Can anyone tell me what the difference is between the nitro used today by Gibson and the nitro used in the 50's and 60's. I have noticed that the nitro finish used after 1980 does not yellow to the extent that the old stuff used to. I have a Heritage 80 which is now 23 years old and hanging on the wall, exposed to ultraviolet rays etc. The Gibson logo on the headstock is still pearly white. I remember reading in an article by George Gruhn where he mentioned that Gibson switched from Dupont to Valspar some time ago. I imagine the Valspar has more plasticser
in it. Didn't Gibson drop the plasticiser in 1999? What effect did that have on the aging process?
in it. Didn't Gibson drop the plasticiser in 1999? What effect did that have on the aging process?