Temperature Effects in Artificial and Natural Weathering

The surface temperature of a material exposed to natural sunlight or to artificial Xenon-arc radiation is critical for its degradation behavior. In this webinar we present how surface temperatures can be measured in weathering setups and which test parameters will influence the surface temperature. We will show models and examples how the surface temperature influences the degradation process.

The surface temperature of a material exposed to natural sunlight or to artificial Xenon-arc radiation is critical for its degradation behavior. In this webinar we present how surface temperatures can be measured in weathering setups and which test parameters will influence the surface temperature. We will show models and examples how the surface temperature influences the degradation process.

Test Method Development

Solar radiation, heat, and water are acting synergistically on materials and components, causing ageing processes and ultimately product failure. Accelerated weathering instruments simulate and control these primary weather factors.

This seminar explains how to develop a realistic, precise, and correlating accelerated weathering test method. The starting point is always the end-use environment, from which worst case conditions are derived, which are then translated into test parameters. ASTM D7869 is a recent example of such test method development.

Often, multiple laboratory and outdoor weathering tests are combined into a “test program” that includes materials, components, and the final product. Examples from the automotive and PV industries will be discussed.

Solar radiation, heat, and water are acting synergistically on materials and components, causing ageing processes and ultimately product failure. Accelerated weathering instruments simulate and control these primary weather factors.

This seminar explains how to develop a realistic, precise, and correlating accelerated weathering test method. The starting point is always the end-use environment, from which worst case conditions are derived, which are then translated into test parameters. ASTM D7869 is a recent example of such test method development.

Often, multiple laboratory and outdoor weathering tests are combined into a “test program” that includes materials, components, and the final product. Examples from the automotive and PV industries will be discussed.

Temperature Effects in Artificial and Natural Weathering

The surface temperature of a material exposed to natural sunlight or to artificial Xenon-arc radiation is critical for its degradation behavior. In this webinar we present how surface temperatures can be measured in weathering setups and which test parameters will influence the surface temperature. We will show models and examples how the surface temperature influences the degradation process.

The surface temperature of a material exposed to natural sunlight or to artificial Xenon-arc radiation is critical for its degradation behavior. In this webinar we present how surface temperatures can be measured in weathering setups and which test parameters will influence the surface temperature. We will show models and examples how the surface temperature influences the degradation process.

Accelerated Outdoor Weathering: EMMAQUA

Accelerated outdoor weathering with linear Fresnel-reflecting concentrators that follow the path of the sun and concentrate solar radiation onto the test specimen is well established (see e.g. ASTM G90). The use of natural solar radiation often results in degradation processes that are very similar to those observed in static outdoor weathering. Rain and dew can be simulated by spraying the specimen with deionized water.

Since traditional mirrors concentrate the entire solar spectrum, substrates with poor thermal conductivity, such as plastics or composites, are usually not suitable, as they can easily overheat and be thermally decomposed. Coatings on substrates with good thermal conductivity, such as metals, can, however, be effectively cooled from the rear with air and are therefore usually very suitable.

A more recent development in accelerated outdoor weathering is the use of so-called “cool mirrors” (CM), which mainly reflect UV and short-wave visible, but not infrared radiation. This results in much lower specimen temperatures compared to traditional mirrors. This enables temperature-sensitive materials to be tested.

Accelerated outdoor weathering with linear Fresnel-reflecting concentrators that follow the path of the sun and concentrate solar radiation onto the test specimen is well established (see e.g. ASTM G90). The use of natural solar radiation often results in degradation processes that are very similar to those observed in static outdoor weathering. Rain and dew can be simulated by spraying the specimen with deionized water.

Since traditional mirrors concentrate the entire solar spectrum, substrates with poor thermal conductivity, such as plastics or composites, are usually not suitable, as they can easily overheat and be thermally decomposed. Coatings on substrates with good thermal conductivity, such as metals, can, however, be effectively cooled from the rear with air and are therefore usually very suitable.

A more recent development in accelerated outdoor weathering is the use of so-called “cool mirrors” (CM), which mainly reflect UV and short-wave visible, but not infrared radiation. This results in much lower specimen temperatures compared to traditional mirrors. This enables temperature-sensitive materials to be tested.

Part 2: Natural and Outdoor Weathering

This seven-part successive series covers the fundamentals of natural and accelerated weathering, basics of photochemical degradation, and methodologies for understanding and improving correlation and acceleration. Participants will learn through proven theoretical concepts and practical research examples from industries that take a leading-edge approach to assessing service life prediction of materials.

This seven-part successive series covers the fundamentals of natural and accelerated weathering, basics of photochemical degradation, and methodologies for understanding and improving correlation and acceleration. Participants will learn through proven theoretical concepts and practical research examples from industries that take a leading-edge approach to assessing service life prediction of materials.

