The RSL2 compound is a low metallic resin bonded material containing steel and composite aramid fibers. Of the Pagid Yellow endurance compounds this has the second-highest friction coefficient and initial bite. It maintains a stable and higher friction over a wide temperature range. This compound is known as very user-friendly with smooth modulation and release even with the high friction level. It has been very popular in club racing, enduro, and track days in GT and touring cars, especially with aero.