The RARE paint difference

Structural Composition

Utilizes advanced nano-particle materials combined with specially selected polymer structures, integrated with particles capable of reflecting solar radiation and delivering strong thermal emissivity

Mainly uses conventional Acrylic/Polymer resins combined with reflective pigments such as Titanium Dioxide (TiO₂) and hollow ceramic microspheres

Operating Mechanism

Simultaneously reflects solar heat and actively radiates heat outward into outer space

Only reflects part of the sunlight and provides thermal insulation (slowing heat transfer into the building)

Cooling Principle

Active two-way cooling

Passive cooling

Heat Reflection Capability

From 94.6% to 98%

Approximately 80% – 85%

Reflected Wavelength Range

Reflects across a broad spectrum from approximately 0.3 – 3 µm, including the visible light range of 0.3 – 0.7 µm and thermal infrared range of 0.7 – 3 µm

Narrower range, mainly concentrated in the near-infrared region around 1 µm.

Thermal Radiation Mechanism

Up to 99%. RARE paint converts accumulated heat into far-infrared radiation and dissipates it directly outward through the “atmospheric window” (8–14 µm wavelength), enabling the material surface to cool itself actively.

None

Roof Surface Temperature Reduction Capability

Reduces temperature by 10°C – 40°C; the higher the outdoor temperature, the stronger the cooling performance

Reduces temperature by approximately 10°C – 25°C; however, the roof surface still accumulates heat and remains hot after prolonged heat absorption

Indoor Air Temperature Reduction Capability

Reduces indoor air temperature by approximately 7°C – 15°C under hot weather conditions with outdoor temperatures above 35°C

Reduces indoor air temperature by approximately 3°C – 5°C; however, heat still accumulates indoors and remains trapped during subsequent hot days.

Nighttime Cooling Capability

Thanks to its continuous thermal radiation mechanism, the coating helps the building cool itself both day and night, while also “refreshing” the entire structure after a full day of heat absorption and maintaining a comfortable cool feeling until the next morning.

None. After the surface has absorbed heat throughout the day, the paint layer continues to retain and radiate heat into the building, causing the indoor space to remain hot at night

Heat Accumulation

Minimal to no heat buildup

Continues to absorb UV and thermal infrared radiation, resulting in heat buildup on both the surface and within the building structure

Indoor Comfort Level

Cool and comfortable, with a thermal sensation similar to being in the shade

Reduced heat sensation, but the indoor environment still feels stuffy and thermally uncomfortable

Power Saving Capability

Saves at least 30% of cooling electricity costs

Limited effectiveness

Self-Cleaning Capability

Nano SkyActive self-cleaning technology activated by rainwater, maintaining high solar reflectance for many years

Easily accumulates dust, reducing performance over time

Durability of Heat-Reduction Performance

Maintains long-term reflective performance

 Heat-reduction effectiveness gradually declines as the surface accumulates dust or undergoes prolonged heat absorption

UV Resistance

Superior UV resistance

Moderate

Rust, Waterproofing, Alkali, and Salt Resistance

Superior protection

Limited protection effectiveness

Structural Service Life

Over 10 years

Prone to deterioration after 2–3 years

Environmental Impact

Effectively reduces the urban heat island effect by minimizing heat accumulation, lowering heat emission to the surrounding environment, saving energy, and reducing CO₂ emissions

Not fully optimized; the surface still absorbs and accumulates heat, then continues releasing it into the surrounding environment, contributing to the urban heat island effect