Weathering Reference Materials

Standard reference or control materials are recommended for the validation of accelerated test methods and for control of the instrument performance. Here we show how common reference materials (e.g. ISO or AATCC blue wool scale, SAE Polystyrene, PERS and others) are used effectively to increase reproducibility and repeatability in weathering testing.

Standard reference or control materials are recommended for the validation of accelerated test methods and for control of the instrument performance. Here we show how common reference materials (e.g. ISO or AATCC blue wool scale, SAE Polystyrene, PERS and others) are used effectively to increase reproducibility and repeatability in weathering testing.

How to calculate test durations?

How long should I run a test in a Weather-O-meter to simulate one year Florida? Or: How long should I test to achieve 6 GJ/m²? We receive these types of questions every day. This seminar explains how test durations can be calculated for the most common test methods like ISO 4892-2, SAE J2527 and ASTM D7869, but also the limitations of some of these calculations.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application. ”

How long should I run a test in a Weather-O-meter to simulate one year Florida? Or: How long should I test to achieve 6 GJ/m²? We receive these types of questions every day. This seminar explains how test durations can be calculated for the most common test methods like ISO 4892-2, SAE J2527 and ASTM D7869, but also the limitations of some of these calculations.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application. ”

How to test according to ASTM D7869?

ASTM D7869 was developed for use by the automotive and aerospace transportation industries for testing exterior material (primarily coatings) for accelerated testing in xenon weathering devices. This seminar outlines how this method differentiates itself from the existing test methods for the same application and gives guidance on properly configuring your device and validating correct performance.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

ASTM D7869 was developed for use by the automotive and aerospace transportation industries for testing exterior material (primarily coatings) for accelerated testing in xenon weathering devices. This seminar outlines how this method differentiates itself from the existing test methods for the same application and gives guidance on properly configuring your device and validating correct performance.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

How to calculate test durations?

How long should I run a test in a Weather-O-meter to simulate one year Florida? Or: How long should I test to achieve 6 GJ/m²? We receive these types of questions every day. This seminar explains how test durations can be calculated for the most common test methods like ISO 4892-2, SAE J2527 and ASTM D7869, but also the limitations of some of these calculations.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application. ”

How long should I run a test in a Weather-O-meter to simulate one year Florida? Or: How long should I test to achieve 6 GJ/m²? We receive these types of questions every day. This seminar explains how test durations can be calculated for the most common test methods like ISO 4892-2, SAE J2527 and ASTM D7869, but also the limitations of some of these calculations.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application. ”

Part 3: Laboratory Weathering Fundamentals

This seven-part successive series covers the fundamentals of natural and accelerated weathering, basics of photochemical degradation, and methodologies for understanding and improving correlation and acceleration. Participants will learn through proven theoretical concepts and practical research examples from industries that take a leading-edge approach to assessing service life prediction of materials.

This seven-part successive series covers the fundamentals of natural and accelerated weathering, basics of photochemical degradation, and methodologies for understanding and improving correlation and acceleration. Participants will learn through proven theoretical concepts and practical research examples from industries that take a leading-edge approach to assessing service life prediction of materials.

How to Achieve Acceleration in Weathering

Over time, materials and products are affected by weather, leading to undesired changes in appearance and function, ultimately resulting in product failure. Accelerated weathering tests aim to determine the product's lifespan in a shorter period by compressing or intensifying the impact of weather factors on the samples.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

Over time, materials and products are affected by weather, leading to undesired changes in appearance and function, ultimately resulting in product failure. Accelerated weathering tests aim to determine the product's lifespan in a shorter period by compressing or intensifying the impact of weather factors on the samples.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

How to test according to ASTM D7869?

ASTM D7869 was developed for use by the automotive and aerospace transportation industries for testing exterior material (primarily coatings) for accelerated testing in xenon weathering devices. This seminar outlines how this method differentiates itself from the existing test methods for the same application and gives guidance on properly configuring your device and validating correct performance.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

ASTM D7869 was developed for use by the automotive and aerospace transportation industries for testing exterior material (primarily coatings) for accelerated testing in xenon weathering devices. This seminar outlines how this method differentiates itself from the existing test methods for the same application and gives guidance on properly configuring your device and validating correct performance.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

How to Achieve Acceleration in Weathering

Over time, materials and products are affected by weather, leading to undesired changes in appearance and function, ultimately resulting in product failure. Accelerated weathering tests aim to determine the product's lifespan in a shorter period by compressing or intensifying the impact of weather factors on the samples.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

Over time, materials and products are affected by weather, leading to undesired changes in appearance and function, ultimately resulting in product failure. Accelerated weathering tests aim to determine the product's lifespan in a shorter period by compressing or intensifying the impact of weather factors on the samples.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

How to test according to ISO 105-B02?

