70% Straw, 30% Coconut Fiber The Erosion Control Blanket SC32 is an extended-term double net straw/coconut fiber erosion control blanket designed for use on severe slope and channel applications requiring erosion control for up to 24 months depending on moisture, lights, and environmental conditions. The blanket is sewn together on 1.5 inch (38.1 mm) centers. The SC32 meets all requirements established in the FHWA FP-03 as a Type 3B erosion control blanket for use on slopes with gradients not exceeding 1:5:1 (h:v) and has been tested by the National Transportation Product Evaluation Program (NTPEP). The SC32 comes packaged in clear shrink-wrap with a tan band and includes installation instructions. Different sized rolls are available with 83.61 m2, 167.2 m2, 418 m2, and 836.1 m2 per roll.