Apparently there are 2 paint codes for Seal Gray, I'm trying to find out if the formulas are different.
The paint code on the door sticker on my '05 997 which is Seal Gray is 6B4 yet when I bought Seal Gray touch-up paint 6B5 is marked on the packaging. Also, I'm having a new mirror housing re-painted because the first shop painted it and it is too dark, they said the code is listed as 6B5. The new shop I am using also says 6B5 is the code for Seal Gray.
I've seen on a touchup paint site the 2 codes listed one under the other for Seal Gray with no explanation. Anybody have similar experiences with this color?

 

I posted on Rennlist too - looks like 6B5 is for model years 2000 to 2004 and that 6B4 is for model years 2005 and later. Don't know what the difference is. I posted a link for you on Rennlist.