Wildfire Shield
High-Temperature Fire Protection for Open Air Critical Wooden Infrastructure
Wildfire Shield is a high-performance, water-based acrylic coating engineered to protect wooden infrastructure from extreme wildfire exposure. Formulated with NanoTech's patented fire-resistant additive, this durable, non-toxic solution defends against flame spread, radiant heat, and thermal degradation—preserving the structural integrity of critical assets like wood timber lagging for highway retaining walls and utility poles.
Tested to meet ASTM fire resistance standards and validated by Caltrans, Wildfire Shield offers reliable performance through multiple fire cycles without requiring reapplication. It's easy to apply, environmentally responsible, and specifically designed to meet the growing demands of public fire mitigation projects.
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Features & Benefits
Unmatched Fire Performance
- Withstands direct flame exposure up to 3,272°F (1,800°C)
- Resists flame spread and blocks heat penetration through radiant and conductive transfer
- Proven through ASTM E84, E119, E162, and E662 testing
Durable & Long-Lasting
- Maintains adhesion and performance through repeated wildfire events
- Flexible, elastomeric formula resists cracking, water swelling, and abrasion
No-Hazard Composition
- Water-based and non-toxic with no reportable VOCs
- Safe for workers, communities, and ecosystems—no toxic runoff or leaching
Easy, Scalable Application
- Roll-on or spray-on installation using common field equipment
- Can be pre-applied off-site or applied in the field for rapid deployment
- Compatible with timber lagging and other DOT-approved substrates
Minimal Maintenance
- Annual inspections recommended; touch-up is simple with overcoating
- Resistant to vandalism and power-washable (with proper distance and care)
Where to Use It
- Highway Retaining Walls: Replace or reinforce timber lagging in fire-prone corridors
- Soil-Retaining Structures: Fortify wooden soil-retention systems with long-lasting, fire-resistant barriers
- Barrier Walls: Enhance public safety infrastructure along evacuation routes and wildfire zones
- Utility Poles & Critical Wood Structures: Reduce ignition risks in vulnerable utility networks
Product Videos
Technical Highlights
- Max Temp Resistance: 3,272°F (1,800°C)
- Application Temp Range: 41°F to 120°F
- Layer Thickness: 20–75 wet mils per pass, target 2 mm DFT
- Cure Time: Minimum 48 hours before exposure to rain or freezing
- Moisture Guidelines: Surface humidity must be below 19%
- Surface Prep: Power-wash or air-blast to remove debris; no primer required in most cases
- Maintenance: Clean with soapy water or low-pressure wash; easy to overcoat if needed
- Shelf Life: Store between 41°F and 100°F; avoid freezing
- VOC Content: No-reportable
- Application Methods: Airless sprayer or roller
- Certifications: ASTM E84, E119, E162, E662 tested, Caltrans validated
Supporting Resources
Take Action Today and Protect What Matters Most
Fire is unpredictable, but your protection doesn't have to be. NanoTech's Fire Protective Coating solutions are engineered to withstand extreme conditions, slow fire spread, and safeguard critical infrastructure. Whether you're protecting transportation networks, public infrastructure, or high-risk assets, our proven, field-tested coatings provide reliable, scalable fire mitigation.