Infrared (IR) Reflective Heat Reflective Powder coating
We are a manufacturer based in China, specializing in high-quality Infrared (IR) Reflective Heat Reflective Powder coating for industrial clients worldwide. Technical support and custom formulation available.
Category：Special powder coatings | Brand：MT
Introduction
Infrared (IR) reflective powder coating is a high-performance finish engineered to reflect a large share of solar infrared radiation instead of absorbing it. By keeping coated surfaces significantly cooler under direct sunlight, it reduces heat buildup, improves indoor comfort, lowers cooling energy costs, and extends the service life of both the coating and the substrate — making it an ideal solution for exterior aluminium curtain walls, roofing systems, industrial equipment, and vehicle surfaces.
Infrared radiation accounts for approximately 52% of solar energy. Using specialised IR-reflective pigments and binder systems, this coating keeps surface temperatures close to ambient air temperature — supporting energy-efficient buildings and more comfortable vehicles and equipment even in intense sunlight.
1. Applications
Architectural & Construction
External cladding, curtain wall panels, aluminium and galvanised steel roofing, window frames, industrial doors, and metal sunshades.
Transportation
Metal body panels and exposed exterior parts of cars, trains, and buses — minimising cabin heat buildup, improving comfort, and reducing air-conditioning load.
Commercial & Industrial
Metal cabinets and shelving, storage systems, and outdoor metal furniture and fittings exposed to direct sunlight.
2. Built for Steel and Aluminium Substrates
✓Resistant to Metal Corrosion
When properly bonded to pre-treated steel or aluminium, the coating blocks moisture, salt, and airborne pollutants from reaching the metal underneath.
✓Effective Thermal Insulation
Reflecting solar infrared before it is absorbed, the coating keeps exterior surfaces noticeably cooler — improving interior comfort and reducing cooling loads.
✓Tailored to the Substrate
Pre-treatment, powder formulation, and film thickness are tailored to steel, aluminium, or galvanised steel, ensuring reliable adhesion and long-term durability.
3. Product Parameters
3.1 Powder Characteristics
| Item | Specification |
|---|---|
| Appearance | Smooth and uniform finish (fine texture available, depending on gloss range) |
| Gloss | 10–90 GU at 60° (custom gloss on request) |
| Coverage Rate | 8–12 m²/kg at 80 μm film thickness (varies with specific gravity) |
| Specific Gravity | 1.2–1.7 g/cm³ (depending on colour and gloss) |
| Particle Size | Average 32–40 μm |
| Volatiles | ≤ 1% (maximum) |
| Storage | 12 months in a dry, ventilated room below 30°C, away from direct sunlight |
3.2 Test Conditions
| Condition | Detail |
|---|---|
| Test Panel | Cold-rolled steel SAE 1008/1010, 0.8 mm thick |
| Pre-treatment | Iron phosphate conversion |
| Coating Thickness | 80 μm |
| Curing Schedule | 200°C for 10 minutes (substrate temperature) |
| Testing | Conducted 24 hours after curing |
3.3 Physical Properties
| Test | Test Standard | Result |
|---|---|---|
| Pencil Hardness* | ISO 15184 / ASTM D3363 | 2H |
| Adhesion (Cross-Cut) | ISO 2409 | Class 0 / 5B |
| Impact Resistance | ASTM D2794 | Pass (direct and reverse) |
| Bend Test | ISO 1519 | ≤ 3 mm |
| Cupping Test | ISO 1520 | ≥ 6 mm |
* The hardness test is performed with Mitsubishi pencils.
3.4 Chemical and Durability Properties
| Test | Test Standard | Result |
|---|---|---|
| Humidity Resistance | ISO 6270-2 (CH), 1,000 h | No blistering, no loss of adhesion |
| Acid Resistance | ISO 2812-1 (HCl 10%) / ASTM D1308 | No effect |
| Alkali Resistance | ISO 2812-1 (NaOH 10%) | No effect |
| Solvent Resistance (MEK) | ASTM D5402 | ≥ 100 double rubs |
3.5 Corrosion Resistance
| Test | Test Standard | Result |
|---|---|---|
| Salt Spray | ISO 9227 (NSS), 1,000 h | No blisters; single-side creepage from the scribe line ≤ 2 mm |
| Filiform Corrosion | ISO 4628-10 | Filament growth ≤ 1 mm |
(1) The above results were obtained on iron-phosphate pre-treated cold-rolled steel panels under controlled laboratory conditions. Actual performance depends on the pre-treatment, substrate, application process, and service environment.
(2) Test standards may be replaced by equivalent standards agreed between the parties.
3.6 Application Parameters
Spray Voltage
40–90 kV (depending on the workpiece shape and equipment)
Atomisation Air Pressure
1.0–2.5 bar (depending on the spray equipment)
Dosing Air Pressure
0.5–1.5 bar (depending on the powder feed system)
Recommended film thickness: 60–80 μm. Settings may need to be adjusted according to the equipment and workpiece geometry.
3.7 Damage Repair
Small Areas
Repair with a compatible touch-up coating. Clean and dry the damaged area thoroughly and follow the coating instructions.
Larger Areas
Recoat with the same powder. Remove the damaged coating and any contaminants, pre-treat the surface, and re-apply and cure the powder as specified.
4. Key Features and Specifications
| Feature | Specification |
|---|---|
| Solar Infrared Reflectance | Reflects more than 90% of solar infrared radiation in the 800–2500 nm band |
| Surface Temperature Reduction | 10–15°C lower than conventional coatings in direct sunlight |
| Thermal Stability | Coating remains intact at temperatures up to 200°C |
| Surface Temperature under Solar Radiation | No more than 5°C above ambient air temperature |
5. Features
1Reduces Surface Temperatures
Reflects solar infrared radiation, keeping coated surfaces noticeably cooler under direct sunlight.
2Enhances Energy Efficiency
Less heat transfer into buildings and vehicles means lower air-conditioning loads and reduced cooling costs.
3Extends Coating and Substrate Life
Lower thermal stress slows ageing of the coating and protects the metal substrate from heat-related degradation.
4Supports Sustainability Goals
As a solvent-free powder coating with low VOC emissions, it helps reduce energy consumption and environmental impact.
5Compatible with Various Coating Systems
Can be applied as a single coat or integrated into multi-layer systems alongside primers and topcoats.
6Low Maintenance
Durable and colour-stable, retaining its appearance and reflectivity with minimal upkeep over the years.
Coating curtain walls, roofing, or vehicle exteriors that heat up in the sun? Tell us your substrate, colour, and target surface temperature — we will recommend the right IR reflective series and quote within one business day.
Simply fill in the form below, and our engineering team will get back to you with a tailored solution.
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