We all know the setting time of polyester resin can be controlled by the amount of catalyst (MEK peroxide). The more catalyst the faster the setting time.
It's been quite warm and while trying to extend the working time of the resin, I keep reducing the amount of catalyst. Problem is below certain amount (I would say about 2 drops per ounce of resin) the resin just would not cure properly. So the longest working time I can get for a batch of resin is about 1/2 hour. This is OK to do a small part like a fuel tray or a hatch but it is too short for a boat hull or a complex part. Other than waiting for a cooler day, is there anything else I can do?
Epoxy is defintely easier to work with.
Thanks,
kez
It's been quite warm and while trying to extend the working time of the resin, I keep reducing the amount of catalyst. Problem is below certain amount (I would say about 2 drops per ounce of resin) the resin just would not cure properly. So the longest working time I can get for a batch of resin is about 1/2 hour. This is OK to do a small part like a fuel tray or a hatch but it is too short for a boat hull or a complex part. Other than waiting for a cooler day, is there anything else I can do?
Epoxy is defintely easier to work with.
Thanks,
kez