Five Star® Elastomeric Grout is specially designed for light rail transportation grouting. The three (3) component system consists of a two component polymer and aggregate that imparts vibration and sound damping properties combined with exceptional electrical resistance. This product is formulated for placements that require good flow and strong bonding to both rail and concrete, while maintaining line and grade. Five Star Elastomeric Grout is a solvent-free system that provides rapid cure and superior chemical resistance to a variety of chemicals including oils, fuels, acids, caustics and solvents. Five Star Elastomeric Grout is DOT non-hazardous, and is environmentally and applicator friendly.