Phos-Chek LCE20W Exterior Retardant for Foliage

Wildfire Retardant for Vegetation and Foliage

PHOS-CHEK® LCE20W is an uncolored version of PHOS-CHEK LCE20-Fx long-term fire retardant (the red solution dropped from aircraft). PHOS-CHEK LCE20W is included on the US Forest Service Qualified Products List and delivers a proactive and preventive wildfire management solution that can be applied ahead of wildfire season or even during an oncoming threat by fire engine, water tender, or with Perimeter Solutions’ custom Ground Applied equipment.

Long-Term Fire Protection That Works Even When Dry

This long-term fire retardant for wildland areas continues providing wildfire protection even after drying, so that a single application can offer long-term efficacy across treated vegetation and high-risk outdoor areas.

Designed for Grass, Brush, and Wildland Fuels

PHOS-CHEK LCE20W is ideal for rapid deployment ahead of fires, and for potential fire events that are scheduled, including prescribed burns, helping reduce ignition risks across brush, grass fuels, and wildfire-prone vegetation

Key Features and Benefits

PHOS-CHEK® LCE20W functions as a wildfire prevention coating for vegetation, infrastructure, and high-risk outdoor environments through long-lasting ground-applied performance.

• Creates Fire Breaks by Reducing Fuel Flammability: Helps slow wildfire spread by reducing vegetation ignition and combustion risks.
• Uncolored Formula for Discreet Application: The clear formula supports applications where visible red retardant coloring is undesirable.
• Approved for Professional Wildfire Use: Included on the US Forest Service Qualified Products List for reliability.
• Effective for Preventive and Emergency Applications: Supports proactive wildfire planning and rapid deployment during active fire threats.

Where and When to Use

This retardant supports wildfire prevention efforts across residential, utility, infrastructure, and high-risk outdoor operational environments and applications, such as:

Defensible Space Around Homes and Communities

• Around homes and communities with pending wildfire danger
• Ingress and egress paths ahead of a fire

Utility Easements and Infrastructure Protection

• Pretreatment of utility easements and infrastructure
• Utility rapid response efforts ahead of a fire
• On utility poles

Pre-Treatment Before Wildfire Season or Active Threats

• Support of prescribed fires and backburn applications being conducted within days or weeks of application
• Prior to “hot work” that is being performed in high-risk fire areas

Coverage and Application

Proper application and coverage help maximize the performance of this exterior fire retardant for vegetation, infrastructure, and other high-risk outdoor environments.

PHOS-CHEK® LCE20W concentrate is mixed with water at a 5.2:1 ratio. 5 Gallons will make 26 gallons of solution, which will cover approximately 2600 sq ft, depending on foliage.

Ground Application Methods and Equipment

The product can be applied using fire engines, water tenders, or Perimeter Solutions’ custom ground-applied equipment, allowing flexible deployment across utility corridors, defensible spaces, and wildfire-prone environments.

Best Practices for Even Coverage

For consistent wildfire retardant performance, follow these application best practices:

• Apply evenly across targeted areas requiring reliable fire retardant for foliage and vegetation
• Avoid oversaturation or missed sections during application
• Treat high-risk ignition zones and surrounding vegetation thoroughly
• Follow recommended mixing ratios and coverage guidelines
• Reapply as needed after heavy weather exposure or vegetation growth

Why Choose PHOS-CHEK LCE20W

PHOS-CHEK® LCE20W has a proven wildfire retardant technology that is supported by the US Forest Service Qualified Products List. Its long-lasting formula continues working even after drying, allowing a single application to provide extended wildfire protection. 

Designed for contractors, utilities, and fire prevention teams, PHOS-CHEK LCE20W supports infrastructure protection, wildfire mitigation planning, and proactive response efforts across high-risk outdoor environments.