[Bongodaddy]

Hello

I am working with an epoxy system with long potlife used for casting large structural components. I am interested in knowing more about volume shrinkage before and after gelation.

I found the following article on the internet:

http://www.4spepro.org/pdf/002583/002583.pdf

In the article they state that most of the volume shrinkage happens before gelation (2/3) and the rest after gelation (1/3). I would like if somebody could help me with answering the following questions:

1) In the mentioned article they investigate the volume shrinkage of a 1 component epoxy system with low potlife cured at very high temperature 160-170 degree celsius. I use a 2 component epoxy/amine system cured at approx. 80 degree celsius. Generally does most of the volume shrinkage happens before gelation?

2)I would really appreciate if somebody could share articles/reports about this subject.

Best Regards

Peter