800 Canterbury Road, Cleveland, OH 44145 USA Telephone: 1-440-835-8700 Fax: 1-440-835-8738 www.q-lab.com

To receive LabNotes electronically, contact labnotes@q-lab.com

Q-Lab Corporation

INFORMATION ON WeATheRINg, LIghT STABILITY AND CORROSION TeSTINg

Issue 2 – 2008

In this Issue:

• Which Accelerated Lab Test Should I Choose?

• University of Dayton Research Institute Test Lab

• Q-Sun B02 Lightfastness Tester Sets the Standard

• Energy and Wavelength: Planck’s Hypothesis

• Accelerating Weathering Using Natural Sunlight

Q-Lab Arizona has converted all its Q-Tracs to Q-Trac II models, with twice the capacity.

Q-Trac II Conversion Doubles Testing Capacity

Accelerated outdoor weathering using the new Q-Trac II Natural Sunlight Concentrator is exclusively available at Q-Lab Weathering Research Service, located 30 miles from Phoenix, Ari-zona. Q-Lab Arizona has now doubled its accelerated outdoor testing capacity by replacing its entire installation of original Q-Tracs with larger Q-Trac II models.

The Q-Trac II operates in the same way and produces the same results as the original Q-Trac. But, because it has two mirror arrays and two target boards, it holds twice the number of specimens. This benefits customers with larger orders and greatly reduces waiting times.

Materials tested on the Q-Trac are exposed to much more concentrated sunlight than those on a conventional outdoor exposure rack. On average, Q-Trac specimens receive the equivalent of five years of Florida sunlight exposure in just one year.

The Q-Trac is useful for testing all types of products including coatings, plastics and reinforced plastics, automotive

The Q-Trac II follows the sun throughout the day. Its fresnel mirror array reflects and concentrates natural sunlight directly onto the test specimens, accelerating outdoor testing.

materials, building materials, textiles, inks, sealants, and geosyn-thetics. Many correlation studies indicate that this test method is particularly useful for coil coatings, powder coatings, automotive coatings, and various plastics. Actual degradation rates can be expected to vary with the material tested.

All Q-Trac tests are performed in accordance with ASTM, ISO or SAE procedures. Evaluation reports are prepared and sent to the customer at the appropriate, predetermined intervals.

See page 7 for information on accelerated outdoor weathering and a special offer on Q-Trac testing.

Q-Lab Arizona Update

Q-Lab Corporation

Using artificial light to test product durability has come a long way since the early part of the 20th century, when someone noticed the bright carbon arc lights from a movie projector faded the curtains around the screen. Today’s accelerated lab testing devices provide technically sophisticated simulations of outdoor and indoor environ-mental conditions. If tests are conducted correctly, the data can be used, in conjunction with data from outdoor exposures, to give a reliable prediction of a material’s performance when exposed to the damaging effects of light, heat and moisture.

There are advantages to creating weather in a machine. It’s much faster than outdoor testing, it gives you control over certain variables, and many standards call for it. The disadvantages are higher costs, technical challenges, and the risk of relying too much on results based on flawed procedures or interpretations.

In the previous issue of LabNotes, my article discussed the importance of outdoor testing. This segment will cover the basics of laboratory accelerated weathering testing.

What is accelerated testing?

Weathering testing in a laboratory attempts to reproduce the universal “Big 3” elements that damage materials – light, heat and moisture – as well as specific elements such as pollutants and microbiological attack. Here are some of the questions to answer when considering accelerated testing:

Light – What light source should I use? Does it match sunlight or the source found in the actual use environment in important spectral regions?

Heat – What temperature to use? How is the heat generated?

Moisture – How much moisture? How is the moisture stress applied?

Pollution – Is pollution a factor in actual use? If so, what pollutants are most important and how are they applied in the accelerated test?

Microbiological effects – Is microbiological attack a problem in actual use? What fungi, algae, or mold is responsible for the damage? Can it survive in the accelerated test conditions?

Two “basic” standards, ASTM G151 and its ISO analogue, ISO 4892-1, describe the essential performance requirements for any device that is used to run artificial accelerated weathering tests.

