CERT # 2650-01 DuPont TM Weathering Systems Leveraging science to solve your weathering challenge DuPont Weathering Systems South Florida Site 3500 West 9 th Avenue Hialeah Florida, 33012 Phone:305-822-8466 Fax: 305-822-4840 Email: DWSinfo@usa.dupont.com www.weathering.dupont.com
WEATHERING MATERIALS IN SOUTH FLORIDA SINCE 1928 Position Average Yearly Solar Radiation at an incidence angle of 5º South: Average Relative Humidity Average Ambient Temperature Average Yearly Rainfall: 25º 51 N, 80º18 W 6182MJ/m² 84% 24ºC 1650mm ISO/IEC 17025 A2LA Accredited DuPont has run outdoor weathering tests in Hialeah, Florida since 1928, almost 85 years. Hialeah is located in the Miami Area. Samples are exposed under the hot, humid and Sunny climate typically experienced in south Florida. The tip of the Florida peninsula is considered a benchmark climate and the Gold Standard for outdoor weathering tests. Exposures can be performed on virtually anything: finished products, materials, or even raw materials - anything that requires high performance in outdoor environments, such as garden products, automotive coatings, as well as interiors, banners, flags, patio furniture, pond liners, pool covers and construction materials. These tests may be used for new product development and qualification, warranty certification, liability protection or competitive benchmarking.
FULL STAFF AND LABORATORY FACILITIES ONSITE Juan Abreu Operations & Lead Technician 30 years experience David Rousseau Weathering Technician 21 years experience Lesley Jacques- Site Manager 25 years experience in the field Steven Rothschild of weathering test development, and Weathering Technician research into correlation of 5 Years Experience accelerated and outdoor test results Lesley has participated in several test method organizations including ASTM, AATCC, IFAI, SAE, RILEM, ISO and is well published on this subject.
OUTDOOR WEATHERING EXPOSURE APPLICATIONS All outdoor exposures meet the requirements of ASTM G7 Standard Practice for Outdoor Exposure of Organic Materials unless otherwise specified Open Back Exposure: Samples exposed on adjustable standard aluminum racks. Flexible samples can be backed with expanded metal for support without influencing sample temperature. Commonly used angles: Application Angle Textile Architectural Automotive Fenestration & Siding Custom angles 26 45 5 90 0 to 90. Black Box Exposure: The sample is mounted on a rack, which is backed by a matblack painted aluminum box. Sunlight heats the air trapped inside the box, raising the temperature of the samples during the day. The black box can be angled according to customer requirements but is most commonly used at 5 degrees to the horizontal. This test is primarily used for automotive coatings, and other coatings that have to withstand a high-temperature end-use environment. All exposure angles are available as requested. Backed Exposure: Samples exposed on adjustable standard aluminum racks with a backing of untreated plywood The backing produces a higher temperature-testing environment that may be more representative of in use conditions Degrees Farenheit 150 100 50 Surface Temperature of Exposure Panels Clear Sky at Noon 0 Blue White Red Black Sample Colour Black Box Insulated Back Open Back
BEHIND GLASS WEATHERING EXPOSURE APPLICATIONS All under glass outdoor exposures meet the requirements of ASTM G24 Standard Practice for Outdoor Exposure of Organic Materials unless otherwise specified. Exposure Behind Glass: Samples on adjustable standard aluminum racks or on a black box are exposed behind a layer of glass. This type of test is used for products with indoor end-use environments such as draperies, upholstery fabric and interior automobile trim. ASTM G24 specifies single strength window glass. Other standards often require special glasses that are appropriate for simulation of the end-use environment, such as automotive windshield glass. All angles and backings are available. Direct and Under Glass Solar Spectra Comparison 1.200 Ave 26 Behind Glass Ave 26 Direct 1.000 0.800 0.600 0.400 0.200 0.000 286 296 306 316 326 336 346 356 366 376 386 396 406 416 426 436 446 456 466 476 W/Msq 486 Wavelength in nm WHOLE COMPONENT APPLICATIONS Interaction between materials or effects of the manufacturing process can change the durability of a material. Entire component testing is designed to take these variables into account.
ACCELERATED WEATHERING SPD of Various Fluorescent Lamps Measured From the Sample Surface 1.400 1.200 1.000 Irradiance [W/(m² nm)] 0.800 0.600 UVA-340 F40-UVB UVA-351 313nmUVB 0.400 0.200 0.000 250 270 290 310 330 350 370 390 410 430 450 Wavelength [nanometers] Fluorescent UV Accelerated Testing Fluorescent UV Accelerated Weathering offers a cost-effective method for comparison of relative durability of materials. ASTM D904: Standard Practice for Exposure of Adhesive Specimens to Artificial Light ASTM D4329: Standard Practice for Fluorescent UV Exposure of Plastics ASTM D4587: Standard Practice for Fluorescent UV-Condensation Exposures of Paint and Related Coatings ASTM D4674: Standard Practice for Accelerated Testing for Color Stability of Plastics Exposed to Indoor Office Environments ASTM D4799: Standard Practice for Accelerated Weathering and Procedures for Bituminous Materials (Fluorescent UV,Water Spray, and Condensation Method) ASTM D5208: Standard Practice for Fluorescent Ultraviolet (UV) Exposure of Photodegradable Plastics ASTM C1422: Standard Practice for Conducting Tests on Sealants Using Artificial Weathering Apparatus AATCC TM186: Weather Resistance: UV Light and Moisture Exposure GM 9125P: Procedures For Laboratory Accelerated Exposure of Automotive Materials ISO 4892-3: Plastics Method of Exposure to Laboratory Light Sources Part 3: Fluorescent UV Lamps ISO 11507: Paints and Varnishes exposure of Coatings to Artificial Weathering Exposure to Fluorescent UV Lamps and Water JIS-D 0205: Test Method of Weatherability for Automotive Parts SAE-J2020: Accelerated Exposure of Automotive Exterior Materials Using a Fluorescent UV and Condensation Apparatus
EVALUATION AND SERVICES MEASUREMENTS 60º, 20º & 85º Gloss, BYK Benchtop reference Glossmeters Haze Measurement. Distinctness of Image Tricor 807A Range of color scales and measurement geometries, BYK Color Guide or, Xrite MA 100 multi angle. Visual Inspections and evaluations, blistering, cracking, color, dirt & mildew, corrosion etc: Tape Adhesion Tape Chalk Continuous Climatic and sample temperature Monitoring. Multiple report formats, graphics, PDF, Excel, Flat Files, Certified hardcopy. Digital photography Washing, Polishing, Clipping, Masking EXTENDED CAPABILITIES Jacksonville Florida Site: Located on the NE coast of Florida at 030º23 North and 08º34 West, the Jacksonville Site is a major Atlantic port with extensive shipping traffic and local industry. This area has a history of above-average acid rain content and is used as a benchmark for acid rain and industrial environment testing for automotive finishes. Consulting: Determination of exposure requirements, experimental design and data analysis. Dupont Weathering Systems Florida Site 3500 West 9 th Avenue Hialeah, Florida, 33012 Phone: 305-822-8466 Fax: 305-822-4840 Email: DWSinfo@usa.dupont.com Website: weathering.dupont.com Rev. 4/12/11 ** Note: Extended Capabilities are not A2LA Accredited