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Royce Bair wrote: > Remember, the Lysonic E inks were lasting >120 years on the Luminos Lumijet DW Premium Glossy and Tapestry X papers, so there's a good chance they should last at 30-40 years with the 6-ink Silver inks. ----------------------- Oh, come on Royce. What good does this kind of idle speculation serve? We know that ink-to-ink comparisons aren't valid. Why try to guess at numbers when the tests are underway? Let's just be patient. The results will come. In the meantime, if you're using Fotonic/Silver inks, why switch when there is no hard evidence one way or the other? Likewise if you aren't yet using them, are the other characteristics (larger ink gamut than Lysonic E) worth the risk independent of absolute archival results? BTW, just read the page on fade testing. http://www.missupply.com/store.cgi?page=fading.html In the procedure it says, "Then we oven dry the paper at 140 degrees Fahrenheit until it is totally dry." Didn't someone on the list mention that the dyestuffs in any dye-based ink would disintegrate if the temperature was raised above about 120 degrees F? It seems to me that this would invalidate the tests for all dye based inks, Epson or otherwise. Wilhelm's tests control the temperature to 75 degrees F. I think that the amount of acceleration being employed in these tests may well simply incinerate the dyestuffs changing their character so completely that the results are not meaningful. I fully understand your wanting early results, but are others on the list bothered by this procedure? It seems that this test simply shows that MIS inks are more 1) waterproof; 2) bleach resistant; and 3) heat resistant than dye-based inks. It really doesn't say much about their light-fastness in practical display conditions. Miller Abel Santa Cruz, CA - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.