Types of accelerated testers

Artificial accelerated weathering tests are grouped or classified according to the type of light source used in the test. These light sources are the carbon-arc (enclosed and filtered open flame), fluorescent UV, xenon arc, mercury vapor lamps, and metal halide lamps.

Fluorescent UV and xenon arc lamps are by far the most commonly used light sources for artificial accelerated weathering tests. The carbon-arc light sources have been in use for the longest time, but their use is being phased out primarily because they produce light spectra that are poor simulations of solar radiation.

Which Accelerated Lab Test Should I Choose?

Fluorescent UV weathering testers can use either UV-B lamps with an emission centered around 313 nm or a variety of fluorescent UV-A lamps. The fluorescent UV-B lamps provide the fastest test results for polymer degradation because the light produced is predominantly in the UV-B region. However, because these lamps produce short wave-length UV radiation not found in terrestrial solar radiation, tests based on UV-B lamps may produce degradation reactions that do not occur in the real world or that unrealistically accelerate degradation.

The UVA-340 fluorescent lamp with an emission peak centered at 343 nm was introduced to the market in the mid-1980s and provides an excellent simulation of solar UV radiation from 290 to 350 nm, the wavelengths that produce degradation when materials are exposed outdoors. The UVA-351 lamp is shifted to longer wavelengths and provides an excellent simulation of solar UV radiation that has been filtered by window glass.

ScientificViewpoint

Fluorescent UV lamps are the light source in the QUV weathering tester. For more information on the QUV, circle 200.

Part 2 of a LabNotes exclusive series by Warren D. Ketola

2

Irra

dian

ce (W

/m2 /

nm)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

250 275 300 325 350 375 400Wavelength (nm)

1.4

1.6

1.8

UVA-340 atMaximum Irradiance

Direct Sunlight

UVA-340 at Normal Irradiance

UVA-340 lamps, when operated at an irradiance of 0.68 W/m2/nm at 340 nm, match the intensity of noon, summer sunlight. The Solar Eye irradiance controller allows higher irradiance to accelerate results even further.

The Most Trusted Name in Weathering  

A very important development for tests using fluorescent UV lamps is the introduction of devices that can control irradiance. These devices such as the QUV’s Solar EyeTM Irradiance Controller dramatically reduce irradiance variation caused by lamp aging, device maintenance, or variability in temperature. In addition, they improve irradiance uniformity within the exposure area, and allow for use of higher irradi-ance tests that can shorten test times. ASTM G154 is a basic standard describing testing conducted with fluorescent UV lamps.

Daylight filters are designed to simulate solar radiation seen by materials exposed directly to the sun. Window Glass filters simulate the spectrum of solar radiation filtered by window glass. Extended UV filters allow more short wavelength UV radiation to pass in order to provide faster test results. As with fluorescent UV devices, irradiance control systems in xenon arc devices, such as the Q-Sun’s Solar Eye, compensate for the effects of lamp aging and allow use of higher irradiance tests.

3

Wavelength (nm)

Irra

dian

ce (W

/m2 /n

m)

Window - B/SL

Direct Sunlight

Sunlight Through Window Glass

Daylight - B/B

3.0

0.0

0.5

1.0

1.5

2.0

2.5

250 300 350 400 450 500 550 600 650 700

Q-Sun Daylight filters simulate direct sunlight. Window Glass filters produce spectra equivalent to sunlight coming through window glass.

Temperature and moisture stresses in artificial accelerated weathering tests

Temperatures used in artificial accelerated weathering tests are generally higher than those experienced in actual use. Controlling temperature stresses is critical in laboratory accelerated weathering. Temperature is controlled using either black or white panels that meet criteria defined in ASTM G151 or ISO 4892-1.

BlackPanelThermometer

Solar Eye Sensor

Water Spray Nozzle

Filter

Specimen

Xenon Lamp

Test

Q-Sun Xenon Test CTT hamber Xe-3 Cross-SectionQ-Sun Xe-3 Xenon Test Chamber Cross-Section

Continued on page 4

For more information on Q-Sun xenon testers, circle 700.

