Western Excelsior manufacturers three Erosion Control Blankets (ECBs) to provide performance and longevity for a minimum of thirty months and up to thirty-six months. Excel SD-3 and Excel CC-4 provide the greatest longevity of all Excel ECBs. Further, Excel SD-3 and Excel CC-4 represent the highest performing ECBs in the Excel line. Excel SD-3 consists of a heavy duty Rocky Mountain Excelsior matrix mechanically bound (stitched) between two UV stabilized, heavy duty synthetic nets. Excel CC-4 consists of a 100% clean coconut fiber matrix mechanically bound (stitched) between two UV stabilized, heavy duty synthetic nets. Long term ECBs are an ideal choice for projects requiring protection for more than two growing seasons but do not require permanent protection. Actual product longevity is dependent on soil and climatic conditions.