This paper describes the effect of using Klucel G dissolved in 
ethyl alcohol (ethanol)concentration of 1 , 2% on some samples 
of thermally and photo aging sycamore wood, Which is famous 
for its use in the manufacture of wooden coffins in ancient Egypt,
and assessing its efficiency on some mechanical and chemical 
properties of sycamore wood through the use of some tests and 
analyzes were used to evaluate the concentrations of Klucel G
using examination with a Scanning Electron Microscope (SEM)
to define the surface changes before and after samples 
consolidation, and measuring pressure forces( Mechanical 
Properties) and Using Fourier-Transform infrared Spectroscopy 
(FTIR) analysis, the results of the tests and analyzes showed an 
improvement in the mechanical and chemical properties of the 
aging thermally and photo aging sycamore wood samples treated 
with Klucel G 1% concentration . The obtained data were used to 
evaluate the deterioration status of the coffin and to establish 
suitable treatment methods