Polyester Batch Correction

[rodrigotoledo11]

Hi,

As I´m starting to study/develop polyester resin, I´ve a basic
question:


I´ve the following formulation:
Kilograms %


?cido Ad?pico 2081,7918 62,46
Monoetilenoglicol - MEG 630,2703 18,91
Dietilenoglicol - DEG 620,9379 18,63
Tetrabutiltitanato 0,03333 0,001


And I was expecting a OH number of 55 (70 is the theoretical number )


The practical value of OH was 42.5, so I lost to many glicols. What is best calculation to correct this batch ? I mean, what is the amount of
glicols to be added to reach the target of OH number-55 ?


Thank you very much,


Best regards,


Toledo