Lightfastness (or colorfastness to light) testing of textiles according to ISO 105-B02 is one of the most applied test methods for Xenon-arc instruments. This seminar explains the different methods and conditions in the standard and how lightfastness ratings can be assigned to the tested fabrics.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

Lightfastness (or colorfastness to light) testing of textiles according to ISO 105-B02 is one of the most applied test methods for Xenon-arc instruments. This seminar explains the different methods and conditions in the standard and how lightfastness ratings can be assigned to the tested fabrics.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

How to test Leisure & Sporting Goods?

Discover the secrets to ensuring that your Leisure & Sporting Goods products maintain their appearance and performance in a variety of environmental conditions. Learn about essential weathering tests using xenon-arc instruments. Tests that go beyond basic UV exposure and combine sunlight, heat and water to reveal product durability.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

Discover the secrets to ensuring that your Leisure & Sporting Goods products maintain their appearance and performance in a variety of environmental conditions. Learn about essential weathering tests using xenon-arc instruments. Tests that go beyond basic UV exposure and combine sunlight, heat and water to reveal product durability.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

How to test according to ISO 105-B02?

Lightfastness (or colorfastness to light) testing of textiles according to ISO 105-B02 is one of the most applied test methods for Xenon-arc instruments. This seminar explains the different methods and conditions in the standard and how lightfastness ratings can be assigned to the tested fabrics.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

Lightfastness (or colorfastness to light) testing of textiles according to ISO 105-B02 is one of the most applied test methods for Xenon-arc instruments. This seminar explains the different methods and conditions in the standard and how lightfastness ratings can be assigned to the tested fabrics.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

Part 4: Laboratory Weathering Light Sources and Correlation with Nature

This seven-part successive series covers the fundamentals of natural and accelerated weathering, basics of photochemical degradation, and methodologies for understanding and improving correlation and acceleration. Participants will learn through proven theoretical concepts and practical research examples from industries that take a leading-edge approach to assessing service life prediction of materials.

This seven-part successive series covers the fundamentals of natural and accelerated weathering, basics of photochemical degradation, and methodologies for understanding and improving correlation and acceleration. Participants will learn through proven theoretical concepts and practical research examples from industries that take a leading-edge approach to assessing service life prediction of materials.

How to test according to SAE J2527?

For over 35 years, SAE J2527 has served as one of the primary tools for accelerated xenon-arc weathering for materials for exterior applications, not only by the automotive industry, but also many other industries. This seminar outlines the options within this standard, and gives guidance on properly configuring your device and validating correct performance.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

For over 35 years, SAE J2527 has served as one of the primary tools for accelerated xenon-arc weathering for materials for exterior applications, not only by the automotive industry, but also many other industries. This seminar outlines the options within this standard, and gives guidance on properly configuring your device and validating correct performance.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

How to achieve good correlation?

Correlation to real world performance is one of the key targets of accelerated weathering testing. The tester expects the same ageing behavior and the same ranking of polymer and coating performance as under natural conditions. This is not always the case.

This seminar addresses some basic approaches and measures which can help to achieve good correlation.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

Correlation to real world performance is one of the key targets of accelerated weathering testing. The tester expects the same ageing behavior and the same ranking of polymer and coating performance as under natural conditions. This is not always the case.

This seminar addresses some basic approaches and measures which can help to achieve good correlation.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

How to test Leisure & Sporting Goods?

Discover the secrets to ensuring that your Leisure & Sporting Goods products maintain their appearance and performance in a variety of environmental conditions. Learn about essential weathering tests using xenon-arc instruments. Tests that go beyond basic UV exposure and combine sunlight, heat and water to reveal product durability.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

Discover the secrets to ensuring that your Leisure & Sporting Goods products maintain their appearance and performance in a variety of environmental conditions. Learn about essential weathering tests using xenon-arc instruments. Tests that go beyond basic UV exposure and combine sunlight, heat and water to reveal product durability.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

How to test according to SAE J2527?

For over 35 years, SAE J2527 has served as one of the primary tools for accelerated xenon-arc weathering for materials for exterior applications, not only by the automotive industry, but also many other industries. This seminar outlines the options within this standard, and gives guidance on properly configuring your device and validating correct performance.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

For over 35 years, SAE J2527 has served as one of the primary tools for accelerated xenon-arc weathering for materials for exterior applications, not only by the automotive industry, but also many other industries. This seminar outlines the options within this standard, and gives guidance on properly configuring your device and validating correct performance.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

How to achieve good correlation?

