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Curlex_Curls_and_Barbs_(American_Excelsior_Company)_mediumCurlex is considered the industry standard by many because of the plethora of Curlex Features and Benefits.  Remember, there is only one Curlex.  Accept no imitations.

Heavy Duty Curlex Blankets, for long-term protection against wind and water erosion, are a natural choice in place of stone or riprap in swales, ditch bottoms, and on long, steep slopes.

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Material Characteristics

Curlex® III
.98 lb/yd2 product with naturally seed free Great Lakes Aspen Excelsior Fibers designed to provide protection for grass seed and topsoil from wind and water erosion for ≈36 months, while simultaneously promoting ideal growing conditions.

Curlex® Enforcer®
1.25 lb/yd2 product with naturally seed free Great Lakes Aspen Excelsior Fibers designed to provide a fiber service life of ≈36 months, but the remaining components of the product are permanent. It is bound by two layers of extra heavy-duty black UV stabilized netting to provide permanent reinforcement between established vegetation and root systems in channel bottoms or on slopes.  Curlex Enforcer is a biocomposite turf reinforcement mat (TRM).








Curlex® High Velocity (HV)
curlex_hd_31.62 lb/yd2 product with naturally seed free Great Lakes Aspen Excelsior Fibers designed to provide extended protection for grass seed and topsoil from wind and water erosion for approximately 36+ months, while simultaneously promoting ideal growing conditions on steep, long slopes and/or in channel applications.

Learn more about the differences amongst various fibers used for erosion control.
Watch the Natural Mechanical Functions of Engineered Curlex Fibers.

Curlex heavy-duty excelsior blankets are available individually wrapped or in master packs to allow for mechanical unloading and stacking.

Curlex_EnforcerPerformance Capabilities

Curlex heavy duty blankets can handle wind and water shear even on steep slopes. These heavy duty blankets provide long-term protection in critical areas where vegetation requires additional time and protection to develop. The following are some practical application recommendations.

Video: ASTM D6460 Curlex III Channel Test

Product Slopes Shear Stress
Curlex III ≤ 1H:1V 120 Pa (2.5 lb/ft2) unvegetated
Curlex Enforcer ≤ .5H:1V 156 Pa (3.25 lb/ft2) unvegetated, 480 Pa (10.0 lb/ft2) vegetated
Curlex High Velocity (HV) ≤ .75H:1V 156 Pa (3.25 lb/ft2) unvegetated

Typical Applications

Channel bottoms, swales, steep slopes, let down structures, drop structures, and other areas associated with concentrated water flow exceeding the performance capability and service life of a standard biodegradable blanket.



Curlex HD Case Studies

Enforcing Soil in Place – Curlex Enforcer
Revisiting a Classic – IDOT Route 6 Project – Curlex High Velocity
Community Comes Together – Curlex NetFree, Enforcer, Sediment Logs

curlex_hd_6Choosing the Right Heavy Duty Curlex Product

Heavy Duty Excelsior Blankets are available in various fiber weights and netting combinations to match the appropriate job site requirements. Eighty percent of the Curlex fibers are six inches or longer with consistent thickness and are evenly distributed over its entire area. Both the top and bottom side of the blankets are covered with black, heavy-duty, extruded plastic mesh designed to provide strength beyond the service life of standard blankets. Curlex Excelsior blankets are naturally seed-free and do not contain any chemical additives or foreign matter.




 Suggested Specifications

Heavy Duty Excelsior Blankets


Roll Sizes 


Netting (top & bottom) 


Curlex III 8’ x 90’ (80 yd2) .98 lb/yd2 Black or FibreNet™ Natural or QuickGRASS® Green
Curlex Enforcer 8’ x 67.5’ (60 yd2) 1.25 lb/yd2 Extra Heavy Duty Black Natural or QuickGRASS® Green
Curlex High Velocity (HV)

8’ x 50’ (44.4 yd2)

1.62 lb/yd2 Heavy Duty Black or FibreNet™ Natural or QuickGRASS® Green

*Weight is based on a dry fiber weight basis at the time of manufacture.  Baseline moisture content of Great Lakes Aspen Excelsior is 22%.

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: Curlex HV, III, and Enforcer is a system for erosion control and re-vegetation on slopes and channels. 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, 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 by AEC. These specifications are subject to change without notice.