Bond/Tack Coats and Primers
Eliminates slippage planes and provides a better bond between new and existing pavement layers.
A single application of either a specially formulated asphalt emulsion or a low-viscosity asphalt cutback is a very inexpensive standard requirement used to improve the bond between layers of pavement. Proper bonding is essential to achieving a monolithic pavement/structure for optimal strength as per the design criteria. There are many different types of tack coats and emulsions.
A bond coat is a spray application of asphalt emulsion. It is applied to an existing asphalt or Portland cement concrete surface prior to a new asphalt overlay or patching. This eliminates slippage planes and provides a better bond between new and existing pavement layers.
Primers
A prime coat is a single application of either a specially formulated asphalt emulsion or a low-viscosity asphalt cutback. Its primary functions are to penetrate quickly into the granular surface, bind the material together, partially waterproof the granular surface to prevent water erosion, provide a temporary riding surface prior to overlay or seal coating, and provide a bond between the existing surface and the new wearing surface.
The asphalt emulsions used as prime coats typically contain a combination of asphalt and specially engineered agents that aid in penetrating the granular surface while binding the aggregate particles to achieve stabilization.
Safety Data Sheets
| Description | Pdf File |
|---|---|
| SDS – Anionic Rapid Setting Emulsion |  |
| SDS – Anionic Slow Setting Emulsion | |
| SDS – Cationic Slow Setting Emulsion | |
| SDS – Enviro-Colle Emulsion | |
| SDS – Rapid Curing Cutback | |
Related Resources
| Description | Pdf File |
|---|---|
| Product Data Sheet – CSS-1 |  |
| Product Data Sheet – CSS-1H | |
| Product Data Sheet – Enviro-Prem | |
| Product Data Sheet – RS-1 | |
| Product Data Sheet – SS-1 | |
| Field Trial – Hot Mix Asphalt over Enviroprem Trial, Rte 8/Rte 107, Connector |  |
| Product Data Sheet – Colasphalt Prime | |
| Product Data Sheet – EP-2000 A | |
| Product Data Sheet – EP-2000 B | |
