North American Green

HydraCX2™

HydraCX2™ Extreme Slope Matrix™ is a high-performance hydraulic mulch designed especially for steep to severe slopes, 2:1 to 1:1.

HydraCX2 Product Specifications


Helps You Comply with EPA Effluent Guidelines

HydraCX2 can keep your project in compliance with the EPA's effluent guidelines without the need for treating water with flocculants or using advanced water treatment systems. See a summary and timetable of the EPA effluent guidelines.


Performance guarantee

When you design your project using the most recent version of the North American Green HydraCX2™ Design Estimator in effect at the time of your application, you can be confident that the product will work just as designed. That's our ultimate assurance guarantee.

North American Green, Inc. hereby guarantees the performance of HydraCX2 Extreme Slope Matrix, provided HydraCX2 is used in the application designed and specified by a qualified engineer or North American Green technical representative prior to product installation in accordance with the most recent version then in effect of the North American Green HydraCX2 Design Estimator. All conditions for product usage as stated in the Design Estimator and as stated here must be satisfied in order for the provisions of this guarantee to apply.

Download Design Estimator (PDF)

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Other Benefits

Consider the benefits of HydraCX2.

Cost-effective application

  • One-step application
  • Low water-to-mulch ratio
  • Ready to agitate instantly
  • Uses convenient, spray-on technology
  • Easy to clean up

Extensive testing

The porosity, absorbency, and proprietary blend of tackifiers and polymers of HydraCX2 deliver exceptional erosion control and fast vegetation establishment.

San Diego State University Slope Testing

*Modified ASTM D 6459 (Standard Test Method for Determination of Erosion Control Blanket (ECB) Performance in Protecting Hillslopes from Rainfall-Induced Erosion) testing was conducted by the Soil Erosion Research Laboratory (SERL) at San Diego State University in December 2007. Test beds utilized by SERL measure 2 m x 8 m. Target application rate was 3,500 pounds per acre.

To push HydraCX2 to its performance extremes, one of the test beds received an extended rain event.

This extended rain event totaled 10 inches of rain over a two-hour time period (an average of 5 inches of rain per hour). The data from this event showed that HydraCX2 can reduce sediment loss by as much as 99.7% compared to a non-protected plot.

TRI/Environmental Slope Testing

†Testing pursuant to ASTM D 6459 (Standard Test Method for Determination of Erosion Control Blanket (ECB) Performance in Protecting Hillslopes from Rainfall-Induced Erosion) was conducted by TRI/Environmental, Inc. The test used two plots on a 3H:1V slope gradient with an application rate of 4,000 pounds per acre. The plots used were 8 feet wide by 40 feet long. Raindrop sizes varied as a function of rainfall intensity. Wind speeds were maintained below 3 miles per hour. Rainfall height was a minimum of 15 feet. Each of the plots received an average rainfall of 2.2 inches per hour, 4.75 inches per hour, and 6.5 inches per hour for 20-minute durations. The average sediment loss for both plots was less than 2 pounds each. HydraCX2 was determined to be 99.6% effective, with a C factor of 0.004.

HydraCX2 achieves maximum performance once the matrix has dried.

Low water-to-mulch ratio

HydraCX2 requires a maximum of only 100 gallons of water per 50 pounds of mulch. Water-to-mulch ratio is important when you consider the costs of water and the time, labor, and fuel consumption for trips to and from the water source.

One-step application of seed, fertilizer, and mulch

HydraCX2 can be applied in one step together with seed and fertilizer. Contractors will appreciate the convenience and the quick, easy tank loading and one-step application of HydraCX2.

No synthetic fibers

HydraCX2 contains no synthetic fibers.

In multiple toxicity studies conducted according to EPA-821-R-02-123 Methods for Measuring Acute Toxicity of Effluents, the Ceriodaphnia dubia, Daphnia magna, and Pimephales promelas tests of HydraCX2 detected no significant toxicity in any of the tests, and control performance criteria were met.

In addition, HydraCX2 contains beneficial nitrogen, phosphorous, and potassium, nutrients that are important for plant growth.

Non-toxic

Pleasing, deep-green color

HydraCX2 has a natural-looking, deep-green color. The color gives a pleasing appearance to the applied product.

Excellent vegetation establishment results

HydraCX2 enhances seed germination and vegetation establishment. Its natural absorbency holds moisture and promotes seed-to-soil contact and germination, quickly promoting vegetation.

HydraCX2 has been tested according to ASTM 7322, Determination of Rolled Erosion Control Products (RECP) Ability to Encourage Seed Germination and Plant Growth Under Bench-Scale Conditions. The results concluded that the average plant height was improved by 35 percent in comparison to the control plot. In addition, vegetation establishment was increased by 500 percent.

Compost Analysis of HydraCX2 Extreme Slope Matrix

Unlike some wood-based mulches that may have carbon-to-nitrogen (C:N) ratios of more than 300:1, HydraCX2 has a carbon-to-nitrogen ratio that is typically less than 40:1. HydraCX2 requires less nitrogen from the soil for decomposition, leaving more of that nutrient available for plant growth.


Use HydraCX2 Instead

In many slope-protection applications, HydraCX2 can replace temporary erosion control blankets.

Also, see how HydraCX2 compares to high-performing wood and wood/synthetic hydromulch.



See a HydraCX2 Testimonial Video

Lauro Reservoir Restoration Project, Santa Barbara, California

The views, opinions, positions or strategies expressed in this video are not necessarily the views, opinions, positions, or strategies of North American Green. All services and information provided on this website are provided as general information only.

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