Xenon arc lamp devices are intended to simulate the full spectrum of sun-light, including UV, visible light and IR (infrared). ASTM G155 and its ISO analogue, ISO 4892-2, are the basic standards that describes tests conducted using xenon arc devices, and specify the require-ments for three different filters used with xenon arc lamps.

Although high temperatures give faster results, is the temperature realistic? You must balance your desire for speed with the risk of producing unrealistic thermal degradation. In addition, you need to consider how the specimens are heated. In xenon arc exposures, specimens absorb visible and IR radiation emitted by the lamp which increases the temperature. Darker colors absorb more of this radiation so the temperatures of dark colors are higher than those for lighter colored or non-colored specimens.

In fluorescent UV exposures, there is little visible or IR radiation, so the temperature of specimens is increased by heating the air in the chamber, much like you would in an oven. In fluorescent UV exposures, the temperature difference between dark and light colors is small. When comparing durability of materials in fluorescent UV exposures, it is best to compare materials of similar colors.

For many materials, moisture is a very important exposure stress because materials are continuously “wet” for long periods in many outdoor locations. This wetness is caused by dew, not rain, and produces wet times that are often 25-35% of the total time, and can be as much as 50% of the total time in areas such as the southeastern United States.

Most artificial accelerated weathering tests include a moisture stress as part of the test conditions. In xenon arc devices, this is done with water spray. The purity of the water that is sprayed on test specimens is extremely important. In fluorescent UV/condensation devices, exposure cycles are designed to include a dark period where the panels are actually wet with condensation.

Which test should I choose?

The information above indicates that you have many choices to make and options to consider when selecting an accelerated test. To try to sort this out, let’s try to answer some basic questions that might help to you choose your test.

The first question is, “Does my product have to meet a specification”? If it does, the specification itself may tell you what artificial accelerated weathering test that you must use.

The second question is, “What type of equipment do I have available in my laboratory”? The answer to this might limit your options, and if your company has a small lab with few devices that run a single test condition, then this will force you into choosing from one or two tests.

Laboratory Accelerated Weathering

PersonnelProfile

James Gauntner, Q-Lab’s Sales Manager for the U.S. & Canada

James Gauntner is U.S. and Canadian Sales Manager, based at Q-Lab Corporation’s headquarters in Westlake, Ohio. Gauntner also teaches Q-Lab’s technical courses, focus-ing on the science of weathering and light stability, to audiences throughout North and South America.

Jim’s technical, marketing and sales experience in the inks, coat-ings and plastics industries complements his technical expertise in Q-Lab’s weathering products and services. He was regional sales manager for Universal Dynamics, Inc. (plastics processing equipment); product manager for PVC heat stabilizers with Ferro Corporation; and marketing specialist with fluorescent colorants manufacturer Dayglo Color Corp.

His educational background includes a degree in Business Marketing from the University of Cincinnati, and an MBA from Cleveland State University.

Q-Lab Corporation4

Warren Ketola is a noted authority on weathering and a leader in ASTM, ISO, and other standards organizations. He is currently principal of WK Weathering Consulting in St. Paul, Minnesota, after a 37-year career with 3M Commercial Tape and Traffic Safety Systems Divisions. This is his second editorial contribution to LabNotes.

Q-Lab Florida offers accelerated laboratory tests, outdoor tests, and evaluation services. For more information, circle 301.

Continued from page 3

If you are not required by a specification to use a particular test, then it is very important to analyze how your product will be used. This will provide you with clear guidance on what type of artificial accelerated weathering testing might be most appropriate for your product.

“Is my product used outdoors or indoors?” is the first thing you need to ask. If your product is used outdoors, then you will need to use Daylight filters for a xenon arc test or UVA-340 fluorescent lamps for a fluorescent UV exposure. If your product is used indoors, you will need to use Window Glass filters for a xenon arc test or UVA-351 fluorescent lamps for a fluorescent UV test. If your product is used indoors and is exposed only to the light produced by interior fluorescent fixtures, then using the QUV/cwTM fitted with cool white fluorescent lamps would be the most appropriate test.

