Trying to use glasscast10 to fill a plastic honeycomb structure.
Mixing 2 to 1 ratio 100ml resin 50ml hardener with few drips of yellow pigment. After pouring over the plastic honeycomb and heating the resin it is nice and clear without any visible bubbles but during hardening over time i get small trailing bubbles building up. What am i doing wrong? do i need a pressure pot or do you think there is a reaction with the plastic honeycomb.

Is the honeycomb resting on a wooden surface?  In essence the bubbles have to come from somewhere.  sometimes on wood, resin can soak in displacing air during the cure.  It is possible you may have some air trapped under the honeycomb on the cell edges that is hard to see.  Once you have done  the initial degas, as the resin heats up with the cure, the bubbles expand and it may be enough for them to dislodge and float into the resin causing the issue. 

It could be  some kind of reaction to a coating on the honeycomb.  Most plastic based materials are generally fine with  epoxy resin.


Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

+x

 

amoss125 - 6/25/2018 10:43:54 AM

Trying to use glasscast10 to fill a plastic honeycomb structure.
Mixing 2 to 1 ratio 100ml resin 50ml hardener with few drips of yellow pigment. After pouring over the plastic honeycomb and heating the resin it is nice and clear without any visible bubbles but during hardening over time i get small trailing bubbles building up. What am i doing wrong? do i need a pressure pot or do you think there is a reaction with the plastic honeycomb.