From: Mechanical properties and moisture-related dimensional change of canvas paintings–canvas and glue sizing
Weave direction
Boltzmann function parameters for groups of specimens
A1 (MPa)
A2 (MPa)
RH0 (%)
dRH
R-squared
weft
517
107
78.5
3.5
0.44
warp
175
15
0.39
bias
173
3
0.54