Correlation to real world performance is one of the key targets of accelerated weathering testing. The tester expects the same ageing behavior and the same ranking of polymer and coating performance as under natural conditions. This is not always the case.

This seminar addresses some basic approaches and measures which can help to achieve good correlation.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

Correlation to real world performance is one of the key targets of accelerated weathering testing. The tester expects the same ageing behavior and the same ranking of polymer and coating performance as under natural conditions. This is not always the case.

This seminar addresses some basic approaches and measures which can help to achieve good correlation.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

How to follow the SAE J2413 Uniformity Protocol?

With instrument options available in the market, how can users be confident that the instruments being considered can provide accurate test results repeatably and reproducibly. While initially developed by the automotive industry to validate new instruments to perform the traditional xenon automotive methods, SAE J2413 serves as a valuable tool for users considering testing device options when compared to legacy test instruments.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

With instrument options available in the market, how can users be confident that the instruments being considered can provide accurate test results repeatably and reproducibly. While initially developed by the automotive industry to validate new instruments to perform the traditional xenon automotive methods, SAE J2413 serves as a valuable tool for users considering testing device options when compared to legacy test instruments.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

Part 5: Increasing Confidence in Correlation Through Improvements in Xenon Filtering

This seven-part successive series covers the fundamentals of natural and accelerated weathering, basics of photochemical degradation, and methodologies for understanding and improving correlation and acceleration. Participants will learn through proven theoretical concepts and practical research examples from industries that take a leading-edge approach to assessing service life prediction of materials.

This seven-part successive series covers the fundamentals of natural and accelerated weathering, basics of photochemical degradation, and methodologies for understanding and improving correlation and acceleration. Participants will learn through proven theoretical concepts and practical research examples from industries that take a leading-edge approach to assessing service life prediction of materials.

How to follow the SAE J2413 Uniformity Protocol?

With instrument options available in the market, how can users be confident that the instruments being considered can provide accurate test results repeatably and reproducibly. While initially developed by the automotive industry to validate new instruments to perform the traditional xenon automotive methods, SAE J2413 serves as a valuable tool for users considering testing device options when compared to legacy test instruments.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

With instrument options available in the market, how can users be confident that the instruments being considered can provide accurate test results repeatably and reproducibly. While initially developed by the automotive industry to validate new instruments to perform the traditional xenon automotive methods, SAE J2413 serves as a valuable tool for users considering testing device options when compared to legacy test instruments.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

How to test according to ISO 105-B06?

Hot-light fastness testing is an important test method for automotive interior materials. ISO 105-B06 gives an overview on different methods used in the global automotive industry.

This seminar addresses how testing can be done according to ISO 105-B06 and how to avoid mistakes during testing.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

Hot-light fastness testing is an important test method for automotive interior materials. ISO 105-B06 gives an overview on different methods used in the global automotive industry.

This seminar addresses how testing can be done according to ISO 105-B06 and how to avoid mistakes during testing.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

How to test according to ISO 105-B06?

Hot-light fastness testing is an important test method for automotive interior materials. ISO 105-B06 gives an overview on different methods used in the global automotive industry.

This seminar addresses how testing can be done according to ISO 105-B06 and how to avoid mistakes during testing.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

Hot-light fastness testing is an important test method for automotive interior materials. ISO 105-B06 gives an overview on different methods used in the global automotive industry.

This seminar addresses how testing can be done according to ISO 105-B06 and how to avoid mistakes during testing.

This “How to” webinar is part of a series of short, maximum 30-minute-long webinars dedicated to a specific topic or application.

Part 6: Acceleration – Assessments and Considerations in Weathering Testing

This seven-part successive series covers the fundamentals of natural and accelerated weathering, basics of photochemical degradation, and methodologies for understanding and improving correlation and acceleration. Participants will learn through proven theoretical concepts and practical research examples from industries that take a leading-edge approach to assessing service life prediction of materials.

This seven-part successive series covers the fundamentals of natural and accelerated weathering, basics of photochemical degradation, and methodologies for understanding and improving correlation and acceleration. Participants will learn through proven theoretical concepts and practical research examples from industries that take a leading-edge approach to assessing service life prediction of materials.

Part 7: Assessing Correlation Through Statistical Analysis

This seven-part successive series covers the fundamentals of natural and accelerated weathering, basics of photochemical degradation, and methodologies for understanding and improving correlation and acceleration. Participants will learn through proven theoretical concepts and practical research examples from industries that take a leading-edge approach to assessing service life prediction of materials.

This seven-part successive series covers the fundamentals of natural and accelerated weathering, basics of photochemical degradation, and methodologies for understanding and improving correlation and acceleration. Participants will learn through proven theoretical concepts and practical research examples from industries that take a leading-edge approach to assessing service life prediction of materials.