OUTDOOR WEATHER EXPOSURE TESTING
Q-LAB WEATHERING TESTS
Want to test the durability of your products under extreme weather, but prefer not to pay for an expensive machine?
As an authorised distributor of Q-Lab weathering test machines in Singapore, Indonesia, and Philippines, Maha offers durability tests for weathering, lightfastness, and corrosion.
EXTREME WEATHER CONDITIONS
Our Q-Lab test machine can replicate high-intensity sunlight, high annual UV, high year-round temperatures, abundant rainfall, and very high humidity.
The synergistic effect of UV, moisture and heat makes it the ideal location for testing durability of materials in outdoor environments.
Direct exposures are used to test many exterior-use materials, such as industrial coatings. Specimens are securely mounted with their front surface facing the sun. Different exposure angles and mounting methods are used for different applications.
These exposures are used to test interior-use materials, such as textiles and printing inks. Specimens are behind 3 mm window glass which will filter out short-wave UV. Exposures are typically at 45º.
These tests reproduce conditions found on the horizontal surfaces of a vehicle, including higher temperatures and wet times. Under glass black box exposures are used to test interior automotive materials.
These under glass exposures simulate the environment inside an automobile and are suitable for mounting larger components like dashboards. Some AIM boxes feature solar tracking.
Direct exposures with salt spray can produce fast and realistic corrosion, particularly for coated metals.
In this exposure, panels are typically positioned at a 90º north to reduce sunlight, decrease surface temperatures, and increase moisture. In addition, specimens may be placed near or under vegetation to promote growth.
Conventional and accelerated natural exposure testing are both an essential part of any weathering and light stability test program. Material scientists often use “Florida Weathering” or “Arizona Weathering” as international benchmarks for material weatherability testing.
Material durability testing is important in numerous industries including: additives and colorants, adhesive and sealants, automotive, building materials (such as roofing and siding), fabrics/textiles, food and beverages, graphic arts/inks, paints and coatings, pharmaceuticals and cosmetics, plastics and packaging, and renewable energy (such as solar).
It is especially useful for certain types of testing including:
- Color change, fading, and gloss loss
- Cracking, peeling, chalking, and blistering
- Mechanical strength loss and physical deterioration
- Moisture sensitivity of products like coatings, building materials, and some plastics
- Biodegradation, including mold, mildew, fungus, and algae
- Accelerated corrosion testing
- Thermal expansion effects and CTE mismatches
- Maximum service temperature studies
- Cracking, warping and heat aging of automotive components and signage