HDI-Biurete and a polyester 800g/mole with f=2.4 is made into a clear
coating.
Assuming a need for a 5% Eq Wt excess of the isocyanate. What is the amount
of isocyanate and polyol need to make 1200 g of coating which is 66.66%
solids by weight?
明早考试。。。- -
