the thickness of concrete pavement.
They are used for seal coats and tack coat. Coating becomes waterproof only after drying thoroughly.Section 94 Asphaltic Emulsions 4-9401 GeneralĪsphaltic emulsions are described in Section 94, “Asphaltic Emulsions,” of the Standard Specifications. Drying will be slower, 2 to 7 days in cool, damp weather. Drying: Usually 6 to 24 hours in hot and dry weather conditions.
Application over hot applied asphalt may not prevent alligatoring. Typical age limit for roofs to be coated is 7 to 10 years, but varies with roof condition. Not recommended over gravel, plywood, rubber, or PVC sheet roofing or shingles of any kind. When transporting, make sure the pail is secured and the lid is tight to prevent spills. Do not heat container or store at temperatures greater than 110F. Precautions: DO NOT APPLY IF RAIN OR TEMPERATURES BELOW 50F ARE EXPECTED WITHIN 24 HOURS. Subject to the conditions of approval as a roof coating when installed as described in the current edition of the FMRC approval guide. UL listed for Class A and B fire rated roof coverings. Approvals and Certifications: Exceeds the requirements of ASTM D-1227-95, Type III, Class I, Dade County Compliant. Coverage: Approximately 100 square feet per 3 to 4 gallons (9 m sq. Usage: For concrete, masonry, steel tanks/coating composition, metal and smooth-surface asphalt built-up roofs. Solvent-free, non-fibered black asphalt, waterproof, non-alligatoring. Best-value, versatile protective roof and waterproofing coating. Base coat for energy saving reflective coatings. Protects roofing materials, roofing and masonry. Features: For dampproofing exterior below-grade foundations and walls. It resists most corrosive fumes and spray. Henry 107 Asphalt Emulsion will not crack, alligator, run, or sag under extreme weather conditions. Henry 107 Asphalt Emulsion is cold-applied, non-flammable while wet, corrosion-resistant, and waterproof when dry. Solvent-free, it is made from asphalt emulsified with bentonite clay and water. Premium, versatile coating for the protection of roofing materials, metal, and masonry surfaces.
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