How to calculate NCO & OH required in kg?
Someone asked me if they have Adhesive ratio of 100:55 (Dow 2 component Adhesive).
Adhesive total Quantity required 100 kg for a particular job.
It’s a Very simple and basic Calculation.
NCO : OH
100 : 55
NCO = FINAL QUANTITY X NCO RATIO ÷ ( NCO RATIO + OH RATIO)
100 X 100 ÷ (100+55) = 64.52 kg
OH = QUANTITY X OH RATIO ÷ (NCO RATIO + OH RATIO)
100 X 55 ÷ (100+55) = 35.48 kg
Download Excel Sheet for doing 4 Ply Job Calculation.
Liquid Ink = 4 times of dry ink. Assuming 25% solid content in liquid ink.
Printing Layer – Pet
Film Density – 1.4
Film Micron – 12
Film gsm – 16.8
Job Sample Ink gsm – 1.2
Printing Layer Quantity – 300 kg
Dry ink required = (ink gsm x printing Quantity)/printing Layer gsm
= (1.2 x 300) / 16.8
= 21.42 (dry ink)
Liquid Ink = 4 times x dry ink (solid content of liquid Ink 25%)
= 4 x 21.42 = 85.68 kg (Liquid ink)