APS 600 Series Silt Stop®

Emulsion-Based Erosion Control

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 600 Series Silt Stop® is a polyacrylamide (PAM)-based flocculant in emulsion form, engineered for erosion control and sediment management in challenging soil conditions. Designed for hydroseeding and water truck applications, it binds soil particles before they become runoff, protecting downstream water quality. Each batch is produced and packaged in the United States, certified under NSF/ANSI Standard 60, and tested to meet EPA environmental safety guidelines.

Soil-Specific Polyacrylamide Co-Polymer Emulsions

Ideal for Hydroseeding and Water Truck Applications

Reduces Erosion and Prevents Colloidal Clays from Entering Water Bodies

Primary Applications

Mine Tailings and Waste Piles
Newly cleared Construction or Building Sites
Road and Highway construction
Hydroseeding and Water Truck application

Features and Benefits

Removes solubilized soils and clay from water
Prevents colloidal solutions in water when applied to the soil surface
Will reduce soil movement during rain event on moderate slopes
Binds cationic metals within the soil matrix, reducing solubilization
Reduces pesticide and fertilizer loss during rain events
Reduces wind borne dust conditions
Increases soil permeability and water penetration to shallow plants
Reduces operational and cleanup costs
Reduces environmental risk and compliance

Specifications / Compliances

NSF/ANSI Standard 60 Drinking Water Grade Chemical
Toxicity tested per EPA Guidelines
Made in the USA

Packaging

600 Series Silt Stop® is packaged in 5 gallon pails

Directions for Use

APS products should be matched to each site’s unique soil and/ or water. Please contact us to have your soil or water sample tested for FREE!
Shake well before opening as separation may have occurred.
APS 600 Series Silt Stop® Emulsions may be applied with hydroseeders, water trucks or other spraying devices. Spraying devices having a mechanical agitator or mixing apparatus or hydraulic recirculation will work best.
Pour emulsion into the water tank or hydroseeder filling water stream or with a mixing apparatus operating, and pour emulsion into the filled tank. Allow emulsion to mix for one – two minutes before application. Seed, fertilizer, and mulch should be added into hydroseeders before the emulsion has been added
APS 600 Series Silt Stop® Emulsion must be added at the end of the final mix and sprayed immediately. With the emulsion you must have 100% coverage
Caution – Do not exceed 1.5 gallons of emulsion / 1500 gallons as viscosity of the water may reduce spraying efficiency or damage spraying equipment.

Application Rates

Hydroseeding application rate (per acre coverage): varies by soil content and grade of slope
Gentle to Moderate slopes (0-4:1)
- High Clay Content = 1-2 gallons 600 Series Silt Stop per acre
- High Sand Content = 2-3 gallons 600 Series Silt Stop per acre
Steep Slopes (3:1 to 1:1)
- High Clay Content = 1-2.5 gallons 600 Series Silt Stop per acre
- High Sand Content = 2.5-3 gallon 600 Series Silt Stop per acre

Downloads

Contact us to have your site’s soil and water matched with the correct APS product for free!

Other Products You Should Know About

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

Flocculants & Polymers

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 Anionic PAM Is Important

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.