If your product is used outdoors, how and where is it used? Products intended for outdoor use will be subjected to many different types of climates. In order to provide the most reliable test, you should evaluate the most severe types of climates where your product will be used. Typically, these will be hot/wet climates and hot/dry climates. The type and rate of degradation produced in these climates can be very different, so it might be important to consider tests that try to simulate both. In general, product degradation occurs faster in wetter climates, so if you must choose a single accelerated test condition, try to use one that includes a significant amount of wet time.

In some cases, products may be susceptible to damage by specific pollutants. An example of this is the spotting in automotive clear coats caused by acid rain. In this case, you will want to consider incorporating this type of stress into the test you choose.

Another major area to consider when selecting an artificial acceler-ated test is the type of degradation that is most important to your product. Are you most concerned about maintaining the integrity of the surface that is exposed? Are you most concerned about retention of a physical property such as tensile or impact strength? If the answers to these questions are “yes”, then either the xenon arc or fluorescent UV exposures could be used. If color stability is the primary concern about the durability of your product, then you need to use a xenon arc exposure because color fading or shifting is primarily caused by visible light.

Suppose your laboratory does not have any artificial accelerated weathering test capabilities. Then you must either purchase a device or use an independent test lab to run the tests that you choose. If you are purchasing, your capital purchase budget will dictate that type and/or size of the device that you choose. Generally, fluorescent UV exposure devices require a smaller capital investment than xenon arc devices (and are usually less expensive to operate). If you are selecting a xenon arc device, you need to consider whether you want to purchase one large-capacity device or perhaps several smaller capacity devices that will allow you to run several different test conditions.

If you are going to have your tests run by an independent lab, you will need to consider what types of tests are provided and whether the independent lab is accredited according to ISO Guide 17025 or similar accrediting standard. In addition, you will need to consider whether you want the independent test lab to do both the exposure testing and the evaluation tests, or just the exposure tests. Finally, I recommend that you use an independent lab that can run both artificial accelerated tests and outdoor tests. This way, you can have the same lab conduct the artificial accelerated tests and the even more important outdoor exposures.

Ultimately, you must still answer the question, “Which test should I choose”? Going through the process described above will provide some basic answers, but you are still left with deciding on the specific test conditions. This will be addressed in the next part of the series.

The University of Dayton Research Institute (UDRI), located in Dayton, Ohio, has been actively involved in coatings research for more than 35 years.

UDRI Coatings Group Laboratory Manager Ken Chitwood notes that over the last 14 years, more than 30 Q-Suns, QUVs, Q-Fogs, MTGs and other special equipment have been used by the university for:

University of Dayton Research Institute Gives Q-Lab Testers Top Grades

The Most Trusted Name in Weathering   5

SuccessStory

Ann “Gibby” Dombroskie, Chief Technician, moves specimens for salt fog corrosion testing in one of UDRI’s eight Q-Fog test chambers, shown at right in a closed position.

ASTM B117 - Standard Test Method of Salt Spray (Fog) Testing

ASTM G85, Annex 5 - Standard Practice for Modified Salt Spray Testing

ASTM G53 - Practice for Operating Light- and Water-Exposure for Nonmetallic Materials

ASTM D968 - Abrasion Resistance of Organic Coatings/Falling Sand Tester

ASTM G155 - Standard Practice for Operating Xenon Arc Light Exposure of Non-Metallic Materials

ASTM D2247 - Testing Water Resistance of Coatings in 100% Relative Humidity

GM4465P - Humidity Test

ASTM D3170-01 - Standard Test for Chipping Resistance of Coatings

GM9540P - Accelerated Corrosion Test

•

•

•

•

•

•

•

•

•For more information on the Q-Fog, circle 401. Contact Valerie Quinn at UDRI, 937-255-0955.

and other products used on aircraft, structures, containment systems, and other aerospace ground equipment.

The ISO 17025-certified Coatings Group lab is presently using several types of Q-Lab devices to test experimental composite samples, concrete siding, concrete protection, advanced materials, and runway coatings, just to name a few.

