Yellow Blotches on iPhone 4 Screen (Anonymously) Attributed to Incomplete Chemical Evaporation

| Rumor

Scattered reports of yellow blotches on some iPhone 4 screens is being attributed to an incomplete evaporation process involving the chemical used to bond layers of the device’s glass. A poster on AppleInsider’s forums claimed to be involved with pitching the chemical to Apple, and he said that the blotches should disappear as the process completes.

“Apple is using a bonding agent called Organofunctional Silane Z-6011 to bond the layers of glass,” wrote a poster named austingaijin. “Apparently, Apple (or more likely Foxconn) is shipping these products so quickly that the evaporation process is not complete. However, after one or two days of use, especially with the screen on, will complete the evaporation process and the yellow ‘blotches’ will disappear.”

He added, “How do I know? I was involved in pitching Z-6011 to Apple.”

Effectively anonymous posters commenting on a forum don’t make for a proven fact, but with the iPhone 4 such a new device and reports of these blotches catching some attention, the comment bears mentioning.

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Travis Llewellyn

Mine had the yellowish tint on the bottom left corner and it is now gone.


Is this the same adhesive that was used on the iMacs with the pee yellow screens?


For the very last time people, THEY’RE FLOW MARKS.

Whatever people are seeing is either normal or their imagination.  Apple does not make products with defects.

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