Solar Reflected Coating Near Infrared (IR)

MIL-PRF-85285E SRC Solar Reflective Coating

Cuts Heat. Not Light.

MIL-PRF-85285E SRC is an advanced Solar Reflective Coating engineered to reduce heat build-up caused by Near Infrared (NIR) radiation while maintaining visible light transmission.

Unlike conventional coatings that block both heat and light, MIL-PRF-85285E SRC selectively reflects heat-carrying infrared radiation while allowing visible light to pass through. The result is lower internal temperatures, improved equipment reliability, reduced thermal stress, and enhanced operational performance in demanding environments.

Developed using aerospace-grade polyurethane technology, the coating is ideal for defence platforms, aviation systems, radars, drones, electronic enclosures, and high-performance industrial applications.

The Problem Isn't Sunlight. It's What You Can't See.

Most conventional coatings treat sunlight as a single source of energy.

However, the majority of thermal loading is caused by Near Infrared Radiation (NIR), the invisible component of sunlight responsible for heat generation.

As equipment and structures absorb infrared energy, internal temperatures rise, resulting in:

  • Increased thermal stress on electronics
  • Reduced operational efficiency
  • Higher cooling requirements
  • Accelerated component ageing
  • Reduced system reliability

MIL-PRF-85285E SRC addresses the real source of the problem by reflecting heat-carrying infrared radiation before it can be absorbed.

Advanced NIR Heat Reflecting Technology

MIL-PRF-85285E SRC is specifically engineered to:

  • Reflect heat-carrying Near Infrared Radiation (NIR)
  • Allow visible light transmission
  • Reduce internal heat build-up
  • Maintain optical performance where visibility is required
  • Improve system reliability in high-temperature environments

The coating helps create cooler operating conditions without sacrificing visibility or functional performance.

KKey Performance Benefits

Reflects Infrared Heat (NIR)

Reduces thermal loading by reflecting heat-carrying infrared radiation.

Maintains Visible Light Transmission

Allows useful visible light to pass through while rejecting heat.

Reduces Internal Temperature

Helps lower internal temperatures by up to 15°C under representative test conditions.

Improves Equipment Reliability

Reduces thermal stress on sensitive systems, electronics, and mission-critical equipment.

Extends Service Life

Helps protect assets from long-term thermal degradation and environmental exposure.

Aerospace Grade Durability

Formulated using advanced polyurethane technology for long-term outdoor performance.

Measurable Performance Improvements

MIL-PRF-85285E SRC demonstrated significant performance improvements during evaluation:

ParameterUncoated SurfaceMIL-PRF-85285E SRC
Solar Factor1.000.51
Solar Direct Transmittance100%46%
Light Direct Transmittance100%59%
Selectivity1.001.28
Total Energy Reduction-49%
Interior Temperature Reduction-Up to 15°C

Operational Advantages

The reduction in thermal loading helps deliver:

  • Lower thermal stress on electronics
  • More stable system performance
  • Reduced cooling dependency
  • Increased mission readiness
  • Extended asset lifecycle
  • Improved operational efficiency

Applications

Defence Systems

  • Military vehicles
  • Tactical shelters
  • Field command systems
  • Protected mobility platforms

Aerospace & Aviation

  • Aircraft components
  • Aerospace structures
  • Ground support equipment
  • Aviation electronics housings

Radar & Communication Systems

  • Radar enclosures
  • Communication shelters
  • Surveillance systems
  • Sensor housings

Unmanned Systems

  • Drones
  • UAV platforms
  • Autonomous systems
  • Mission electronics enclosures

Industrial Applications

  • High-performance equipment
  • Sensitive electronics housings
  • Battery enclosures
  • Process control systems

Technical Strength

  • Two-component polyurethane coating system
  • High UV and weather resistance
  • Long-term exterior durability
  • Compatible with epoxy and polyurethane primer systems
  • Multi-process application capability
  • Aerospace-grade coating technology

Compliance & Standards

  • Developed in line with MIL-PRF-85285E performance intent
  • RoHS Compliant
  • REACH Compliant
  • Aerospace-grade polyurethane chemistry

Engineered for Demanding Environments

MIL-PRF-85285E SRC delivers advanced heat management while maintaining durability, reliability, and performance in environments where thermal control directly impacts operational success.

When heat drops, performance rises.

For technical consultation, product data sheets, and application guidance, contact MIL Paints Pvt Ltd.


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