meet the standard

GB/T 14522-93 ； ASTM G 154,ISO 4892-1； ISO 11507 ； ASTMD 4329

Product Usage

The TL-UV series UV weather resistant box can simulate the hazards caused by sunlight, rainwater, and dew. UV uses fluorescent UV lamps to simulate the effect of sunlight exposure, and uses condensed moisture to simulate rainwater and dew. The tested material is placed in a cyclic program of alternating light and moisture at a certain temperature for testing. UV exposure can reproduce the hazards that occur outdoors for months to years in a matter of days or weeks. The types of hazards include fading, discoloration, loss of light, powdering, cracking, turbidity, bubbles, brittleness, strength degradation, and oxidation. UV test data can help you select new materials and evaluate how changes in formulation affect the durability of new products.

Widely used in coatings, inks, paints, resins, plastics, rubber, printing and packaging, aluminum profiles, adhesives, automotive and motorcycle industries, cosmetics, metals, electronics, electroplating, pharmaceuticals, etc.

Test structure

1. The structure of the test chamber is made of corrosion-resistant SUS304, including 8 UVA ultraviolet lamps, test sample racks, control systems, and indicators.

2. The lamp power is 40W and the lamp length is 1200mm. The range of the uniform working area of the test box is 900mm * 500mm.

3. The lamp tube is installed parallel to the top of the box, with a center distance of 70mm.

4. The test sample is placed on the test stand, with the back of the sample exposed to room temperature air and not exposed to ultraviolet radiation.

5. The test chamber should be placed in a test room with a temperature of 15-35 ℃, 300mm away from the wall, and should be protected from the influence of other heat sources. The air in the laboratory should not circulate strongly to avoid affecting the lighting conditions.

Test conditions

1. The fixed device for the test sample is placed on the test stand, facing the ultraviolet lamp.

2. The service life of each lamp tube is around 1600H.

Test samples and performance evaluation

1. Appearance evaluation: The main evaluation for coatings is appearance evaluation, and plastic and rubber can also be evaluated for appearance when necessary. The inspection items mainly include gloss, color change, spots, stability, etc. Quantitative item testing should be carried out using instruments as much as possible, such as gloss and colorimeter.

2. Evaluation of mechanical and other properties: Generally, rubber materials are measured for tensile strength, elongation, hardness, plastic impact strength, elongation at break, tensile strength, bending strength, and other performance testing items may be specified if necessary.