Erosion Stop®

Polymer-Based Soil Stabilization

Applied Polymer Systems products harness the power of environmentally friendly materials to solve numerous water quality, erosion, and sediment challenges. Anionic polyacrylamide (PAM) is a polymer flocculant that can be used for a wide variety of erosion, sediment, and stormwater management applications. APS products bind, stabilize, and/or remove commonly problematic particles like sediment (clays, silt), metals, and nutrients to prevent erosion, clear water, and improve BMP performance. APS products are made and packaged in the United States, are drinking water quality (NSF/ANSI Standard 60 Certified), have been extensively toxicity tested by third party laboratories in accordance with EPA standards, and are safe for both terrestrial and aquatic organisms and environments.

Product Overview

APS Erosion Stop® is a polyacrylamide (PAM)-based flocculant that stabilizes soil to reduce erosion and improve runoff quality. Applied to exposed soil surfaces, it creates a barrier that holds particles in place, especially on steep slopes or embankments. Developed and packaged in the U.S., Erosion Stop is drinking water safe and rigorously tested for non-toxicity in both land and aquatic environments.

Binds Soil to Reduce Erosion and Improve Runoff Quality

Effective on Slopes, Embankments, and Vulnerable Areas

Environmentally Safe and Easy to Apply

Primary Applications

  • Tackifier for hydromulch, straw, and/ or other agricultural fibers and landscape mulches
  • Soil stabilizer – agglomerates and holds the top layer of soil in place while allowing infiltration

Features and Benefits

  • Rapidly binds soil particles to stabilize soil, minimize erosion, and decrease runoff turbidity
  • Holds seed, soil, bacteria, nutrients, and fertilizer in place and prevent mobilization during rain
  • Improves water infiltration into soil surface and aids in vegetative establishment & reduced runoff
  • Increases water holding capacity, penetration and improved crop/ vegetation yields (USDA research)
  • Naturally derived and biodegradable
  • Easy to apply via hydroseeding or water truck
  • Effective & affordable

Common Applications

  • Erosion and Dust Control on construction sites with exposed soils
  • Protecting slopes and recently graded areas from erosion, reducing turbidity in stormwater, and mitigating fugitive dust to achieve regulatory compliance
  • Mining operations with haul roads, tailings, and/or spoil piles
  • Linear construction of roads, pipelines, and utility corridors
  • Mass grading projects like solar, wind, and housing developments
  • Improve performance of hydromulch slurries – lubricates viscous mulch matrixes, like BFMs/FRMs and helps maintain hydraulic pressure when pumping long distances for “hose work”.

Application Rates

Erosion Stop® liquid:
1-3 gallons per acre (moderate slopes)
3-5 gallons per acre (steep slopes)
Tackifier: 1 gallon/ acre

Erosion Stop® granular:
10-25 pounds per acre (moderate slopes)
25-50 pounds per acre (steep slopes)
Tackifier: 3-5 lbs./ acre

Precautions / Limitations

  • Use only as directed – exceeding suggested application rates will not improve performance.
  • Do not exceed 10 lbs. granular/ 1000 gallons of water, or 1 gallon liquid in 1000 gallons of water to prevent clogging hydroseeding/ spray equipment
  • Avoid inhaling dust/ powder, may cause irritation. Use dust mask when applying Erosion Stop® granular.
  • Clean up spills quickly. Do not use water unless necessary, extremely slippery conditions will result.
  • Consult manufacturer (Applied Polymer Systems) or authorized distributor for assistance

Frequently Asked Questions

Here are some quick answers to common questions about APS polymers, flocculants, and stormwater testing. For more details, visit our full FAQ page.

General Company and Approach

  • What does Applied Polymer Systems (APS) do?
    APS develops and supports polymer-based solutions for erosion and sediment control during construction.


    🔗 Learn more about APS

  • What makes APS different from other erosion control suppliers?
    APS focuses on testing, technical support, and correct polymer selection rather than one-size-fits-all products.

    🔗 APS technical support approach | Polymer performance testing

  • Who typically works with APS?
    APS works with engineers, contractors, inspectors, and regulators involved in construction-phase stormwater compliance.

    🔗 Industries served
  • What are flocculants?
    Flocculants help fine sediment particles bind together so they can settle and be captured within BMPs (Best Management Practices).


    🔗 Learn more about flocculants

  • Why are flocculants used in construction stormwater management?
    They address fine silts and clays that traditional sediment controls struggle to capture.

    🔗 Fine sediment and turbidity control solutions

  • Do flocculants replace erosion and sediment controls?
    No. Flocculants enhance the performance of BMPs, not replace them. They work best in combination with properly designed and maintained basins, ditches, and inlet protection.

  • What is APAM?
    APAM stands for Anionic Polyacrylamide, a polymer flocculant commonly used in construction stormwater applications.

    🔗 Anionic PAM overview

  • Is all APAM the same?
    No. Molecular weight and charge density vary, affecting how the polymer interacts with different soils.

    🔗 Polymer selection and matching
  • Why does the charge of a flocculant matter?
    Polymer charge affects how it interacts with sediments and aquatic life.

    🔗 Polymer chemistry and performance

  • Why is anionic PAM preferred for stormwater applications?
    Anionic PAM carries a negative charge that does not readily bind to fish gills or aquatic organisms when used correctly.

    🔗 Environmental considerations for polymer use

  • Why are cationic polymers not used in construction stormwater?
    Cationic polymers carry a positive charge and can bind strongly to fish gills, making them unsafe for stormwater applications.

    🔗 Proper polymer selection guidance

  • How does APAM reduce risk to aquatic life?

    When properly tested and applied, APAM binds fine sediment particles together so they settle and can be captured within BMPs, reducing turbidity and minimizing interaction with aquatic organisms downstream.

Scroll to Top