Accelerated weathering

accelerated weathering

[ak′sel·ər‚ā·dəd ′weth·ər·iŋ]
(engineering)
A laboratory test used to determine, in a short period of time, the resistance of a paint film or other exposed surface to weathering.

Accelerated weathering

Determination of the weather-resisting properties of materials by testing cycles that imitate natural weathering conditions as closely as possible.

accelerated weathering

A laboratory testing technique to determine, in a relatively short time, the weather resistance of a paint film or other exposed surface.
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Lon Hicks, VP/Operations Accelerated Weathering, Color/Optical/ Appearance Measurement.
Attributes/comments: Atlas introduces an enhanced and fully digital control system for the Ci4000 xenon-arc Weather-Ometer giving operators more flexibility and control of their accelerated weathering testing.
Data on transparent, compression molded flexible PVC [ILLUSTRATION FOR FIGURE 1 OMITTED] shows PR-25 to outperform Ciba's Tinuvin P benzotriazole, traditionally a workhorse for flexible PVC, after 3000 hr of accelerated weathering.
Technical service: Outdoor (real time) weathering in 23 exposure sites around the world; outdoor accelerated weathering (EMMAQUA, EMMAQUA+); instrumental color, gloss, visual evaluation, physical, optical and mechanical analysis
Customers across Europe now have a new option for reliable and cost-effective accelerated weathering and corrosion contract testing from “the most trusted name in weathering.
In terms of testing and evaluation, the company considers exterior exposure testing still to be the "gold standard," and PPG continually correlates all of its accelerated weathering testing to actual exterior exposures.
Product name: New Controller for QUV Accelerated Weathering Tester
Instrumentation: QUV accelerated weathering testers, MTG multi-test gravelometer, cyclic salt fog chamber
IRC products show compressive strength up to 5000 psi, tensile strength up to 2200 psi, negligible thermal creep at up to 200 F, no outgassing, and uv stability to 2000 hr of accelerated weathering.
Acceptable weathering requires painted parts be tested under a variety of accelerated weathering tests including Xenon Arc Wx, Carbon Arc Wx, and QUV, and up to five years of outdoor exposure in Arizona and Florida.
Testing services offered include physical and mechanical properties of materials, chemical and thermal analysis, environmental simulation and accelerated weathering testing, metallurgical services, EMI/EMC testing, electrical and electronics testing, mechanical and fatigue testing, fuel systems and fuel component testing, vibration and shock testing, impact dynamics testing, full vehicle environmental testing and commercial calibration.
After 9000 hr of natural accelerated weathering, [Delta]E was 5 versus 9.

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