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It only makes sense that you would FibermulchII_mediumtrust your hydraulic mulch requirements to a company that dates back to 1888, and who has been producing quality erosion control products for over 40 years. Excel Fibermulch II is a product you can count on that is as successful as its manufacture. Just like the quality of Curlex Excelsior Erosion Control Blankets (ECBs), you can be assured of a high-quality mulch to provide trouble-free applications.

Material Characteristics

Excel Fibermulch II is made from all-natural, Aspen wood fibers FibermulchII_2_medium(no blending of unknown outside materials). Excel Fibermulch II provides an organic cover to protect seeds, enhance germination, and hasten revegetation when mixed with water and applied with hydraulic mulching equipment. Excel Fibermulch II fibers are a nutrient from nature that adds organic nourishment to the soil. It is a free-flowing product that allows for a uniform mix, which creates a ”blanket-like” effect to aid in the germination process. Excel Fibermulch II is available with optional Dri-Water Hydro MixTackifier and/or green tracer dye.


Performance Capabilities

Application Rate 2,000 – 2,500 lb/acre
 Slope Steepness ≤ 4H:1V
 Typical Longevity ≈ 3 Months


Typical Applications

  • Areas requiring mowing activities
  • Highway construction
  • Residential, commercial, & industrial development
  • Golf course construction
  • Environmentally sensitive areas
  • Slope stabilization


Excel Fibermulch II comes in water-tight, 50 lb bags that are easy to pour into the hydroseeding machine of your choice.  Optional green dye tracer packet can be placed directly into the tank with the fibers.  For applicator convenience, Excel Fibermulch II is shipped 45 bags per pallet, which equals 855 bags per truckload.

Suggested Specifications

– Hydraulic Mulch


Great Lakes Aspen (naturally seed-free)

Fiber Length

25% or more of fibers 0.40” (10.2 mm) long,
75% of fibers retained on #28 sieve

Moisture Content 10% ± 3%
pH 5.4 ± 0.1
Organic Matter 99.3% ± 0.2
Ash Content 0.7% ± 0.2
Water Holding Capacity 1401% ± 10%
Gross Bag Weight 50.0 lb (22.7 kg)
Dye Weight 4.0 oz (0.11 kg)
Tackifier Weight 7.2 oz (0.20 kg)


Before hydraulically Excel_Fibermulch_II_Application_mediumapplying Excel Fibermulch II, the finished grade shall be inspected by the Owner’s Representative to ensure it has been properly compacted and fine graded to remove any existing rills. It shall be free of obstructions, such as tree roots, projections such as stones, and other foreign objects. The contractor shall proceed when all satisfactory conditions are present. Each 50 lb bag of Excel Fibermulch II should be mixed with approximately 100 gallons of water and applied at a rate of 2,000 – 2,500 lb/acre. Mixing and application rates shall always be matched to project-specific specifications. Dri-Water Hydro mix tackifier (optional) and/or green tracer dye (optional) shall be mixed with water in the tank before being applied.  Apply Excel Fibermulch II in multiple directions for best coverage results.

Technical Support

Visit our Technical Support Library to view all Technical Support Documents by clicking on Technical Support at the top of any page or please Contact Us if you have further questions.

Disclaimer: Excel Fibermulch II is a system for erosion control and re-vegetation on slopes.  American Excelsior Company (AEC) believes that the information contained herein to be reliable and accurate for use in erosion control and re-vegetation applications.  However, since physical conditions vary from job site to job site and even within a given job site, AEC makes no performance guarantees and assumes no obligation or liability for the reliability or accuracy of information contained herein for the results, safety or suitability of using Excel Fibermulch II, or for damages occurring in connection with the installation of any erosion control product whether or not made by AEC or its affiliates, except as separately and specifically made in writing.