Chitwood adds, “With the ease of equipment use, the labor to operate and maintain the equipment has decreased significantly and allows for other lab operations. Following the equipment manual’s maintenance procedures, the reliability of the equipment is far superior to the equipment we previously owned.”

The UDRI Coatings Group acts as an inde-pendent test facility which contracts with customers to prepare, test and evaluate coat-ings. A major part of their work is testing the performance of primers, topcoats, strippers,

For a copy of the new Q-Sun B02 brochure and specifications sheet, circle 736.

Q-Sun B02 is the New Standard in Lightfastness TestingThe new rotating rack Q-Sun Model B02 xenon tester is designed specifically to be an affordable lightfastness tester that meets the requirements of ISO and AATCC. In addition, its capacity is 48% to 92% larger than comparable xenon testers.

Introduced at ITMA Germany 2007, the latest model of Q-Sun xenon tester provides precise control of critical textile test parameters. These include spectrum, irradiance, relative humidity, chamber temperature and black standard temperature.

Even smaller textile labs now will find fully automatic, xenon lightfastness testing affordable with the less costly Q-Sun B02. All of the features and hardware you need – from irradiance control to specimen holders – come standard, at no extra cost.

Mounting textile specimens in the Q-Sun B02 xenon lightfastness tester is fast and easy.

By Martin O. Patton

Different wavelengths do different things. In accelerated weathering tests, different light source and optical filter combinations are used to generate light in specific wavelength ranges since the wavelength of the light is the factor that determines which light-induced changes will occur in a particular material.

In 1901, Max Planck published two important papers1,2 that opened a new age of discovery in physics and paved the way for later workers in quantum mechanics.

Planck proposed that the energy and frequency of the quanta must be related as E=hν. E is a symbol for energy in units of Joules (J). Planck’s constant is represented by the letter h, and is a very small number

Q-Lab Corporation6

Energy and Wavelength: Planck’s Hypothesis

Figure 1. Energy in electron volts of quanta at wavelengths from 300 to 1200 nanometers.

Energy and Wavelength

0

1

2

3

4

5

300 400 500 600 700 800 900 1000 1100 1200

(nm)

E (e

V)

Martin Patton is Q-Lab’s Client Education Specialist and chief photographer, taking many of the pictures published in LabNotes. He was formerly a Senior Research Engineer with the NASA Glenn Research Center in Cleveland.

Learn more about sunlight, light stability and weathering with this SPD Poster (circle 108).

Redesigned Website Is More User-Friendly

Q-Lab’s recent website redesign follows the same principle as our product design: Simplicity is the ultimate sophistication.

Users wil l benefit from the site’s improved functionality to find information faster, get product details, or subscribe to LabNotes. The site is currently published in English, Spanish and Chinese.

of Joules times seconds (J*s). Frequency is represented by the Greek letter nu (ν). For electromagnetic radiation, ν is equal to the speed of light (c) divided by wavelength. The Greek letter lambda (λ) is the symbol for wavelength. With the letters defined that way, Planck’s relationship can be written as E=hc/λ.

Figure 1 plots E and λ from 300 to 1200 nm. The quanta have very tiny amounts of energy and sometime the energy is expressed in a tiny unit called the electron volt (eV). One eV is just 1.6*10-19 Joules of energy. This all adds up two conclusions: A quanta at 300 nm has about four times as much energy as a quanta at 1200 nm, and the difference

between one quanta and the next quanta is a multiple of h (Planck’s constant).

At 300 nm, the energy of a quantum of UV light is above 4 eV, high enough to cause ionization and to initiate chemical reactions in some materials. At 1200 nm, the IR energy is much lower, near 1 eV. Although it is not high enough to cause ionization, IR light has enough energy to cause changes in the bonds between molecules and is absorbed by electrons in many materials as heat. In the middle is visible light, which is responsible for our vision and other important chemical processes like photosynthesis.

One of the first to apply the ideas of Max Planck was Albert Einstein. Einstein’s famous paper3 on the photo-electric effect refers to and builds upon Planck’s work.

