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Old 10th March 2011, 11:29 AM   #538
The Almond
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Originally Posted by Sunstealer View Post
I just found something new out. Harrit et al did have a sample of WTC primer paint in the paper - they just didn't realise it!

I have long suspected that the chip subjected to the MEK soaking was WTC primer paint but couldn't show that it was - until now.

Now what's interesting is that Harrit et al claim that the MEK chip is identical to the samples a-d in the paper even though the compositions are radically different.

Compare and contrast my corrected spectra of Fig 14 (Mg peak identified at 1.3KeV and K peak at 3.4 KeV) below

with the spectra at 2.45 in the video below (note that in the spectra below the peak at 3.7KeV is incorrectly labelled as C - it should be Ca)

This is one and the same material!

Note how in the paper they say

The bolded part is their own bias.

Que the nitpickers looking at different peak heights and claiming something different. It's not.

Fig 14 - the chip soaked in MEK in the Harrit et al paper was WTC primer paint.
Good catch on this. I've often suggested that the material in question was the anti-corrosive coating applied to the steel structure during construction. NIST describes the anti corrosion coating applied to the steel beams (also used to do the infamous 600 C temperature test) in 1-3C appendix D (check around page 433). Not shockingly, the pigments listed have iron, zinc, silicon and a proprietary pigment known as Tnemec. What's further, if you compare figure D4 to the ones shown in Harrit et al, you can't even begin to think it's anything else.
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