Calculating the VOC of a Mixture

Ask the Expert Question-and-Answer Archive

by Ron Joseph

December, 2004

Calculating the VOC of a Mixture

Q. If I have a base coating that is 490 g/l VOC, and an activator that is 260 g/l VOC, and the mix ration is 3:1, how do I calculate the "as applied" VOC content?

The VOC content of the mixture is as follows:

Total emissions for base	= 3L*490 g VOC/L	= 1,470 g VOC
Total emissions for curing agent	= 1L*260 g VOC/L	= 260 g VOC
Total emissions of VOC for 4L of mixture	= 1,470 g+260 g VOC	= 1,730 g VOC
VOC for 1L	= 1,730 g VOC/4 L	= 432.5 g VOC/L

Hope this helps.

Best wishes,

Ron Joseph