1.“Law of Energy Distribution in Normal Spectra”, Max Planck, Annalen der Physik vol. 4, p. 553 (1901)

2. “On the Elementary Quanta of Matter and Electricity”, Max Planck, Annalen der Physik vol. 4, p. 564 (1901)

3.“On a Heuristic Point of View About the Creation and Conversion of Light”, A. Einstein, Annalen der Physik vol. 17 p.132 (1905)

4. Numerical values for physical constants can be found on the internet at http://physics.nist.gov/cuu/Constants/index.html

The Most Trusted Name in Weathering   7

The Q-Trac produces approximately 1420 MJ/m2 TUV annually.

That is five times more UV than a year of Florida exposure.

Free Q-Trac Testing Offer

Sunlight to Mirrors

Sunlight to Mirrors

Mirror Bed

AirCooling

Duct

Refle

cted

Sun

light

to S

ampl

es

Test Samples

Accelerated Weathering Using Natural Sunlight

For a limited time, Q-Lab Weathering Research Service is offering free introductory testing on the Q-Trac. Customers starting a Q-Trac test for the first time can receive half of the exposure free (up to one year Florida UV equivalent exposure).

The Q-Trac is a fresnel concentrator designed

with a 6º field of view, to ensure that only direct

beam sunlight is reflected onto the target board.

MorningNoon

Afternoon

The Q-Trac continuously tracks the sun daily from east to west

and automatically makes seasonal adjustments. Photoreceptor

cells control these swivel and tilt movements, keeping the device

in perfect focus with the sun.

Sometimes you can’t wait months or years to find out how well your products will perform outdoors. If you need fast answers, but don’t want to use an accel-erated laboratory tester, the Q-Trac Natural Sunlight Concentrator may be the solution.

The Q-Trac accelerates outdoor weathering results by tracking the sun and using mirrors to concentrate natural sunlight onto test specimens. It typically produces 1420 MJ/m2 TUV on an annual basis. Specimens tested on the Q-Trac (avail-able only at Q-Lab Arizona) may be exposed to five times the UV of a standard 1-year Florida exposure.

DataPoint

Concentrating Natural Sunlight. The Q-Trac uses a series of 10 flat mirrors (a fresnel array) to produce the effect of a single, larger curved mirror. As sunlight strikes the mirrors, it is reflected and concentrated onto specimens mounted on the target board.

Following the Sun. The Q-Trac is a dual-axis device that tracks the sun’s movements throughout the day, as well as automatically adjusting for seasonal changes. From sunrise until nightfall, your specimens are exposed to the maximum amount of sunlight.

Clear Sunny Days in Arizona. The Q-Trac concentrates only direct beam sunlight, not diffuse or scattered sunlight. Q-Trac testing requires long, cloudless days with a low percentage of atmospheric moisture. These conditions are found in desert arid climates, such as Arizona.

Visit www.q-lab.com to download your free Q-Trac Testing Coupon.

The new Q-Trac II is one unit with two separate

fresnel concentrator/target board systems.

For your free Q-Trac poster and technical bulletin, circle 318.

The Most Trusted Name In WeatheringFlorida • Arizona • Natural • Accelerated-Lab Weathering Research Service

Standardized Test Panels

The World Standard

For over 50 years, Q-Panel brand test substrates have

been recognized as the world standard for a consistent

and uniform test surface.

Thousands of labs use millions of our steel and aluminum

panels every year for color development, weathering

exposures, salt spray and corrosion testing, physical

properties testing and quality control. A wide range of

panel sizes and types are available for immediate

shipment from stock.

Panel Handling & Storage Tips

Standard panels are available in a range of sizes and finishes.

Panels should be handled as little as possible.

Always grasp them by the edges, to avoid finger-

prints or smudging, and use clean white gloves

whenever possible.

In most cases the panels can be used right out of

the box. However, for some critical applications

it may be necessary to remove traces of the rust

inhibitor with a distilled water or MEK wipe prior to

coating the panel.

Inventory panels in their original packaging in a dry,

climate controlled area with minimal exposure to

water, excessive dust, or pollution.

