G23 – 90 Standard Practice for Operating Light-Exposure Apparatus (Carbon-Arc Type) With and Without Water for Exposure of Nonmetalic Materials. ASTM CA, Type I are minimum Parex Molded Expanded Polystyrene ASTM C C ASTM .. ASTM G23 – ACCELERATED WEATHERING TEST . Document Name: ASTM G Standard Practice for Operating Light CFR Section( s): Standards Body: Exposure Apparatus (Carbon Arc Type) With and Without.

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These inorganic dyes are much more UV-resistant than the simple immersion metallo-organic dyes used by nearly all anodize jobshops.

Accelerated UV Testing – Corrosion engineering – Eng-Tips

I saw that as well Hg, but I’m not sure if the anodizing process would be considered a related coating to paint. A strippable vinyl film can be applied for protection during fabrication and installation is desired. Maintenance is not required. A yeaar, non-prorated warranty covering color, fade, chalking and film integrity is available at no additional cost.

Other dye supplier are familiar with Clariant dyes. Students Click Here Join Us! I’ve been running around in circles, and I hope someone here can help me out.

Promoting, selling, recruiting, coursework and thesis posting is forbidden. My company acquired a product line from a company we purchased, and they have specified an architectural anodize process AA-MCA34, Class II, Black for components that are used in the transit industry.


I need to identify some form of accelerated UV testing to determine if our process will perform equal to their architectural process. After exposure, specimens shall be compared with duplicate specimens not exposed to a light source for the same period of time to determine the Delta E value in accordance with ASTM D See if they do any exposure testing and if so, what standards they use.

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Defense manufacturing is all about project manufacturing and project accounting. Those suitable awtm architechural include ‘Sanodal’ in the name [Clariant was spun off from Sandoz], e. Architechural aluminum is usually dyed by the ‘two-step’ process. Click Here to join Eng-Tips and talk with other members!

Join your peers on the Internet’s largest technical engineering professional community. Are you an Engineering professional? Class 2, dyed anodic coatings, shall show no more fading or discoloration than would be equivalent to a Delta E value of 3 when subjected to the light fastness resistance test see 4.

Resources Digital Transformation may be defined in a number of different ways by analysts qstm enterprise software vendors. Page 2 – spec-data This is a SEO version of spec-data. The material is tested before and after exposure to these conditions for flammability, mechanical impact and mechanical strength.

The Eng-Tips staff asstm check this out and take appropriate action. Delivery time and price will be quoted upon inquiry. Register now while it’s still free!

Page 2 – spec-data

Vinyl film may remain on the coating during fabrication and erection. Test specimens, prepared in accordance with 4. The dye manufacturers Clariant, US Specialty Color have tech bulletins for each dye with colorfastness ratings scale of for architechural use.


For best results, cutting edges should be kept sharp, clean, properly dressed and closely aligned. This is a SEO version of spec-data. The manufacturer is responsible for technical accuracy.

By joining you are opting in to receive e-mail. Talk to a galvanizer. I need to simulate 12yrs of outdoor weather exposure. Close this window and log in. Contact the manufacturer for specific costs. Technical services are available from Petersen Aluminum Corporation and regional architectural representatives.

Can someone simply help me see the light on this subject or recommend a proper test specification that I should test to? Vinyl must be removed prior to or immediately after installation. An electrolytic process is then used to change the oxidation states of cation which have entered the anodize pores. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

If cleaning is desired, panels can be washed with mild soap and water followed by a clean water rinse. Type EM, weatherometer, hours, chalk rating of 8 or better.

MIL-AF has the following on light fastness tests: