ProMatrix® EFM™ is a biodegradable, Engineered Fiber Matrix® composed of 100% recycled, Thermally Refined® virgin wood fibers, crimped biodegradable interlocking fibers derived from regenerated cellulose sourced from sustainably harvested wood, micro-pore granules mineral activators and wetting agents (including high-viscosity colloidal polysaccharides, cross-linked biopolymers, and water absorbents). The EFM is patented, made in the US, plastic-free, and phytosanitized to eliminate potential weed seeds and pathogens. When cured, ProMatrix forms an intimate bond with the soil surface to create a continuous, porous, absorbent and flexible erosion resistant blanket that allows for rapid germination and accelerated plant growth. ProMatrix performs as a Bonded Fiber Matrix (BFM) product and may require a 4-24 hour curing period to achieve maximum performance.