1.e.1.a Wood Fiber. Specially prepared, long strand (min. 25% 3/8- inch length), air -dried wood fibers (88% to 92% by weight) manufactured from wood chips, bark, or clean wood waste products, and conforming to the following requirements:
Moisture content 15% maximum Water holding capacity 1000 minimum (Grams of water per 100 grams of fiber)
1.e.1.b Bonding Agent. High- strength tackifier of powdered polysaccharide guar gum, blended hydrocolloid- based binder, hydrophyllic, or co- polymer material 5 to 12% by weight.
1.e.1.c Synthetic Fiber . System may contain up to 5% by weight of crimped, polyester fibers or other synthetic fibers with wetting and dispersion agents manufactured for use in mulching applications.
1.e.1.d Dye. System may contain a nontoxic, water soluble, colored dye to aid in the visual application coverage of the matrix.
1.e.1.e Activator. System may contain up to 1% by weight of organic and mineral fertilizers.
1.e.2 Gypsum Binder Matrix.
1.e.2.a Wood Fiber. Specially prepared, long strand (min. 25% 3/8- inch length), air -dried wood fibers manufactured from wood chips, bark, or clean wood waste products, and conforming to the following requirements:
Moisture content 15% maximum Water holding capacity 1000 minimum (Grams of water per 100 grams of fiber)
1.e.2.b Bonding Agent. Naturally occurring, high purity, processed hemi -hydrate gypsum with manufacturer's system additives, which when combined with water will form a cementitious binder that will produce a crust -like soil covering within 4 to 8 hours after application. Materia l that has become partially air set, lumpy, or caked before use is not acceptable for use.
1.e.2.c Synthetic Fiber. Synthetic fibers manufactured for use in mulching applications, coated with wetting and dispersion agents.
1.e.2.d Dye. System may contain a nontoxic, water soluble, colored dye to aid in the visual application coverage of the matrix.
2.a Tanbark. Suitable fibrous shredded, ground or chunked, aged tanbark derived as a by -product of the tannin extraction process, free from insect life, not decomposed, and between 1/4 inch and 2 inches in any dimension.
not decomposed, hardwood or pinewood tree bark produced from lumber mill processing operations, free of excessively fine particles and having a general size range of 1/4 inch to 2 inches in any dimension.