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PHOTODEGRADATION & WEATHERING LAB
UV Weathering Test (Fluorescent Method)
ISO 4892-3 · IEC 60068-2-5 · MIL-STD-810G OR H (METHOD 505.7)
ACCELERATED FLUORESCENT UV LIGHT, MOISTURE & CONDENSATION TESTING
UV CHAMBER
STATUS
UVA / UVB
CAPABILITY
280nm – 400nm
OPERATIONAL
UV LAB SPECS
280–400 nm
UVA & UVB
SPECTRUM RANGE
Ambient to 70°C
CONTROLLED
TEMPERATURE
≥75% RH
RELATIVE HUMIDITY
& WATER SPRAY
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ACCELERATED MATERIAL AGING
UV Weathering Test (Fluorescent Method)
Ultraviolet (UV) weathering tests are essential for assessing the long-term durability and performance of polymer-based materials when exposed to sunlight and other environmental factors. The Fluorescent UV Weathering Test simulates accelerated aging by exposing materials to cycles of UV light, moisture (in the form of condensation or water spray), temperature, and humidity. This method is widely recognized in industries such as automotive, construction, aerospace, packaging, and consumer products for evaluating material stability and life expectancy.
Purpose and Applications
The UV weathering test is designed to simulate the damaging effects of prolonged sunlight exposure in a controlled, accelerated laboratory setting. The key objectives of this testing include:- Color Stability: Evaluating fading, discoloration, and yellowing of materials and coatings.
- Mechanical Integrity: Assessing changes in tensile strength, flexibility, and impact resistance due to UV degradation.
- Surface Properties: Identifying brittleness, chalking, cracking, or other surface defects.
- Material Compatibility: Ensuring that composite or multi-material assemblies do not degrade unevenly under UV exposure.
- Product Lifespan Prediction: Supporting R&D and quality control efforts by predicting how long a product will last in real-world conditions.
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SIMULATION CAPABILITIES & PARAMETERS
Environmental Simulation Capabilities & Parameters Simulated
Our lab uses fluorescent UV light chambers that simulate short- and long-wave UV radiation using UVA and UVB lamps. The test chambers can also introduce moisture through condensation or spray, and vary both temperature and humidity to accelerate the aging process.
SPECTRUM RANGES
UV Light Exposure
UVA Range: 313 nm to 400 nm (primarily simulates exposure behind window glass or indirect sunlight)UVB Range: 280 nm to 400 nm (used to simulate more aggressive, outdoor UV conditions)
CHAMBER CONTROLS
Temperature & Relative Humidity
Temperature Range: Ambient to 70°CRelative Humidity (RH): ≥75%, simulating tropical or humid environmental conditions
ACCELERATION CYCLES
Moisture Exposure & Light Intensity
Moisture Exposure: Periodic water spray or condensation to mimic morning dew, rain, or high-humidity environmentsLight Intensity & Duration: Adjustable to replicate months or years of outdoor exposure in a fraction of the time
INDOOR & CABIN SIMULATION
Special UV Filters
Special UV filters can be applied to replicate indoor light conditions, such as exposure behind window glass, which is important for evaluating materials used in interiors, furniture, or automotive cabins.
STANDARDS FOLLOWED:
ISO 4892-3
IEC 60068-2-5
MIL-STD-810G or H (Method 505.7)
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TYPICAL USE CASES
Typical Use Cases
AUTOMOTIVE
Automotive Plastics
Automotive plastics, dashboard components, and exterior trims
CONSTRUCTION
Building & Construction Materials
Building and construction materials such as PVC, roofing membranes, sealants, and coatings
OUTDOOR & LEISURE
Outdoor Equipment
Outdoor furniture, signage, and recreational equipment
PACKAGING
Packaging Materials
Packaging materials exposed to store lighting or sunlight
AEROSPACE
Aerospace Interiors
Aerospace interiors and composite structures
CONSUMER PRODUCTS
Consumer Goods
Consumer goods like eyewear, sports equipment, and electronics casings
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