High float emulsions are unique liquid asphalts that, after curing, possess a gel structure. They have a greater resistance to flow and reduced temperature susceptibility.
Husky’s RS-1 product is a rapid-setting anionic emulsified asphalt that is designed to “break” and cure very quickly after being applied. It is made up of a paving grade asphalt dispersed as microscopic droplets in water. RS-1 is primarily a binder in spray patching machines for the repair of potholes, large cracks and other pavement distresses.
High float anionic medium-setting (HFMS) emulsions are used when unwashed graded mineral aggregates are used for seal coats. Their anionic medium-setting nature allows wetting of the stones before the emulsion breaks, while the high float property of the cured emulsion residue resists the tendency of the graded aggregate to “pump” the asphalt residue to the surface.
Husky’s SS-1 product is an anionic slow-setting emulsified asphalt with high stability that allows mixing with fine aggregates and dilution with water. It has many uses, such as:
Husky’s EAP-2 is a low-solvent anionic emulsified asphalt specifically designed to be used as a prime coat for granular base courses.
Prime coats are used to waterproof granular base courses and provide a temporary driving surface. The primer must set up quickly to permit traffic and shed rain. Once it’s cured, it must be hard, durable and dust-free.
Standard solvent-free emulsions, such as SS-1 or MS-1, are not designed to meet all the requirements of a good prime coat. SEP-1 is an excellent prime coat, but it may not address the growing environmental concerns associated with solvent-borne materials. EAP-2, however, attains all the necessary technical performance properties with a primarily water-based product.
Pounder Emulsions, a division of Husky, is a leader in providing asphalt emulsions. Through active involvement and leadership in industry associations and standards organizations, Pounder Emulsions has been instrumental in the development of specifications and test methods associated with the manufacturing and use of emulsified asphalts. Many of the standard emulsified asphalts in use today were originally conceived and developed by Pounder Emulsions.