Paint Type
Paint Striping Truck
Hand Operated Sprayer
Markings are usually applied after HMA paving and grooving (if needed) is complete. Markings are also periodically applied on existing facilities in order to maintain proper visibility. Markings can be applied by large automated trucks (see Image) or small hand-operated sprayers (see Image). In general, marking paint consists of three main components:
- Pigment. Provides color and opacity.
- Binder. Binds the pigment together and provides adhesion.
- Vehicle (or solvent). Adjusts the viscosity of paint and is volatile meaning that it evaporates away and does not become part of the permanent paint film. The pigment and binder are carried in the vehicle.
The makeup of each of these components determines the characteristics of the paint. P-620 allows for four types of paint markings: waterbourne, epoxy, methyl methacrylate (MMA), and solvent-based point.
