User talk:GlassExpert

The recent edits by Xchemie were disconcerting, because of an attempt to steer the content away from Objectivity (for which this page was created) and into the realm of Marketing messages. Although Xchemie has added good clarifications to several statements, the majority of the edits had an unbalanced focus on UV Light issues by Xchemie and additions of TruVue-related references, which point to the probable connection of Xchemie with the US manufacturer of picture framing glass, TruVue. As a background to this issue, for the past several years, TruVue has had a de-facto monopoly position in the US market (>90% of all value-added picture framing glass sales). Further, its consistent marketing message has put UV Protection above all other attributes of picture framing glass. By focusing on the importance of UV Protection above 97% in its marketing, TruVue has managed to maintain its monopolistic position, since its competitors, who focus on the Light Transmission and Anti-Reflection features first, do not reach the UV Protection figures above 92% in order not to affect the visible performance. Providing Corporate Sponsorships to US-based trade organizations such as the FACTS, and the Image Permanence Institute (IPI), TruVue has been successful at shaping their recommendations to fit only its own products. For example, the reference that Xchemie inserted for 97% UV Protection as the minimum recommended by the IPI, precisely align with TruVue's products, although no independent and scientific study was conducted to prove this figure.

Due to the lack of impartial, independent information, this page was created to illuminate all aspects of Picture Framing glass equally and without bias, in order to give the consumers only the factual information, without the Marketing spin. The most contentious section of this article is "How much UV Filtering should a glazing have". My argument for the original version is that it should only include impartial sources. If references to IPI or FACTS are provided, as was done by Xchemie, their affiliation with TruVue should be stated, such as "Created with support from TruVue, the standard ISOxxx for Picture framing glazing, should have...". Otherwise, without scientific studies, conducted and published in support the 97% UV Filtering figure, there should be no place for these references on the Wikipedia page.

The reference to the very thorough CCI website was deleted since it provided no translation of the "μW/lm" figure to the % of UV Block between 300 and 380nm. A separate section could be established in this article to further explain the μW/lm measure, and therefore provide some further independent evaluation of the topic. GlassExpert (talk) 13:19, 3 November 2010 (UTC)