DuPont TM Weathering Systems “Leveraging science to solve your weathering challenge”

CERT # 2650-01

DDuuPPoonntt WWeeaatthheerriinngg SSyysstteemmss South Florida Site 3500 West 9th 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

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.

Position

25º 51’ N, 80º18’ W

Average Yearly Solar Radiation at an incidence angle of 5º South:

6182MJ/m²

Average Relative Humidity

84%

Average Ambient Temperature

24ºC

Average Yearly Rainfall:

1650mm

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 mat- black 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

Surface Temperature of Exposure Panels Clear Sky at Noon

0

50

100

150

Blue White Red Black

Sample Colour

Deg

rees

Far

enhe

it

Black Box

Insulated Back

Open Back

Direct and Under Glass Solar SpectraComparison

0.000

0.200

0.400

0.600

0.800

1.000

1.200

286

296

306

316

326

336

346

356

366

376

386

396

406

416

426

436

446

456

466

476

486

Wavelength in nm

W/M

sq

Ave 26 Behind GlassAve 26 Direct

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.

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.

SPD of Various Fluorescent Lamps Measured From the Sample Surface

0.000

0.200

0.400

0.600

0.800

1.000

1.200

1.400

250 270 290 310 330 350 370 390 410 430 450

Wavelength [nanometers]

Irrad

ianc

e [W

/(m²·n

m)]

UVA-340 F40-UVBUVA-351313nmUVB

ACCELERATED WEATHERING

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 9th 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