Handle panels carefully

at all stages of their

use, from unpacking

new substrates to

moving specimens

during testing.

Steel and Aluminum Test Substrates

Q-Panel brand test substrates from Q-Lab minimize

metal variability as a source of bias in critical tests. They

are clean, consistent, convenient, and economical. Your

satisfaction is guaranteed.

CleanThe production process thoroughly cleans panels and

removes any oil from the surface. Minimal handling

assures that all panels are completely clean when they

are packaged.

ConsistentThree factors assure consistent quality at low cost:

• Volume metal purchasing from selected mills.

• Automated production on a high-speed line.

• Rigorous inspection at several processing stages.

•

•

•

ConvenientPanels are supplied pre-cleaned, with a ¼” (6 mm)

Q-shaped hole. For safety and ease of handling, the

panels have rounded corners and deburred edges. Steel

panels are packed in plastic with a vapor phase rust

inhibitor, inside a sturdy cardboard carton, for a shelf life

of up to 10 years.

EconomicalBecause of high volume production, our panels cost less

than you might expect for a standardized surface.

Purchasing clean, safe, standardized panels reduces the

time lab personnel must spend cleaning and handling

panels.

Panels are stored completely clean and, in most cases, can be

used right out of the box.

TECHNICAL INFORMATION

Email your request, or circle the number(s) below and fax or mail this form to our corporate

office (USA) or Q-Lab Europe. Contact Q-Lab China for information in Chinese.

Q-Lab (USA): info@q-lab.com Fax +1-440-835-8738

Q-Lab Europe: info.eu@q-lab.com Fax +44 (0) 1204-861617

Name ________________________________________________________________________________________

Company _____________________________________________________________________________________

Address ______________________________________________________________________________________

City___________________________________________________________________________________________

State/Province_________________________________________________________________________________

Country _______________________________________________________________________________________

Zip or Postal Code _____________________________________________________________________________

Telephone _____________________________________________________________________________________

Fax ___________________________________________________________________________________________

Email _________________________________________________________________________________________

Industry _______________________________________________________________________________________

Product _______________________________________________________________________________________

Please print:

Issue 2 - 2008

©2008Q-LabCorporation

Q-Panel,QUV,Q-Lab,Q-Sun,Q-Fog,Q-TracandSolarEyearetrademarksofQ-LabCorporation.

Q-Lab Headquarters & Instruments Division800CanterburyRoadWestlake,OhioUSATel.+1-440-835-8700Fax+1-440-835-8738

Q-Lab Europe, Ltd.ExpressTradingEstateStoneHillRoad,FarnworthBoltonBL49TPEnglandTel.+44(0)1204-861616Fax+44(0)1204-861617

Weathering Research ServiceQ-Lab Florida Q-Lab Arizona1005SW18thAvenue 24742W.DurangoStreetHomestead,FloridaUSA Buckeye,ArizonaUSATel.+1-305-245-5600 Tel.+1-623-386-5140Fax+1-305-245-5656 Fax+1-623-386-5143

美国Q-Lab公司中国代表处 中国上海市共和新路3388号永鼎大厦1001室邮编：200436电话：+86-21-58797970,+86-21-56030380传真：+86-21-58797960

Q-Lab Corporation

401 Q-Fog Corrosion Tester

502 Q-Panel Brand Test Substrates

700 Q-Sun Xenon Test Chambers

736 Q-Sun B02 Lightfastness Tester

www.q-lab.com

The World’s

Standard Substrate

for Over 50 Years

• Clean

• Consistent

• Convenient

Q-Lab Corporationinfo@q-lab.comQ-Lab Europe, Ltd.info.eu@q-lab.com www.q-lab.com

Special panels also available

Look for the Q-shaped hole. It is our trademark, and your

assurance of quality.

Circle 502 to learn more about Q-Panel Brand

Test Substrates

Request Technical Information

To receive free information about Q-Lab’s products and services, fill out and return the form below. Call, fax or email today!

108 SPD Wall Poster

200 QUV Weathering Tester

301 Q-Lab Weathering Research Service

318 Q-Trac Poster & Technical Bulletin