CSS-1h is a cationic asphalt emulsion which can be used as a tack coat or fog seal.
As a tack coating CSS-1h is a light application of diluted emulsion used to ensure a bond between a surface being paved and the new course. It is used to guarantee adhesion of hot mix or cold mix asphalt overlay to existing paved roads.
As a fog seal, CSS-1h is diluted with water similar to a tack seal, but used to renew old road surfaces that have deteriorated. Used to fill tiny cracks and surface voids and to inhibit raveling, no other surface treatment is required after application as a fog seal
Storing and Handling
Emulsions are stored between 10oC and 60oC, depending on the temperature required for application. When stored at higher temperatures, the tanks must be insulated. Hot water or steam can be used as the heating medium. Oil burners are also used.
The product should not be heated to above 60oC or else the material can no longer be used as intended. While heating during transport and in tanks or distributors it should be agitated to eliminate or reduce skin formation. At tank storage, a light agitation is performed to avoid settlement (forced air is not recommended as it will cause the emulsion to break). At drum storage it is recommended to roll the drums before use to ensure homogeneity.
Before diluting the product, the compatibility of the water with the emulsion must be checked. The water should always be added to the emulsion, not the emulsion to the water.
Petrochemical Trade CSS / CSS must not be mixed with cationic asphalt emulsions or other types of products in storage tanks, tank transports, or distributors.